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We narrowed to 662 results for: Clu

Showing: 81 - 120 of 662 results
  1. A Practical Guide to Optimizing AAV DIO and FLEx Vector Expression

    Type
    Blog Post
    Published
    Nov. 2, 2021, 1:15 p.m.
    ...high as 1-3%. In light of this finding, we now include guidance on the plasmid page of DIO/FLEx AAV vectors...you intend to use performs in your system. This includes a thorough testing of both the serotype and promoter... is reached you may obtain a false negative or conclude the viral vector is not working.  When using a...off-target expression that can confound your results.  Conclusion Using AAV vectors in your experiments requires...system. It is very rare for a methods section to include all of the variables that need to be accounted ...
  2. MassBioEd Career Exploration Day at Addgene

    Type
    Blog Post
    Published
    Nov. 13, 2015, 3:30 p.m.
    ... advice for the group of juniors and seniors, including that it’s never too early to start networking!...was the favorite part of their visit for many, including Natalie Reid who said “Seeing the bacteria on ... of programming for scientists!). Careers that include both science and business or programming were new...showed some highlights of his travels from 2015, including a great European photo slideshow from our UK team...
  3. Plasmids 101: Modular Cloning Applications and Kits

    Type
    Blog Post
    Published
    May 14, 2024, 1:15 p.m.
    ...2015). This kit offers a broad range of parts, including copy number machinery, chromosomal integration...YTK and adds several additional capabilities, including conditional gene expression, multiplexed CRISPR...chromosomal integration and gene expression, the system includes a toolkit to express recombinant proteins within...kit plus the plant-specific parts you‘ll need, including sub-cellular localization signals, plant markers...engineering. This is a specialized system with parts including site-specific recombinases, regulatory elements...
  4. Illuminating Choices: A Guide to Selecting Fluorescent Dyes and Ligands

    Type
    Blog Post
    Published
    March 21, 2024, 1:15 p.m.
    ... impact downstream outcomes of an experiment, including the accuracy and efficacy of findings. If you’...peptides and antibodies. Example applications of this include coupling to an antibody, whereby excitation of ...them under experimental conditions. Common issues include photobleaching, non-specific binding, and quenching...biotechnology. Recent examples of advancements include the Janelia Fluor(R) (JF) dyes developed by the...super-resolution applications. Other current advancements include work exploring far-red-emitting dyes in bacterial...
  5. Lentiviral CRISPR Libraries Enable Genome-Scale, Knockout Screening

    Type
    Blog Post
    Published
    Feb. 20, 2014, 4:57 p.m.
    ...selection screening. They and their colleagues including Feng Zhang used the GeCKO library to identify ...libraries developed by MIT's Tim Wang and colleagues, including David Sabatini and Eric Lander, comprise 73,171...different gene targets. These pooled libraries include enrichment against kinases, cell cycle proteins...designed to target a smaller set of genes and it includes more guides per gene. The Sabatini/Lander library...
  6. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ...building blocks including 14 different fluorescent proteins, 8 constitutive promoters, 2 includible promoters...Characteristics of the pHlash reporter protein include: H+ specific response cytoplasmic retention insensitivity...been used for a variety of experimental purposes including (1) single or multiple, constitutive or inducible...MXS-chaining were used in a variety of experiments including subcellular visualization of 6 different organelles...introduction of many different functional groups, including reactive groups for conjugation reactions, fluorescent... characteristics favorable for innocuous tags including high solubility, limited affinity for other proteins...mammalian cells with Broccoli Vegetable tags, including Spinach, Spinach2, and Broccoli, can benefit your...
  7. A Needle in a Base-Stack: Cas9 Structural Biology

    Type
    Blog Post
    Published
    June 4, 2024, 1:15 p.m.
    ... lobes, REC and NUC, and their subdomains. NUC includes the HNH and RuvC catalytic domains, as well as...as the CTD (also known as the PI), while REC includes most of the bridge helix. Created with BioRender.com...the cleavage domains, the recognition domains—including the CTD and the entire REC lobe—do not structurally...lobes. The guide RNA in this structure does not include stem loop 3, and guide RNA nucleotides 11-20 are...discoveries on this topic are still being made! Conclusion Finally, we can summarize the process from start...
  8. Plasmids 101: Walkthrough of Addgene’s Snapgene-Powered Quality Control Process

