Skip to main content
Addgene

We narrowed to 798 results for: OMP;

Showing: 201 - 220 of 798 results
  1. How to Keep a Lab Notebook for Bioinformatic Analyses

    Type
    Blog Post
    Published
    June 2, 2016, 2:30 p.m.
    ...track of computation work comes with new sets of challenges. One challenge with computational analyses... of biologists are finding themselves using computational approaches to analyze large data sets (myself...RNA-seq analysis. I had never interacted with a computer at the command line, and so was really starting...especially since you’ll want to dig in to the computation, but they will serve you well as you perform ...directory: A directory is a file system in the computer and is just another name for a folder. For instance...
  2. Transferable Skills Guide: Public Speaking

    Type
    Blog Post
    Published
    April 20, 2023, 4 p.m.
    ...presentation, lost in a sea of data, my mind went completely blank. After several seconds of truly panicked...honest, if my paper hadn’t been ridiculously more complex than the one before it, I don’t think I would have... panicked state, only option one would let me accomplish my goal.   As a scientist, public speaking isn't...dumpster noises were just last week!  Nerves It’s completely normal to be anxious, nervous, and/or apprehensive... in its most difficult form. You’re presenting complex data, to a group of peers who are there to provide...conferences, or even just provide quick updates during a company meeting increases visibility of your work, opens...
  3. Choosing the B(right)est Fluorescent Protein: Aggregation Tendency

    Type
    Blog Post
    Published
    June 15, 2017, 2:30 p.m.
    ...based on size. Whether higher molecular weight complexes are detected will depend on the homodimer affinity...During the experiment, the solution is diluted, complicating the interpretation. Because of this, these methods...fluorescent protein is monomeric without the accompanying data to prove it is worthless. The OSER assay...and biological properties of new fusions can be compared with mEGFP or mTurquoise2, which are established...that you will be using. If you do a head-to-head comparison right, it will be valuable information for the... are engineered can be shared to simplify the comparison by others. Together, we can build a valuable ...
  4. Choosing the B(right)est Fluorescent Protein: Photostability

    Type
    Blog Post
    Published
    June 8, 2017, 2:30 p.m.
    ...us to the key question: what is the best way to compare the photostability of different fluorescent proteins...measurements for different fluorescent proteins and by comparing how the fluorescence intensity changes over time...photostability of the fluorescent proteins can be directly compared. An example of a photostability measurement of...fluorescent protein can be identified by a head-to-head comparison of several fluorescent proteins of the same spectral.... In figure 1 we provide an example of such a comparison between cyan fluorescent proteins using widefield... power, the photostability of the variants is comparable (lower panel of figure 1). To avoid changes in...
  5. CRISPRainbow and Genome Visualization

    Type
    Blog Post
    Published
    Feb. 28, 2017, 3:30 p.m.
    ...specific chromosome. This image represents the composite of fluorescent measurements from red, blue, and...modified GFP-dCas9 and the gRNA scaffold to enhance complex assembly, thereby decreasing the amount of background... labeling efficiency was similar to that of a comparable FISH method. Importantly, they did not observe...with the previously established physical map. In comparing pairs of targets ~2 Mbp apart, they noticed that...that they could evaluate the degree of chromatin compaction even for this small distance! To the authors’...CRISPRainbow generates 6 unique colors and a white composite. gRNAs with two identical hairpin binding domains...
  6. Plasmids 101: CcdB - The Toxic Key to Efficient Cloning

    Type
    Blog Post
    Published
    Dec. 8, 2016, 3:30 p.m.
    ...specific components that are key to the cloning reaction. Understanding the specific components is essential...take up your insert. But exactly how does ccdB accomplish this? Let’s start with a brief history of the...system contains ccdB. A successful insertion will completely replace ccdB with the investigator’s insert of...interest.   CcdB resistant E. coli strains complete the system But ccdB alone isn’t the only key to...protein involves poisoning of DNA-topoisomerase II complexes.” J Mol Biol. 1992 Aug 5;226(3):735-45. PubMed...
  7. Celebrating 15 Years of Scientific Sharing

    Type
    Blog Post
    Published
    Jan. 14, 2019, 2:08 p.m.
    .... Addgene is now as much a tech company as it is a reagent company. I used to have to worry about this...remarkably so for a 90 person company. We were and remain ahead of most companies in creating a welcoming, ...often focus on the excitement of what we are accomplishing and what more we might do. I am grateful every...innovative thinking, and openness to team work.   Company culture Once in awhile I worry a very little ...
  8. Seven Tips for Using LinkedIn as a Scientist

