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Showing: 101 - 150 of 645 results
  1. Plasmids 101: Degron Tags

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    Blog Post
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    March 14, 2024, 1:15 p.m.
    ...targeting or cloned in-frame to the protein of interest for plasmid-based expression systems. Degron tags...is situated between the degron and the gene of interest and the degron domain is terminal. Between the...elements (protease and degron) and the protein of interest, there is also a protease recognition site. In...the presence of the degron, and the protein of interest is untagged and functions per the usual. In the...FKBP12F36V. By fusing FKPB12F36V to your protein of interest, it can be degraded by this selective degrader...fusion protein. This will target the protein of interest to the proteasome for degradation. Like several...dimerization of an FKBP12F36V fused target protein-of-interest and the CRBN E3 ligase complex leading to ubiquitination...
  2. Plasmids 101: 5 factors to help you choose the right cloning method

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    Aug. 21, 2018, 12:31 p.m.
    ... on versatile Type IIS restriction enzymes. These cut outside their restriction sites allowing you to ... But...how? Cloning is no longer limited to restriction enzymes - although many labs still love using...extensively described in other articles; so if you are interested in learning more about any one of them, please...your E. coli do the work for you. Traditional restriction enzyme and ligase based cloning is a relatively...The ligase cost is comparable to that of the restriction enzymes and overall you’re looking at a price...of a few dollars per reaction for traditional restriction cloning. Sequence and Ligation Independent Cloning...appropriate inserts by PCR, there is no need for restriction digests, gel purifications, or ligations. The...
  3. Antibodies 101: Validation

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    Blog Post
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    March 24, 2022, 1:15 p.m.
    ...protein of interest endogenously and transfect them with a plasmid encoding your protein of interest. Then ...plasmid encoding your protein of interest, known as Gene of Interest (GOI), and transfect it into your...bioinformatician) to look at RNA expression of your gene of interest across a set of human tissues.  From this data... target. Removing (or reducing) the protein of interest in your sample, should lead to reduced or eliminated...at the subcellular localization of a protein of interest. Conveniently, you found a cell line in which ...from the cells transfected with your protein of interest and show just the faintest band from the cells...on the expression of a new receptor that is of interest to you. You found a couple of antibodies that ...
  4. 28 Hot Plasmid Technologies from 2015

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    Blog Post
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    Dec. 23, 2015, 3:30 p.m.
    ...cognate peptide epitopes fused to the protein of interest are recognized and thus fluorescently labeled ...modified to use different antibiotic resistances, restriction enzymes and plasmid backbones. pUCXKT contains...fusion of the antibiotic cassette to the gene of interest. The gene to be expressed is amplified using a...gene-specific forward primer containing the desired restriction site (the MCS has several options) and a pUCX-specific...resistance cassette, a ribosome binding site, SacI restriction site and a linker region. The PCR product is ...used with other entry clones encoding the ORFs of interest: Buj et al., BMC Molecular Biology. 2013 August...A desired insert is cloned using traditional restriction enzyme cloning to create an Entry vector containing...
  5. 22 Hot Plasmid Technologies from 2014

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    Jan. 6, 2015, 5:21 p.m.
    ...method for protein inactivation Your protein of interest does x, but it also participates in y. Depletion...accomplished by knocking down your endogenous protein of interest and co-expressing its replacement recombinant ...into Golden Gate entry vectors via traditional restriction enzyme cloning, TA cloning, or annealing of oligonucleotides...would like to extend this work into their RTK of interest. Grusch, M. et al., EMBO J 2014 Aug 1;33(15)... genetic tag which can be fused to proteins of interest for EM imaging, or targeted to subcellular regions...sequence that effectively targets your gene/region of interest is a key step for CRISPR/Cas9 gene editing. Dr...users blog. New CRISPR plasmids available! Interested in purifying Cas9? Check out pET-28b-Cas9-His...
  6. Deep Mutational Scanning with One Pot Saturation Mutagenesis

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    Blog Post
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    Feb. 22, 2017, 3:30 p.m.
    ...pair of restriction enzymes. These enzymes, Nt.BbvCI and Nb.BbvCI, recognize the same restriction site, ...multiple amino acid changes affect a protein of interest’s function. This technique relies on the generation...deep mutational scanning.     3 reasons to be interested in deep mutational scanning Hundreds of thousands...variable bases (NNN) at any given codon site of interest can be cloned into an expression vector with Gibson...mutagenic primers that tile across a region of interest, generating multiple mutants in one PCR reaction...primer sets tile across the protein or region of interest. A low primer-to-template ratio is used to promote... be sense. Does the orientation of the BbcVI restrict site matter? Most of the time no, but there are...
  7. 5 Great Apps for Lab Life

