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Showing: 741 - 760 of 1138 results
  1. Plasmids 101: E. coli Strains for Protein Expression

    Type
    Blog Post
    ...IPTG. T7 RNAP is then available to transcribe the gene of interest from a T7 promoter on the plasmid. Many...::T7 gene1 [lon] ompT gal sulA11 R(mcr-73::miniTn10--TetS)2 [dcm] R(zgb-210::Tn10--TetS) General protein...cytosine within a particular sequence. Browse Addgene's curated list of Bacterial Expression Systems Table...DE3) F- ompT lon hsdSB (rB- mB-) gal dcm (DE3) General protein expression BL21 (DE3) pLysS* Chloramphenicol...ompT lon hsdSB (rB- mB-) gal dcm rne131 (DE3) General expression; not recommended for toxic proteins ...lon hsdSB (rB- mB-) gal dcm araB::T7RNAP-tetA General protein expression  BLR (DE3) Tetracycline RecA-deficient...overexpression? The strains described above should generate sufficient expression levels for most purposes...
  2. Validated gRNA Sequences

    Type
    Collection
    ...accomplish. Validated gRNA Sequence Datatable Target Gene Target Species Target Sequence Plasmid ID Application...cut S. pyogenes 26028531 Huangfu OCT4 H. sapiens multiple, see article 69537 activate S. pyogenes 26352799...cut S. pyogenes 24870050 Goncalves AAVS1 H. sapiens GGGGCCACTAGGGACAGGAT 41818 cut S. pyogenes 23287722... cut S. pyogenes 24336569 Sabatini AAVS1 H. sapiens GGGGCCACTAGGGACAGGAT 70661 cut S. pyogenes 26472758...cut S. pyogenes 23287722 Church actII-orf4 S. coelicolor ATTACCAGGGACCGGAGTTC 62552 cut S. pyogenes 25739462...cut S. pyogenes 25352017 Zaratiegui ade6-M210 S. pombe TCTATTGTTCAGATGCTTCG 52226 cut S. pyogenes 25352017... 52225 cut S. pyogenes 25352017 Zaratiegui Alk and Eml M. musculus 64071 cut S. pyogenes 25337876 Ventura...
  3. Antibodies 101: Beyond Surface Labeling

    Type
    Blog Post
    ...achieved through, for example, a previously induced gene knockout. Besides amine- and DNA-binding dyes, nucleoside... on Addgene.org Ready-to-use recombinant antibodies at Addgene Addgene's Antibody Guide Addgene's Antibody... combines a marker with a signal. For clarity, Addgene uses 'labeling' to refer to antibodies and 'staining...Find streptavidin plasmids and biotin plasmids at Addgene!     Figure 1: Indirect detection of target...signal. Dump gating When you are working with heterogeneous cell mixes, like bulk lympho-/splenocytes, you...Antibody Plasmid Collection Resources on the Addgene blog Antibodies 101: Reading a Flow Plot Antibodies...
  4. Fluorescent Proteins 101: GFP Fusion Proteins - Making the Right Connection

    Type
    Blog Post
    ...mediated HDR) enables the tagging of endogenous genes close to native expression levels. However, it is...chimera are encoded by DNA. Since researchers can generate almost any DNA sequence in the way that they like...proteins is relatively straightforward. However, generating a fusion while keeping all of the native properties...challenging. In this blog I discuss strategies to generate fusion proteins and highlight some aspects of ... from Aequorea victoria and its variants are genetically encoded fluorescent probes. One of the limitations...restriction enzymes in the multiple cloning site for generating fusions. For the POI-fluorescent protein fusions...sufficient. For the fluorescent protein-POI fusions, we generate straight fusions, without any linker. When both...
  5. Antibodies 101: The Basics of Western Blotting

    Type
    Blog Post
    ...do not naturally express the protein or have had gene expression knocked down or knocked out. If you are...antibodies Resources on Addgene.org Find written and video protocols Visit Addgene's antibodies collection...plasmid encoding your protein of interest from Addgene, transfected it into your target cells, now what...wet, semi-dry, and dry but all follow the same general principle where the gel and membrane are “sandwiched...may even find plasmids encoding antibodies from Addgene that you can make on your own.  To narrow your ... found this blog helpful be sure to check out Addgene’s blog for overviews of other antibody topics. ...10.4103/1947-2714.100998 Additional resources on the Addgene blog Find other tips and tricks for molecular ...
  6. Antibodies 101: Introduction to Antibodies