    Type
    Blog Post
    Published
    Feb. 1, 2018, 3:07 p.m.
    ...replication, and fluorescent proteins that are already included in Snapgene’s extensive database. Snapgene also...of open reading frames, which is often our first clue about where the gene of interest might be located...plasmids are difficult to sequence by NGS. These can include GC-rich and repetitive regions. These regions require... same features annotated in our plasmid maps, including our most popular primers and certain restriction...
  9. Fostering communication in remote collaborations

    Type
    Blog Post
    Published
    April 21, 2020, 1:14 p.m.
    ...stays on the same page. Ideally, these meetings include all collaborators, from the lab members who are...like Zoom or Google Hangouts is a great way to include researchers from different locations. Having virtual...to your collaborators. This helps everyone feel included in the project and accelerates the pace at which...and morale. Especially when your collaboration includes scientists working in different time zones, it...
  10. Plasmids 101: What is a plasmid?

    Type
    Blog Post
    Published
    April 2, 2020, 6:17 p.m.
    ... and copy number of the plasmid) and typically include a gene that is advantageous for survival, such ...range of applications. Some common plasmid types include cloning plasmids, expression plasmids, gene knock-down...the many things that plasmids can be used to do include: Produce large amounts of a protein so that scientists...the lab. Addgene’s Molecular Biology Reference includes information about molecular cloning, how to choose...
  11. The Open Repository of CRISPR Screens: CRISPR Screen Data in One Place

    Type
    Blog Post
    Published
    Jan. 21, 2020, 2:30 p.m.
    ... Now you’re wondering if your favorite gene is included in other CRISPR screens and whether that data ... each screen is captured by BioGRID curators, including the cell line/tissue type, enzyme system, sgRNA...-depth walk through of how to use ORCS:     Include your CRISPR screen data in ORCS  Researchers who...who wish to have their CRISPR screen data included in the BioGRID ORCS CRISPR database are encouraged ...
  12. A Tour of Addgene's Most Popular Pooled Libraries

    Type
    Blog Post
    Published
    Nov. 19, 2025, 2:15 p.m.
    ... collection of sgRNAs, but they may or may not include CRISPR machinery (which can be supplied separately...CRISPR pooled libraries! Addgene’s collection also includes a base editing sensor library, a base editing ...this library of all human transcription factors, including splice isoforms, to allow comprehensive screening...conducted with yeast. Created with BioRender.com. Conclusion Have we whetted your appetite for pooled libraries...
  13. Using Addgene's New Viral Service for Your Research

    Type
    Blog Post
    Published
    Nov. 17, 2016, 3:30 p.m.
    ...distributing lentivirus (with many CRISPR tools included among the preps that are currently available) ... AAV preparations have worked well in my lab, including in applications where we have delivered them in...The blog provides tips for working with viruses including advice on how to titer lentiviral preps, troubleshoot...on each viral prep’s specific material page and includes western blots as well as other expression data...
  14. New and Upcoming Viral Vectors - December 2019

    Type
    Blog Post
    Published
    Dec. 19, 2019, 2:40 p.m.
    ... browse our entire AAV inventory. Our new AAVs include: Optogenetics AAV Control AAV Biosensor AAV And...H134R) plasmids from Karl Deisseroth’s lab, which includes pAAV-hSyn Con/Fon hChR2(H134R)-EYFP that is both...have expanded our calcium sensor collection to include our first Flp-dependent GCaMP, AAV8-105714. Several... for the calcium sensor jGCaMP7 from Janelia, including three jGCaMP7 plasmids now packaged in AAVrg. ...
  15. Plasmids 101: Gram Negative and Positive Bacteria

    Type
    Blog Post
    Published
    Aug. 2, 2022, 1:15 p.m.
    ...the ins and outs of this classification system, including its history, biology, and usages in the lab. History...peptidoglycan membrane. Common gram positive bacteria include staphylococci and streptococci. Gram negative bacteria... lipid membrane. Common gram negative bacteria include salmonella and E. coli. Because of their thicker... For more specific procedural instructions, including timing, preparing the smear, and mixing the stains...
  16. Addgene-Seeding Labs plasmid grant round 3: microbial drug resistance and biofilms, antidiabetic plant components, visualizing brain injury - and a glowing robot fish