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    Blog Post
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    Sept. 22, 2016, 2:30 p.m.
    ...information in the app is restricted to the NEB inventory only, the restriction enzyme sequence resource...smartphone nearby. We tailor these devices to our own interests with the content we store in them: music, emails...comes in handy when I use protocols that require restriction enzymes or PCR. The app contains a double digest...digest tool that is only helpful for NEB restriction enzymes since the instructions use NEB buffers. Nonetheless...name to discover all the information about that restriction enzyme or share it via email with a colleague...colleague. The app is also great if you’re adding a restriction site to a primer, you only need to skim the alphabet...screen to find the sequence for your enzyme of interest. Lastly, the Tm calculator helps you set up an...
  8. GCE4All: Making Genetic Code Expansion Accessible

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    Blog Post
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    June 15, 2023, 1:15 p.m.
    ...If you study proteins, you’re probably quite interested in the canonical 20 amino acids. But in your ...your quest to learn more about your protein of interest, you may find the available amino acids a bit…limiting...Shandell et al., 2021).   How it works If you’re interested in using GCE, here are the basic requirements...plasmid will be needed to introduce the gene of interest containing the chosen codon that will result in...of the non-canonical amino acid at the site of interest (figure 1). While the codon used is often one ...getting high enough expression of your protein of interest. If that wasn’t enough, in this development-focused...introducing ncAAs with protein modifications of interest or any of a huge variety of ncAAs to study the...
  9. GPCRs: How Do They Work and How Do We Study Them?

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    Blog Post
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    Feb. 11, 2021, 2:15 p.m.
    ...TANGO) (Kroeze et al., 2015). PRESTO-TANGO uses a modified Tango beta-arrestin recruitment assay to measure... examples with plasmids deposited at Addgene.  PRESTO-TANGO: The ligands that activate many GPCRs are...Roth’s lab created an open source resource called PRESTO-TANGO (parallel receptorome expression and screening...this assay, binding of an agonist recruits a beta-arrestin-TEV protease fusion to a receptor-transcription...ligands for unknown GPCRs. You can find the entire PRESTO-TANGO kit at Addgene! TRUPATH: Bryan Roth’s lab... G proteins activated by ligand-bound GPCRs of interest. The TRUPATH plasmid kit consists of 20 plasmids...for more information on this system! GPCR-APEX: Interested in tracking the downstream signaling pathways...
  10. Plasmids 101: Screening Strategies Used in Plasmid Cloning

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    Blog Post
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    Sept. 15, 2020, 1:15 p.m.
    ...use restriction digest to screen your clones, but there are many other ways to choose restriction enzymes...Blue-white screens rely on vectors where the gene of interest is inserted into the middle of the lacZ gene, ...blue-white screen. Image from Stefan Walkowski.   Restriction digest Another way to distinguish between colonies...inserts from those that do not is by using a restriction digest. The key is to be strategic about your...on whether the plasmid contains your insert of interest or not. For example, choose enzymes that only ...route, check out our protocol video on using restriction digests to analyze plasmids, which can help you... you visualize this process, or visit our restriction analysis blog post. Colony PCR Colony PCR can...
  11. Advice on Career Paths and the Green Card Process for International Researchers and Entrepreneurs

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    Blog Post
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    Dec. 20, 2017, 2:33 p.m.
    ...to you as a researcher. National interest waiver The National Interest Waiver (NIW) allows for self-sponsorship...as the National Interest of the EB-1A. Furthermore, the ability to leverage the prestige of the employer...Cap Subject Industry H1B Academic H1B National Interest Waiver EB-1A EB-1B Cap subject industry H-1B...opportunities to develop skills related to their areas of interest. Additionally, since most universities and non-profit...determine if an applicant qualifies for the National Interest Waiver. The three prongs are: (1) The foreign ... and plan for future activities; including the interest of the greater scientific field, potential customers...must be able to show that you serve the national interest to a substantially greater degree than the majority...
  12. Visualizing Protein Turnover In Situ