    Type
    Blog Post
    ...which come from naturally-occurring immunoglobulin genes, recombinant antibodies are plasmid-based. Their... What is an Antibody? Resources on Addgene.org: Browse Addgene’s Antibody Plasmid Collection Find antibodies...cascades that clear these infections. Anything that generates an antibody response in the immune system is referred...in the DNA of the hybridoma can occur, known as genetic drift, meaning that over time, the antibody you...monoclonal antibodies, recombinant antibodies are a homogeneous population. However, unlike monoclonal antibodies...antigen binding, the variable regions alone can be generated as a fusion protein. An ScFv is made up of the...detect the presence of a single protein from a heterogeneous mixture - for example, cell lysate or media ...
  7. Cancer and the Immune System: Deciphering the Relationship

    Type
    Blog Post
    ... 18 lung cancer patients. This study used CRISPR gene editing to knockout PD-1 on immune cells harvested... Cell heterogeneity Tumors are composed of a wide variety of cell types. This cell heterogeneity is an...cells that escape the elimination stage acquire genetic alterations and alter cell-surface antigen production... promotes the production of VEGF to increase angiogenesis around the tumor. This in turn regulates the... immunotherapy. Using activated DCs ex vivo to generate cytotoxic effector T cells, and targeting specific...played a huge role. For instance, researchers are genetically altering tumor cells and immune cells to knockout...element of successful tumor progression. A tumor’s genetic composition is constantly in flux and is dependent...
  8. Antibody Validation for Flow Cytometry

    Type
    Blog Post
    ...procedure and application to the major ALS/FTD disease gene C9ORF72. eLife, 8, e48363. https://doi.org/10.7554...101: Validation Resources on addgene.org Addgene's Antibody Guide Addgene's Antibody Protocols... outlined below. Knockout cell line approach Genetic knockout-based validation can conclusively prove...you are working with cells that are amenable to genetic knockout, this represents a very robust approach...to start with a screening procedure in easily genetically modified cell types (top). The specific approach...10.1038/s41598-019-55133-7 More resources from the Addgene blog Introduction to Gating in Flow Cytometry Antibodies...
  9. A Needle in a Base-Stack: Cas9 Structural Biology

    Type
    Blog Post
    ...transition from weak, random binding to precision gene editing requires three major steps: RNA loading,...resources on addgene.org  Addgene's CRISPR Guide Addgene's CRISPR 101 eBook  Resources on the Addgene blog Components...from Streptococcus pyogenes.   Figure 2:  Crystal structure of S. pyogenes Cas9 in the apo state...    Figure 3: Crystal structure of S. pyogenes Cas9 bound to guide RNA (PDB ID 4ZT0), shown opaque...sequence isn’t in place yet.     Figure 4: S. pyogenes Cas9 in the apo state (PDB ID 4CMP, top) compared... residues in the CTD can get cozy with DNA. S. pyogenes Cas9 recognizes the PAM sequence 5’-NGG-3’, where...complementary strand is mismatched.   Figure 5: S. pyogenes Cas9 bound to guide RNA and target DNA (PDB ID...
  10. The CRISPR Software Matchmaker: A New Tool for Choosing the Best CRISPR Software for Your Needs

    Type
    Blog Post
    ...of highly active sgRNAs for CRISPR-Cas9-mediated gene inactivation." Nature biotechnology (2014). PubMed...to select a tool based on your project and not general opinion. I could spend a lot of time running through... Online tools dominate the software space but generally rely on less powerful algorithms to detect off-targets...tools available mostly work on any computer but generally require working knowledge of the command line ...tools require some kind of data input in order to generate results. While different types of input are more...focus on specific organisms. For this reason I generally recommend that laboratories that have already ...PubMed Central PMCID: PMC4262738. Resources at Addgene Get Tips on How to Design a gRNA Read Our CRISPR...
  11. Educational Resources

    Type
    Guide
    ...content on subjects such as: CRISPR Chemogenetics Optogenetics Genetic Code Expansion...Overview of Addgene's educational resources, including eBooks, science guides, videos, and protocols ... content , including protocols, tips on using Addgene’s materials, and career advice. Playlists include...Protocols Careers How-to Blog Read about plasmids in Addgene’s repository , and related molecular biology techniques...Concentrations for Bacterial Selection What is a Plasmid? Genetic Code Strain Information Molecular Cloning Techniques...
  12. Brain Initiative Collection

    Type
    Collection
    ...associated with Addgene materials. Plasmids ID Plasmid Description PI Viral Preps Addgene distributes ready-to-use...these antibodies are available at Addgene. AAV Viral Service . Addgene provides a viral service to help...the revolutionary dynamic picture of the brain generated through this effort will provide novel ways to...enables single cell, single millisecond resolution optogenetics. Human Synapsin (hSynapsin) promoter Edward ...enables single cell, single millisecond resolution optogenetics. Cre-dependent virus Edward Boyden 108422-AAV5...Hillel Adesnik 111066-AAV1 pAAV-hSyn-dLight1.1 To generate Adeno-Associated viruses for expression of dLight1.1...promoter Lin Tian 111067-AAV1 pAAV-CAG-dLight1.1 To generate Adeno-Associated viruses for expression of dLight1.1...
  13. Retrograde AAV viral preps