    Type
    Blog Post
    Published
    Nov. 27, 2018, 2 p.m.
    ...span four continents and research diverse topics including microbiology, brain injury, drug discovery, and...PZA-resistance by using different approaches, including CRISPR and recombination-mediated genetic engineering...studied various aspects extreme life on earth including extremophile microorganisms, biomarkers, and recently...fluorescent signals from the sensor, and send a signal including its position in the river back to the user.   ...
  17. Synthetic Photobiology: Optogenetics for E. coli

    Type
    Blog Post
    Published
    Sept. 8, 2015, 2:30 p.m.
    ...biological processes is highly useful in other fields, including synthetic biology. Addgene depositors Christopher...effectors are suboptimal for a number of reasons, including their potential toxicity and cross-reactivity ...level of “output” signal, was only about 10-fold, precluding the study of gene expression at very high or ...they can be used with many types of proteins, including Cas9 and dCas9-transcription factors, for which...
  18. GCE4All: Making Genetic Code Expansion Accessible

    Type
    Blog Post
    Published
    June 15, 2023, 1:15 p.m.
    ...GCE, each component of the experiment system (including media, cell type, and growth temperature) may ...to use a protocol that you’ll have to rework to include reagents accessible to your lab. The solution GCE...is for recombinant expression of phosphoserine-including proteins in E. coli (Zhu et al., 2022). It uses... While they’ve shortlisted several protocols, including their phosphoserine ncAA protocol, to optimize...
  19. The Many Reasons for Irreproducible Research- and a Vaccine to Eradicate It

    Type
    Blog Post
    Published
    Jan. 30, 2020, 2:15 p.m.
    ...Cancer Biology, where reported methods may not include how many tests were conducted on how the results...reporting guidelines can also help remind us to include all of the essential details. These items rarely...right before data collection starts, and should include a specific plan for how data will be collected,...and reduced bias in scientific research. These include policies for publishers and funders in the Transparency...
  20. Antibodies 101: Isotypes

    Type
    Blog Post
    Published
    Oct. 19, 2021, 1:15 p.m.
    ...controls are used in antibody-based applications including flow cytometry, immunohistochemistry, immunocytochemistry...recombination. Heavy chain constant genes are clustered together downstream of the variable region gene...they are the first constant domain genes in the cluster. However, when B cells switch to expressing a different... genes in the heavy-chain constant domain gene cluster. DNA recombination can delete intervening heavy-chain...
  21. Plasmids 101: Transformation, Transduction, Bacterial Conjugation, and Transfection

    Type
    Blog Post
    Published
    June 25, 2019, 12:54 p.m.
    ...ways foreign DNA can be introduced into cells including transformation, transduction, conjugation, and...often comes from adjacent lysed bacteria and can include plasmid DNA or fragmented DNA released into the...Addgene. For more information on viral vectors, including transduction download our Viral Vectors 101 eBook...into a eukaryotic cell through non-viral methods including both chemical and physical methods in the lab....
  22. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    Published
    March 13, 2014, 4:08 p.m.
    .... A quick search for "CRISPR", short-hand for Clustered Regularly Interspaced Short Palindromic Repeats...few references for the double nickase system, including one from the Zhang group. Q2: Should I add the...off-target effects depends on a number of factors, including: how closely homologous the off-target sites are.... Thank you, Le! This blog post was updated to include all FAQs from Le Cong on June 24, 2025 by Alyssa...of isogenic pluripotent stem cells differing exclusively at two early onset Parkinson Point mutations....
  23. Gendered Innovations: Why Does Sex of the Cell Matter?

    Type
    Blog Post
    Published
    July 21, 2016, 2:30 p.m.
    .... In the case of stem cells, these factors may include cell type, the disease being treated, and other...immunological, and environmental factors. How to include sex in experimental design Recognizing the importance...Institutes of Health (NIH) now requires that sex be included as a biological variable in all NIH-funded research...differences in effects on the sexes come from, one clue or potential place to start research is by considering...
  24. Teaching an Old DOG New Tricks: Controlling Protein Activity with GFP