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    Jan. 16, 2018, 3:20 p.m.
    ...-in of fluorescent tags into the gene locus of interest. An advantage of this alternative is the possibility...in situ. I was in luck when I attended a very interesting talk by Prof. Erin M Schuman, a former Caltech...antibodies directed towards two endogenous proteins of interests, suspected to interact, are added to a cellular... strand added to them. Only if the proteins of interest are in close proximity to each other can the DNA... one antibody was directed toward a protein of interest but the second antibody was directed toward AHA...antibodies recognized an endogenous protein of interest that also had incorporated the AHA tag after pulse...time. Thus, only newly synthesized proteins of interest were detected and later visualized by FUNCAT-PLA...
  13. Tagging Optogenetics and Chemogenetics Receptors: Fluorescent Proteins and Other Options

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    Blog Post
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    May 11, 2021, 1:15 p.m.
    ...method to identify the expression of transgenes of interest. Furthermore, fluorophore variants (for example...simultaneous identification of more than one protein of interest. However, in our experience, we found that fluorescent...than an aid, in the expression of the protein of interest. The green fluorescent protein (GFP) and mCherry...interfere with the correct function of the protein of interest. In our studies, we used AAV viral vectors to ...influence on the expression of the transgene of interest and its localization in the membrane. The lesson... can impact the expression of the transgene of interest. In our studies, mCherry interfered with the transport...could help improve the transport of protein of interest the membrane.   Figure 1: Electron microscope...
  14. The Scientific Conference Poster Session: Tips for Success

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    Blog Post
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    Aug. 29, 2019, 12:50 p.m.
    ...including more background on how your virus of interest causes cancer, as well as therapeutic strategies...the conference, map out which posters you are interested in viewing. For most larger conferences, poster...session, so bookmark which posters are of most interest to you a few days in advance. If you don’t have...If you come prepared with a list of posters of interest, then you’ve already set yourself up for success... – kindly let the presenter know you are very interested in his/her work, and would enjoy hearing the ...constraints, there may be particular poster you are interested in viewing which has drawn a large crowd, making...Time permitting, you can go back to the most interesting and popular posters at the end of the session...
  15. Scientist Networking: What is an Informational Interview?

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    Blog Post
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    July 1, 2014, 3:42 p.m.
    ... do during your training is meet interesting people doing interesting things. I call this building relationships...learning new things from other scientists doing interesting work. Consider this to be like any other research...research project. You’ve met someone whose career interests you or you want to pursue someone doing a job ...nonthreatening request to discuss experience, interests and career path. Because there is no demand for...what networking is about), but be upfront about interest in a job. Ask openly to be connected to someone...people like to help One good place to look for interesting connections is your university’s alumni database...too busy to respond to you). You will uncover interesting opportunities by meeting with people working ...
  16. Viral Vectors 101: Systemic Capsids

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    Blog Post
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    Oct. 12, 2023, 1:15 p.m.
    ...regions. If you’re interested in studying the brain in a way that goes beyond such restrictions, you may want...Mich et al., 2021) can help restrict expression to your cell type of interest, while miRNA target sites ...large or diffuse biological structures. Of primary interest here are systemic capsids that target the central..., including species, strain, age, sex, area of interest, and health. While it’s always helpful to start...your average AAVs — and have many of the same restrictions, like limited cargo space (~4.7 kb) for your...used to prevent expression in cell types not of interest. Systemic capsids packaging Cre-dependent transgenes... with Cre-expressing transgenic mouse lines to restrict transgene expression to specific tissues and cell...
  17. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

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    Blog Post
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    July 7, 2020, 1:15 p.m.
    ...Harris Lab relies on the restoration of a frame-shift in mCherry that restores fluorescence to monitor ...that disrupts fluorescence due to a frameshift. Restoration of fluorescence can only occur through editing...results in two DSBs that can be repaired by NHEJ restoring mCherry expression. Cells can then be sorted using...C-to-T editing by the APOBEC-Cas9 editosome would restore eGFP fluorescence, making it easy to quantify single... point mutations in eGFP that results in the restoration of fluorescence. Transient reporter for editing...-GFP conversion and to target specific loci of interest in the genome. The Wang and Brafman lab showed...higher frequency of genomic base pair edits of interest compared to cells segregated solely by a reporter...
  18. FastCloning: A Newer, Simpler Cloning Technique

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    Blog Post
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    Nov. 1, 2016, 2:30 p.m.
    ...Comparison Between Standard Restriction Cloning and Fast Cloning Requirement Restriction Cloning Fast Cloning...elements of biomedical research. Traditional restriction cloning is one of the oldest of these techniques...purification, ligation, and transformation. While restriction cloning is still routinely performed by many ...Cloning Choose Restriction Enzymes + - PCR Amplification + + Digestion + + Gel Purification + - ...products and digest with methylation sensitive restriction enzyme DpnI to remove the templates. Digestion...graduate student at the University of Connecticut interested in protein science.     References: 1. Celie,... restriction cloning...
  19. Antibodies 101: Introduction to Gating in Flow Cytometry