    Type
    Blog Post
    Published
    Oct. 1, 2019, 1:21 p.m.
    ... and trolls. People don’t like to connect with complete strangers as it borders on my first rule of networking...’m asked a lot about requesting connections to complete strangers for informational interviews. Many have...option is in the “More…” menu. You can also follow companies and organizations to see their news and job postings...interviews.  Pro tip: You can learn a lot from the company LinkedIn page. This can include news, inclusion...It’s also a great way to keep track of past accomplishments. Follow all the rules of good resume writing...writing. Include examples of concrete accomplishments in both the technical and “plus skills” areas. Include...
  9. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    Published
    Sept. 24, 2019, 12:55 p.m.
    ...and the efficacy of your competent cells (when they get old, they lose competency). If all the above is ... be sure that the buffers and temperature are compatible between the different enzymes. Always check the...source (i.e. primer3) or provided by the major companies selling PCR reagents. Nowadays commercial polymerases...a general rule, try to use an excess of insert compared to the backbone plasmid; a starting point could...plasmid. Many vectors contain sequences that are complementary to standard sequencing primers. If not, design...
  10. Pairing CombiGEM and CRISPR for Combinatorial Genetic Screening

    Type
    Blog Post
    Published
    April 12, 2016, 2:30 p.m.
    ...was contributed by guest blogger Alan Wong. The complexity of biological systems can hinder our attempts...simple tool that allowed us to rapidly decode the complexity? The CombiGEM-CRISPR technology was developed...of providing an easy-to-use tool to analyze the complex combinatorial genetic networks underlying your ...mapping the combinatorial genetics that underlie complex regulation in biological systems. The CombiGEM ...new technologies to interrogate and understand complex biological systems. He can be contacted at aslw...transcriptional activation by an engineered CRISPR-Cas9 complex." Nature (2014). PubMed PMID: 25494202. PubMed ...
  11. CRISPR Meets Synthetic Biology: A Conversation with MIT’s Christopher Voigt

    Type
    Blog Post
    Published
    April 22, 2015, 2:06 p.m.
    ... do as genetic circuits become larger and more complex? Voigt: If you look at all the products of biology... on genes at different times. It requires more complex synthetic networks. Addgene: What hurdles did you... perspective and you can layer them for more complicated functions. Those things are easy with CRISPR..... There haven’t been enough genetic parts for complexity. We have characterized almost 600 terminators...of a cell. The objective is to give people the complete toolbox for taking on very large genetic engineering...just using what biology has given us. Wood is a complicated material and we can access it, but we are stuck...
  12. A Look at Addgene's QC Process

    Type
    Blog Post
    Published
    May 6, 2025, 1:15 p.m.
    ... to stop functioning properly or be something completely different than what was originally intended. ...tags, promoters, and other critical functional components. Fun fact! Some older plasmids in our collection...each of their plasmids, from descriptions of key components of the plasmids to partial, full, or annotated...Addgene receives deposited plasmids, they undergo complete plasmid sequencing using an in-house Illumina ...Addgene. The assembled plasmid sequence is then compared to the information provided by the depositor. ... sequence is not available, QC scientists will compare the NGS results to the plasmid information, other...
  13. Plasmids 101: The Wide World of Natural Plasmids

    Type
    Blog Post
    Published
    Oct. 8, 2024, 1:15 p.m.
    ...that allow their host organisms to thrive in competitive environments. The genes encoding these functions...triumph over your neighbors is to eliminate the competition, and Penicillium isn’t the only organism that... are also less aggressive ways to survive in competitive environments — like by living where no one else...to be active only in the presence of the target compound. These systems are a gold mine of parts for synthetic...Shareck et al., 2004). Plasmid categorization is complex Plasmid classification has shifted over the years...necessarily reflect genetic relationships or plasmid incompatibility. Plasmids may also have more than one function...
  14. Progress Towards a PAM-Free CRISPR