    Type
    Blog Post
    Published
    Nov. 24, 2015, 3:30 p.m.
    ...also be designed with other DNA-binding domains, including the commonly used LexA and rTetR systems such ...could be delivered throughout the nervous system, including the motor cortex, cerebellum, and spinal cord....easily adaptable to neuroscience applications, including optogenetics, and they should make it much easier...Other proteins may also be utliized as scaffolds, including the set of red fluorescent proteins. The T-DOGGs...
  25. Working with Nuclear Receptors

    Type
    Blog Post
    Published
    July 15, 2014, 4:03 p.m.
    ...fat-soluble hormones, vitamins, and dietary lipids. Included in this family are receptors for endocrine steroids... to treat a multitude of therapeutic indices, including hypertension, cancer, diabetes, cardiovascular...these key regulatory molecules, and has provided clues to their previously uncharacterized cellular roles...interface, expanded numbers of curated molecules, including 400 or so coregulators, and a greatly expanded...
  26. Split Fluorescent Proteins for Studying Protein-Protein Interactions

    Type
    Blog Post
    Published
    May 3, 2022, 1:15 p.m.
    ...contains both fragments of split mVenus (aa 155), includes I152L in N-terminal fragment An enhanced recombinant...Dan Mulvihill mVenus Split mVenus (aa 155), includes I152L in N-terminal fragment Constant rate of ...  When designing experiments, it’s important to include proper controls to assess the behavior of the split...Biosensors Collection Split Luciferase systems, including NanoLuc®, DULIP, LuTHy Other split protein tools...
  27. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    .... This tool-kit includes an array of FPs as well as additional useful tags, including 3xFLAG epitopes,... chromatin. A fluorescent protein can still be included for visualization purposes, but the key component...green. This system can be used in many cell types including endothelial cell-pericyte, neuron-astrocyte, and...
  28. Adeno Associated Virus (AAV) for Cell and Gene Therapy

    Type
    Blog Post
    Published
    Nov. 7, 2017, 1:59 p.m.
    ... delivery technologies have been investigated including lentiviruses, adenovirus, and inorganic delivery...additional safety benefits: they lack all viral genes, including those that are responsible for integration into...capable of infecting a wide range of cell types including but not limited to muscle, liver, and brain cells...clinical trials have been directed at diseases including but not limited to hemophilia B, LPL deficiency...
  29. Savvy Advocates Needed to Navigate a Scientific Enterprise in Flux

    Type
    Blog Post
    Published
    Sept. 13, 2016, 2:30 p.m.
    ...for affecting change. On Friday, the symposium includes a panel discussion and keynote by former congressman...implementation and compliance for the FLSA changes, including finding money in already tight lab budgets and...their advocacy skills. Friday’s symposium will include a discussion on effective advocacy strategies on... on various levels, with panelists including: Kate Stoll, PhD - Senior Policy Advisor MIT Washington ...
  30. Twenty Years of Addgene Sharing: CRISPR

    Type
    Blog Post
    Published
    April 18, 2024, 1:15 p.m.
    ...Over the years, Addgene’s repository has grown to include many CRISPR tools.  Distributing and depositing...this tell us? Well, it’s hard to draw any exact conclusions, but it certainly suggests that Addgene depositors...approximately 104 plasmids shipped per working day, including appropriate MTAs and customs forms. Of course,...repository have been cited a total of 23,006 times, including 14,677 unique citations.  CRISPR is a story that...
  31. Antibodies 101: Conventional vs Spectral Flow Cytometry

    Type
    Blog Post
    Published
    Aug. 3, 2023, 1:15 p.m.
    ...unstained flow controls). Spectral flow cytometers include a tool called “autofluorescence extraction” which...various tissue types varies, it is critical to include an unstained sample for each tissue type you are... the expression levels of the markers you are including in your panel. Highly expressed markers should...during unmixing. Additionally, it is critical to include unstained beads or cells within your reference ...
  32. Course-Based Undergraduate Research Experiences (CUREs)

    Type
    Blog Post
    Published
    Feb. 9, 2023, 2:15 p.m.
    ...year’s Nobel Prize in Chemistry, he joined an elite club, becoming just the fifth repeat Nobel Prize winner...proposed as a mechanism for increasing diversity and inclusion in STEM disciplines (Bangera & Brownell, 2014;...promote professional success (many of my students include their in-class research experience on their resumes...experiences can make scientific research more inclusive. CBE Life Sciences Education. 13(4):602-606. Brian...
  33. Better Dyeing Through Chemistry & Small Molecule Fluorophores