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    Blog Post
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    April 4, 2024, 1:15 p.m.
    ...cells of interest do not lie beyond the dimensions displayed in the plot. (B) A more restrictive gate results...of my cells of interest lies within a clear negative population. When you’re interested in measuring a... to select and precisely measure your cells of interest. In many experiments you’ll be working with a ... on the following gates, cells that are not of interest can still be gated out later. Based on personal...(single cells, live cells, my marker stains of interest). Let’s double-click inside our gate and proceed...you have identified and gated on your cells of interest, you will likely need to exclude all duplicate...multiple individual gates around the populations of interest (Figure 6). A.                                                                                               ...
  20. Using Phosphoserine to Study Protein Phosphorylation

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    Blog Post
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    June 23, 2016, 2:30 p.m.
    ...cloned with an ORF of interest for customized experiments. Once the ORF of interest is cloned into one of...phosphomimetic residues. The phosphorylated residue of interest is mutated to a negatively charged residue, aspartate...plasmid encoding the open reading frame (ORF) of interest (Figure 2). 1. The phosphoserine OTS The backbone...a plasmid encoding their open reading frame of interest. Two expression systems have been verified for...instead of a glutamate which allows the system of interest to be validated first through the production of... generate as much pSer-incorporated protein of interest as possible, some optimization will be necessary...to a single phosphate moiety on the peptide of interest.  After confirming pSer incorporation, researchers...
  21. 27 Hot Plasmids from 2016

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    Dec. 22, 2016, 3:03 p.m.
    ...unique restriction enzyme site and unique primer sites for more rapid screening by restriction digest ..., et al. Cell Rep. 2015. PubMed PMID: 26190106 PRESTO-TANGO: An open-source resource for drug discovery...ligands for orphan GPCRs is of significant medical interest, however efforts to do so have been hindered by...receptors. Bryan Roth's lab has a newly available PRESTO-TANGO kit which allows researchers to interrogate...publication, Kroeze et al. describe their enhanced TANGO arrestin recruitment assay incorporating 314 codon-optimized...and Screening via Transcriptional Output-TANGO (PRESTO-TANGO) to screen the NCC-1 library of approved ...discovery. Researchers can use plasmids from the PRESTO-TANGO kit directly for drug screening or easily...
  22. Extracurricular Activities for a Strong Science Career Path

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    Blog Post
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    Jan. 21, 2014, 3:08 p.m.
    ... and interests. Are you particularly good at writing and editing manuscripts? Are you interested in scientific...science professions based on their skills and interests. Once scientists identify potential career pathways... academic setting and to shape and strengthen interests and skills. Although the word “extracurricular... potential careers that suit these skills and interests: Use career planning tools such as the Individual...opportunities beyond academia. Once a profession sounds interesting, TAKE ACTION! Taking action: Examples of extracurricular...outside your particular field of study Assess your interest in a different field Outreach activities...information about shaping your career to your values, interests, and skills? Curious to know where graduate students...
  23. PiggyBac-ing Through the Genome Editing Field

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    Blog Post
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    May 31, 2016, 3:30 p.m.
    ...efficiencies that may be low in the cell line of interest. The piggyBac™ system allows for significantly...of the donor-transposon (carrying your cargo of interest) into random ‘TTAA’ sites throughout the genome...line-dependent, and should be tested in the cell line of interest. Importantly, by varying these ratios, you can... or minimize expression levels of your gene of interest, as needed. Controlling the expression levels ...isolating the specific cells that have the edit of interest. Fortunately, by combing nuclease technology with...transposon in a donor plasmid carrying the DNA edit of interest, along with a site-specific nuclease (such as ...thousand clones to find a cell line with the edit of interest. With the larger piggyBac™ donor vector, it is...
  24. Antibodies 101: Secondary Antibodies

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    Blog Post
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    Dec. 21, 2021, 2:15 p.m.
    ...protein, and then voila! Wherever your protein of interest is, a signal will also be. This is the direct ...giving you enough signal to detect your protein of interest, it may be time to look at the indirect approach...While a primary antibody binds to the protein of interest, a secondary antibody binds to the primary antibody...molecules associated, indirectly, with each protein of interest.    Figure 1: The direct approach (left...secondary antibodies are indicated when the protein of interest is found in low amounts or if the conjugated signaling...primary antibody for your assay and protein of interest is often one of the most challenging components...multiplex assay - one with multiple proteins of interest - the secondary antibody needs careful consideration...
  25. A Practical Guide to Optimizing AAV DIO and FLEx Vector Expression