    Type
    Blog Post
    Published
    March 7, 2024, 2:39 p.m.
    ...significant amount of flexibility compared to a strict single-compatibility sequence like NGG. Nonetheless...NG, a rationally engineered Cas9 with NG PAM compatibility, as the name implies (Nishimasu et. al, 2018...know and love about Cas9, but with broader PAM compatibility. This alternative PAM requirement adds a significant...PAMs and is capable of editing at frequencies comparable to SpCas9. SpRY can also edit NYN PAMs, but with... Ai C, Hu J. In-depth assessment of the PAM compatibility and editing activities of Cas9 variants. Nucleic...
  15. Viral Vectors 101: Calcium Sensors

    Type
    Blog Post
    Published
    Aug. 10, 2023, 1 p.m.
    ...blood clotting, and as we all know, a structural component of bones and teeth. It is an enzyme co-factor,..., a neuron subtype) and specific subcellular compartments for measurements. All of the sensors discussed...calcium concentrations in different subcellular compartments can vary greatly. Additionally, the calcium ...susceptible to artifacts and pH interference, and comparison between experiments can be more difficult due...GCaMP6 only) or mammalian cell expression, and compatible with constitutive or Cre-dependent expression...Genetically encoded calcium indicators to probe complex brain circuit dynamics in vivo. Neuroscience Research...
  16. Open Resources and Plasmid Tools For Studying C. elegans

    Type
    Blog Post
    Published
    July 18, 2019, 12:55 p.m.
    ...science and collaboration. The field already has comprehensive reference pages and curated databases for scientists... (CeNGEN) The CeNGEN goal is to establish a comprehensive gene expression atlas of every C.elegans  neuron...that is creating the “first virtual organism in a computer.” This project has produced various resources ...four-dimensional contrast interference (DIC) microscopy and computer imaging processing. The combination of these methods...methods provides unique opportunities to develop computational methods to better understand animal development...Hammarlund, Marc, et al. "The CeNGEN Project: The Complete Gene Expression Map of an Entire Nervous System...
  17. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    Published
    Nov. 19, 2015, 3:30 p.m.
    ...remodeling. Chromatin is a complex of DNA and histone proteins that compacts cellular DNA into chromosomes...in the compacted region and results in a loss of gene expression. In this way, genes in compacted regions...and tightly bound DNA is to histones, the more compacted it becomes. This prevents the cellular machinery...have huge impacts in the way we study and treat complex or multifactorial diseases, enabling faster diagnosis...
  18. How to Deposit Your Plasmids with Addgene

    Type
    Blog Post
    Published
    Feb. 27, 2024, 2:15 p.m.
    ...information directly into the file. Email the completed spreadsheet to [email protected] along with ...used to knockdown expression of mRNAs with complementarity to the shRNA sequence. Empty backbone A plasmid...plasmid data in the pages described below. You can complete these pages sequentially by entering the appropriate...the links at the top of the page. Figure 11: A completed plasmid page for review before submission. Once... right of each data entry page. Once you have completed the data entry process for all of the plasmids...Figure 13: Click the "Submit Deposit" button to complete the data entry. Clicking the "Submit Deposit" ...third party rights holders. Once this process is complete, you will receive a Deposit Confirmation email...
  19. Hot Plasmids: Summer 2025

    Type
    Blog Post
    Published
    Aug. 28, 2025, 1:15 p.m.
    ...variety of constructs for visualizing cellular components (nucleus, endosomes, lysosome, golgi, ER, inhibitory...inhibitory synapses, and cytoskeleton components) and in a FRET-based biosensor for cAMP dynamics. The ...especially among plant biologists, due to their compact size and ability to generate heritable edits (learn...third of the size of Cas9). Figure 2: Comparison of TnpB (A) and Cas9 (B) genome editors. Effector...mScarlet reporters, so you can choose a color compatible with the other tools in your experiment. These... synapses; however, its modular design allows components to be swapped out, potentially broadening its...
  20. PhD Applications After COVID

    Type
    Blog Post
    Published
    Jan. 5, 2023, 2:15 p.m.
    ...know that this process only became even more complicated with COVID-19 and standards for hybrid, virtual...without the financial and logistical stress that accompanies traveling for campus visits. This is definitely...where the PhD application cycle becomes much more complex. “How do I reach out to potential mentors?” “Where...very valid questions, and often make an already complicated process even more difficult. I’ve learned that...to be incredibly useful, as it gives a more comprehensive idea of that advisor’s research interests which... for the interview. Having notes close to your computer with things you want to highlight in the interview...
Showing: 201 - 220 of 798 results