    Type
    Blog Post
    Published
    Sept. 8, 2016, 2:30 p.m.
    ...proteins have replicated many of the properties once exclusive to small-molecules: red-shifted spectra, ion sensitivity... have been developed based off of this concept include: Self-labeling tags (e.g., SNAP-tag, HaloTag, ...innovative labeling strategies, several groups—including mine—have been revisiting the old chemistry of...and contain polar groups (Figure 2b), which can preclude their use inside living cells. We recently discovered...
  34. The Importance of a Fun Workplace: Company Culture at Addgene

    Type
    Blog Post
    Published
    Sept. 3, 2015, 2:30 p.m.
    ...beer. Ha! We had over 60 people join the fun - including a lot of future Addgenies as shown in the photo...employees. We now have a team of three (myself included) that plan big company events and fun things to...people you spend 40+ hours with each week. In conclusion - get out there any have some fun together! Laura...at all really! We've had plenty of events that included a simple corn hole set and a cooler. Chances are...
  35. Using AAV for Neuronal Tracing

    Type
    Blog Post
    Published
    Aug. 9, 2018, 1:04 p.m.
    ...episodic memory, a special type of memory which includes autobiographical events (see Jin & Maren, 2015...visualization of the morphology of individual neurons, including dendritic and axonal extensions and, most importantly...some engineering, RABV and HSV, but also others including pseudorabies virus type 1, vesicular stomatitis... Addgene's AAV guide)  Commonly used serotypes include AAV1 – 9, with most of these serotypes capable ...future developments in the field of AAV vectors. Conclusion An ideal comprehensive toolset for neuronal tracing...
  36. Fluorescent Proteins 101: Aptamer Fluorophores

    Type
    Blog Post
    Published
    April 11, 2017, 2:30 p.m.
    ... flexibility is their broad range of targets, including proteins, peptides, amino acids, drugs, metal ...biosensors are used in a variety of applications, including detection of environmental pollutants, drug discovery...aptamers for use in many entirely new applications including aptamer based fluorescent biosensors. Aptabeacons...-based instead of protein-based fluorophores, including: Environments with higher temperatures, since...
  37. How to Write a Scientific Review Article

    Type
    Blog Post
    Published
    Feb. 16, 2017, 3:30 p.m.
    ...you start reading, there will be a temptation to include every piece of information that was ever published...figures/schematics or tables. And don’t forget to include citations so that people can go back and read the...studies that reported mutations in that protein (including how frequently a mutation was found and the size...doesn’t have to be revolutionary, but you could include a few comments on where you think the field is ...
  38. Plasmids 101: Codon usage bias

    Type
    Blog Post
    Published
    Sept. 27, 2018, 1:09 p.m.
    ...completely understood, but some possible reasons include: Metabolic pressures - it takes cellular resources...when designing a full gene. A non-exhaustive list includes: Codon abundance relative to cognate tRNA abundance...insoluble, nonfunctional globs of protein known as inclusion bodies that will generally segregate with the ...assay to make sure your protein isn’t forming inclusion bodies and is folding properly. References 1...
  39. Analyzing CRISPR Editing Results with ICE from Synthego

    Type
    Blog Post
    Published
    May 8, 2018, 1 p.m.
    ...the CRISPR workflow. For a multiplex sample, ICE includes visual representations of all detected edit types...indel.   For a complete guide to ICE analysis, including detailed explanation and examples, read the paper...of the DNA-targeting region of the guide RNA, excluding the PAM sequence. PAM Sequence - The Protospacer...stack Genome Engineering Solutions, which also includes our CRISPR knockout guide design tool, guide validation...
  40. Antibodies 101: Reading a Flow Plot

    Type
    Blog Post
    Published
    Feb. 6, 2024, 3:13 p.m.
    ...an X,Y axis to generate a dot plot (Figure 1). Clustered events are called a population.                           ..., like a box, ellipse, or circle, drawn around clusters to define populations. This shape is called a ...diameter and volume of the cell, thus allowing the exclusion of doublets and debris. The side scatter roughly...show frequency of events, instead of relying on clustered dots. In a contour plot, each line contains the...
Showing: 81 - 120 of 662 results