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    Blog Post
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    Nov. 2, 2021, 1:15 p.m.
    ...recombinases like Cre or Flp in their cells of interest and recombinase-dependent AAV vectors for selective...to achieve adequate expression in your cells of interest.  The AAV serotype used can exhibit profound differences...you are using transduces cells that you are not interested in with greater efficiency, it could lead to ...understand which serotype best transduces your cells of interest. We recommend testing several different serotypes...determine which one is the best for your cells of interest.  Determine injection titers and volumes based...injection parameters needed to transduce your cells of interest. Using a constitutively expressing vector for ...is important to test it in the brain region of interest, especially when using DIO/FLEx vectors for off-target...
  26. Plasmids for Endogenous Gene Tagging in Human Cells

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    Blog Post
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    April 6, 2017, 1:02 p.m.
    ...precise location of the protein or structure of interest. Endogenous gene tagging is an ideal solution ...creating the plasmids was to identify the gene of interest and decide which terminus, N or C, to tag and ...researchers who study the protein or structure of interest. For a C-terminal tag, as shown in the example...contains 1 kb homology arms matching the gene of interest, a linker, and the GFP tag sequence to be inserted...near either the beginning or end of the gene of interest —in our case in the genome of an hiPS cell. While...this example, at the C-terminus of the gene of interest. To get the molecular components of CRISPR/Cas9...plasmids for introducing tags into your gene of interest. Researchers have developed a variety of endogenous...
  27. Antibodies 101: ELISA (Enzyme-linked Immunosorbent Assay)

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    Blog Post
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    Aug. 24, 2021, 1:15 p.m.
    ...antibody that is specific to the protein you are interested in detecting in your sample. When an ELISA kit...wells, and the antibodies bind to your protein of interest.  The next step is to detect the protein-antibody... sample. However, in this case your protein of interest is pre-incubated with a known amount of an antibody...antibody (meaning it hasn’t bound to your protein of interest) will bind to the competing antigen in the wells...inverse measure of the amount of your protein of interest in the original sample. The competitive ELISA ...sandwich or competitive ELISA because the protein of interest is then detected by an enzyme-conjugated antibody...used to calculate the amount of your protein of interest that is present. Using a Standard Curve To do ...
  28. Technical Design of a Western Blot

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    Aug. 22, 2024, 1:15 p.m.
    ...impact the antibody’s binding to your protein of interest. Protein preparation Before you can blot your ...incubation temperature for your specific protein(s) of interest.  Determining linear detection range If you are...depends mostly on the weight of the proteins you’re interested in. Table 1 lists the most common types of gels...in a variety of pore sizes. If your protein of interest is small, you may want to consider a smaller pore... size (0.2 µm). Conversely, if your protein of interest is large, look for a larger pore size (0.45 µm... and are worth considering if your proteins of interest vary wildly in size. However, these systems are...It’s fairly easy to decide!  If your protein of interest is available in pure form, you can use it to create...
  29. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

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    Blog Post
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    April 9, 2019, 1:13 p.m.
    ...University of Amsterdam). Tagging a protein of interest with a fluorescent protein to study its function...all of the native properties of the protein of interest can be challenging. In this blog I discuss strategies...relatively long linkers between the protein of interest and the fluorescent protein. These were either...fusions at the N- and C- termini of your protein of interest The most straightforward fusion protein is made...C-terminus of the fluorescent protein and protein of interest (POI). To indicate the sequence, people often ...mScarlet-tubulin (Plasmid #85045). We often use restriction enzymes in the multiple cloning site for generating...Inserting a fluorescent protein within your protein of interest We have encountered several proteins for which...
  30. Antibodies 101: The Basics of Western Blotting

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    March 8, 2021, 2:41 p.m.
    ...ve gotten the plasmid encoding your protein of interest from Addgene, transfected it into your target ...lane can help confirm the size of the protein of interest. An electric current applied to the gel causes...with a primary antibody against your protein of interest. But which antibody should you use? You will likely...different antibody options targeting your protein of interest from a variety of vendors and you may even find...expression knocked down or knocked out. If you are interested in making your own knockout line for validation... Bauer's labs.    Visualizing your protein of interest with the help of secondary antibodies In order...the primary antibody, which binds the protein of interest, is not labeled. Instead, a conjugated species-specific...
  31. How to Make Friends and Meet People at a Scientific Conference

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    Blog Post
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    Aug. 7, 2014, 1:58 p.m.
    ...more easily. Attend special interest group sessions that match your interests. I favor small conferences...provide the opportunity to meet people who are interested in the same things you are on a deep level. Right...common. Namely, the scientific question you are interested in and this is a great ice breaker. Of course...relationships go further and grow over time, but being interested in the same phosphate of your favorite kinase...natural time to meet someone since you are both interested in the same talk. Read more on this advice to...say so. If you read a paper that you think would interest them, send it and ask for their input. Connect...
  32. Viral Vectors 101: An Introduction to AAV

    Type
    Blog Post
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    May 30, 2023, 1:15 p.m.
    ...gene of interest (or genes) need to be 4.7 kb or less to fit in a single rAAV. For those interested in heftier...icosahedral capsid, that can be used to express genes of interest in cell and animal models. AAVs are non-pathogenic...host cell. In order to make room for a gene of interest, AAVs used in research have their genomes “gutted... than in vitro. On the other hand, if you’re interested in expressing multiple small genes, you can design...expression via switches placed in your cell type of interest. Careful combination of promoters, gene switches...legend from Okada, 2013.   scAAV If your gene of interest is truly small (<2.5Kb) and you need expression...
  33. Live and Let Dye: Self-Labeling Protein Tags

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    Blog Post
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    April 16, 2024, 1:15 p.m.
    ...different plasmids containing the same protein of interest tagged with different fusion proteins for different...dye or other functional ligand, your protein of interest will end up linked to whatever molecule you choose...useful ligand, gray structure is the protein of interest, and black is the fusion tag or labeling system...attach a ligand to a peptide tag on your protein of interest or using non-natural amino acids to directly incorporate...minimally-disruptive genetic tag on the protein of interest. Table 1: Summary of popular self-labeling tag...orthogonal self-labeling tags on different proteins of interest (or one self-labeling tag and a fluorescent protein...sample to label sub-populations of your protein of interest. For example, the Cohen lab used HaloTag for their...
  34. A Primer on Optogenetics: Introduction and Opsin Delivery

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    Blog Post
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    Sept. 10, 2015, 2:30 p.m.
    ...in nearly any neuroscience project or topic of interest. Despite its power and versatility, the technique...experiment to test for sufficiency of your circuit of interest in promoting reward is a self-stimulation experiment...implantation of the optical fiber into the region of interest 3) Behavioral experimentation I’ll discuss some...construct in the brain region and cell type of interest is obviously of critical importance to any optogenetic...promoters and other genetic manipulations to help restrict expression to a specific neuronal subtype. However...constructs are injected directly into the region of interest using stereotaxic surgery (stereotaxic surgery...the proper coordinates of your brain region of interest (as shown in the figure below). Since most of ...
  35. Experimenting in an Open Source lab: from CRISPR to Cats

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    Blog Post
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    July 23, 2015, 2:30 p.m.
    ...technologies and spaces where interested parties can do research. This interest manifested itself in the creation...Over the decades science has become increasingly restricted to academic and industrial labs, but recently...for our computer scientists, many of whom are interested in biology but don’t really know how to start...pipeline. It’s possible that we’ll find something interesting and contribute it back to the kittybiome project...website. Markerspaces differ depending on the interests of their community, and biology is not yet common...recognition, he returned to school to merge his interests in biology and computing. In 2009, he founded ...
  36. Golden Gate Assembly Upgrades: More Fragments, Faster Assembly, and Higher Fidelity

    Type
    Blog Post
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    Oct. 11, 2018, 12:30 p.m.
    ...hierarchical approaches using different Type IIS restriction enzyme specificities at each step. Factors such...limitations through the use of engineered Type IIS restriction enzymes and careful choice of junction sequences...involves the simultaneous activities of a Type IIS restriction enzyme such as BsaI, and a DNA ligase such as...receives the assembly after similar Type IIS restriction enzyme cutting results in 5’ four base overhangs... provide optimal reaction temps for both the restriction enzyme and ligase, thereby enhancing the ordered...destination construct and functioning Type IIS restriction enzyme and DNA ligase, any single omission should...re-engineering of the original BsaI-HF® Type IIS restriction enzyme and the completion of T4 DNA Ligase fidelity...
  37. A Guide to Starting Your Own Journal Club

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    Blog Post
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    Feb. 6, 2020, 3 p.m.
    ... Perhaps interest has simply waned. When attendance slumps below a certain level or interest wanes off...things to think about. Choosing a topic and gauging interest The first thing to do if you’ve thought about ...club is to find a topic and seeing if others are interested. You don’t want to pick a topic and have no one...directly involved in the project.  Once we gauged interest from relevant parties, and the company at large... stay caught up and to allow those who may be interested in attending to see what they are missing!  So...institutional inertia drives the meeting rather than interest. These are the journal clubs where participants...
  38. Finding nucleic acids with SHERLOCK and DETECTR

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    Blog Post
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    April 16, 2020, 1 p.m.
    ...presence and quantity of DNA, RNA or a mutation of interest. Together SHERLOCK and DETECTR demonstrate the...be programmed with crRNA to target an ssRNA of interest, for example, a sequence specific to a virus or...Csm6 can cleave ssRNA complementary to a crRNA of interest (Niewoehner and Jinek, 2016) and is conveniently..., binding of Cas13 to the programmed region of interest would lead to both the cleavage of a Cas13 specific...flow strips, the presence of your DNA or RNA of interest within a given sample is simply determined by ... When Cas12a-cRNA base pairs with the dsDNA of interest, the DNase activity of Cas12a is initiated. Surrounding... signal designates the presence of your DNA of interest, in this case HPV. As proof of concept, the lab...
  39. Important Considerations in Optogenetics Behavioral Experiments

    Type
    Blog Post
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    Oct. 1, 2015, 2:30 p.m.
    ...you do will be determined by the topic you’re interested in studying, but, in today’s post, we’ll discuss...short blog post, but some examples I’m personally interested in include: intracranial self-stimulation (ICSS...neurobiology of addictive diseases, which means we are interested in circuits that mediate drug taking behavior...basal neuronal activity in your brain region of interest could be low or highly variable without the behavioral...around a behavioral test in which your circuit of interest is putatively involved in regulating the behavioral...behavioral output. For example, if you are interested in studying a brain region that may be important in...Jeanne Kreek at the Rockefeller University.  His interests include the role of learning and memory in opioid...
  40. Plasmids 101: Walkthrough of Addgene’s Snapgene-Powered Quality Control Process

    Type
    Blog Post
    Published
    Feb. 1, 2018, 3:07 p.m.
    ...is often our first clue about where the gene of interest might be located. By easily using BLAST to check...additional verification experiments: Primer and restriction digest design Some regions of plasmids are difficult...present in the plasmid, we might need to perform a restriction digest to confirm the size of the plasmid and...including our most popular primers and certain restriction enzymes, but you will also be able to create ...annotations and design additional experiments like restriction digests. We’ll have a tutorial showing all of...Basic Molecular Biology Protocols Diagnostic Restriction Digest Protocol ...
  41. Q&A with Karen Katz and Carl Paratore, the Newest Members of the Addgene Board of Directors

    Type
    Blog Post
    Published
    Feb. 19, 2019, 1:36 p.m.
    ...I would be interested in joining the audit committee about five years ago. I was interested in what she...there will always be an interest in sharing, there will always be an interest in protecting intellectual...the open science movement is that it provides interesting and unique challenges for intellectual property...that balance is, and will continue to be, an interesting legal and professional challenge.Paratore: The...
  42. Improved Plasmid Maps Powered by SnapGene

    Type
    Blog Post
    Published
    June 29, 2017, 1:06 p.m.
    ...identify. Improved Restriction Enzyme Handling - SnapGene’s software positions restriction enzyme annotations...paste functionality. Restriction Enzymes Here you'll find a table of restriction enzymes that cut the...previous mapping software and now includes Type IIS restriction enzymes that are commonly used for Golden Gate...clicking on column heads. Clicking on a particular restriction enzyme here also highlights it in the “Map” and...
  43. Viral Vectors 101: Inverted Terminal Repeats

    Type
    Blog Post
    Published
    Oct. 19, 2023, 1:15 p.m.
    ...tool that allow scientists to express a gene of interest in a cell or animal model. AAV plasmids contain...cassette, which contains a promoter, the gene of interest, and a polyA signal. Created with biorender.com... an AAV vector plasmid, they flank the gene of interest. A single ITR consists of palindromic arms (A-...identification of non-dominant ITR sequences.  Restriction digests with the enzymes SmaI and SrfI can also...deletions and point mutations will go undetected by restriction digest methods.    Resources and references... S., Lee, W., Walsh, N., Iozza, K., Huang, N., Preston, G., Drouin, L. M., Jia, N., Deng, J., Hebben, ...
  44. Flow Cytometry Readouts: Yes, No, and Everything in Between

    Type
    Blog Post
    Published
    Aug. 20, 2024, 1:15 p.m.
    ...and see one of two results for your antibody of interest: two clear populations or a huge smear across ...on the smeary dot plot shows the population of interest. Created with biorender.com.   In such cases... all cells that are positive for the marker of interest. MFI would be higher for a signal peak that shifts..., you can still continue gating populations of interest with normal gates, just based on a histogram plot...peis the baseline expression of the protein of interest. Created with biorender.com. The plot above...positive and negative populations for your marker of interest, a dot plot would serve you well. Percentage of...
  45. Antibodies 101: Flow Cytometry Controls

    Type
    Blog Post
    Published
    June 6, 2024, 1:50 p.m.
    ...using in the experiment except for one marker of interest. This allows you to more easily and accurately...schematic to easily determine where your cells of interest are (B).   Using FMO controls In an experiment...virtually identical to the antibody for your marker of interest. It will be from the same host species, have the...isotype antibody will not target your marker of interest. Using isotype controls An isotype sample is prepared...using in the experiment except for your marker of interest, and then add in your isotype control for that...positive cells are truly positive for your marker of interest (Fig. 3).   Figure 3: Isotype flow plot...
  46. Quick Guide to Working with Drosophila Part 3: Genome Engineering in Flies

    Type
    Blog Post
    Published
    July 28, 2017, 1:30 p.m.
    ...depending on your interests. You can look at something as basic as survival. For those interested in development...straightforward. Basically, you place your gene of interest in a plasmid and get the vector incorporated into...transgene. One such marker is the white gene, which restores eye color to fly lines where the endogenous white...fly and downstream experiments Once your gene of interest is cloned into a plasmid, you can send your plasmid...development, organs of interest, such as the intestines, can be dissected at various times throughout the lifespan...
  47. Form Your Own Peer Mentoring Group: A How-To Guide for Scientists

    Type
    Blog Post
    Published
    Feb. 18, 2014, 4:22 p.m.
    ...willing to step up and be matched with the many interested mentees. So I experimented with a group mentoring...available to go around. My advice has been to find 5 interested peers and form your own peer mentoring circle... Find 5-8 colleagues that you think might be interested and willing to commit to the group. The group...problem. For example, a group of people who are all interested in making a transition. Schedule your first meeting...and get organized. Discuss your general areas of interest and what you want to cover during the year. Suggest...Invite guests from a lab, career or industry of interest – learn about their career paths and get their...
  48. dTAG - You're it!

    Type
    Blog Post
    Published
    June 21, 2018, 2:06 p.m.
    ...compounds that enable selective removal of proteins-of-interest from the proteome. Rather than inhibiting protein...inhibitors including rapidly depleting a protein-of-interest, increasing target selectivity, overcoming resistance...functionality of your fusion chimeras For each protein-of-interest, it is important to determine which terminus can...C-terminal fusions and degradation in a cell line of interest prior to starting knock-in experiments. Test dTAG...degradation of the FKBP12F36V-fusion chimera of interest. In the cell lines we have evaluated to date, ... Cancer Institute. He is a chemical biologist interested in targeted protein degradation, and lead author...
  49. Popular Retroviral Vectors and Their Uses in Scientific Research

    Type
    Blog Post
    Published
    July 24, 2018, 12:51 p.m.
    ... your gene of interest pLenti-puro (Plasmid #39481) You can clone your gene of interest into this tetracycline...vectors that are used for gene regulation, gene of interest expression, knockout, and screening. There are...gamma-Retroviral Transfer Vectors   Expressing your gene of interest pMKO.1 GFP (Plasmid #10676) Retroviral vector ...vector for cloning and expressing your gene of interest with GFP expression.  Cloning and expressing RNAi pMKO...analysis of cells pre-treated with a compound of interest. Lentiviral vectors Popular Lentiviral Transfer...
  50. Mouse Modeling, Part 2: Breeding and Crossing Mice

    Type
    Blog Post
    Published
    Aug. 6, 2019, 12:55 p.m.
    ...primers to detect your targeting vector or gene of interest. 2. Breed your parental mice to generate F1 Once...parental mice were all homozygous for your genes of interest, your F1 mice will be carriers at those alleles...harbor homozygous alleles at both of your genes of interest. About 1 in 4 mice will be homozygous for the ...The shorter the distance between the two loci of interest on the chromosome, the less likely crossing over... with a strain that expresses a floxed gene of interest. Cre may be expressed globally (in every cell ... for expression of Cre, loxP, and your gene of interest. To ensure that the effects you see in your experiment...
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