    Type
    Collection
    ...helper plasmid (Addgene #81070) . This serotype permits robust retrograde access and transgene delivery to...Cre-dependent Optogenetics Deisseroth 26973 pAAV-hSyn-hChR2(H134R)-EYFP Syn Activator Optogenetics Deisseroth...Activator Optogenetics Svoboda 26975 pAAV-CaMKIIa-hChR2(H134R)-mCherry CamKII Activator Optogenetics Deisseroth...Flp-dependent Optogenetics Deisseroth 58880 pAAV-Syn-ChR2(H134R)-GFP Syn Activator Optogenetics Boyden 59170...Activator Optogenetics Boyden 83898 pAAV-mDlx-ChR2-mCherry-Fishell-3 mDIx Activator Optogenetics Fishell...Cre-dependent Optogenetics Boyden 99039 pAAV-CamKII-ArchT-GFP (PV2527) CamKII Inhibitor Optogenetics Boyden ...Cre-dependent Optogenetics Yizhar 125712 pAAV-CaMKIIa(0.4)-eOPN3-mScarlet-WPRE CamKII Inhibitor Optogenetics Yizhar...
  14. Prime Editing: Adding Precision and Flexibility to CRISPR Editing

    Type
    Blog Post
    ...). Efficient site-specific integration of large genes in mammalian cells via continuously evolved recombinases...Over 75,000 pathogenic genetic variants have been identified in humans and cataloged in the ClinVar database...editing tools. We’ll summarize the major ones in Addgene’s repository later in the post. Advantages of prime...by double strand breaks has been widely used to generate precise changes. However, the efficiency of Cas9...Prime editing has a lot of promise for treating genetic diseases. In our summer Hot Plasmids post, we covered...demonstration of prime editing used to rescue a genetic disease phenotype in an animal model, which was...s41587-022-01527-4 Additional resources on the Addgene blog PRIDICT: Predicting Efficiencies of Prime...
  15. Antibody Production

    Type
    Collection
    ...distributed by Addgene have been produced in-house by Addgene scientists. They are generated using standard...or by contacting help@addgene.org . Some of the antibodies distributed by Addgene were developed by the...Overview of Addgene's antibody production methods and quality control processes for purified recombinant...optimized for each specific antibody in order to generate high quality preparations. Following production...titered and undergo stringent quality control by Addgene or a trusted quality control partner before distribution... preparations developed at IPI may differ from Addgene antibodies in “Production & Usage” and “Delivery...using ImageJ software and a standard curve is generated. The final antibody concentration is calculated...
  16. All Antibodies

    Type
    Collection
    ...Browse Addgene's collection of recombinant monoclonal antibodies....application-specific validation and quality control by Addgene as well as by our trusted partner labs. On this...antibodies currently available from our catalog. Addgene values transparency and accessibility in research...reactivity. Reactivity is based on validation data from Addgene or trusted partner labs or is predicted based on... on sequence homology with the antigen. Addgene supplies a list of recommended applications based on our...immunohistochemistry, and immunocytochemistry. Addgene will continue to work with both depositing and ...to produce antibodies are available as part of Addgene’s larger Antibody Plasmid Collection , which also...
  17. Viral Prep Service for Plasmids and Pooled Libraries

    Type
    Collection
    ...vectors, and general biosafety guidelines. Addgene Blog: Viral Vector Posts Content from Addgene and scientists...production at Addgene, ordering information, and more. Additional Viral Vector Resources Addgene's Data Hub...Overview of Addgene's viral preparation service for plasmids and pooled libraries. Viral preparation ... Viral Vector Packaging Service Addgene produces high-quality viral vector preps from select...is a common step after requesting plasmids from Addgene, and by providing this service, we can save you... to do when you receive your viral vector from Addgene, with details about storage. Biosafety Guide Documentation... the Penn Vector Core have been transferred to Addgene for distribution. Look up the IDs of particular...
  18. Plasmid Collections

    Type
    Collection
    ... Addgene Homepage Plasmid Collections Addgene Plasmid Collections...Luminescence Fluorescent Proteins Luciferase Optogenetics Chemogenetics Viral Plasmids Lentivirus Adeno-associated...Browse Addgene’s curated collections of plasmids, kits, and pooled libraries. Find tools for CRISPR, ... proteins, optogenetics, biosensors, and more. Addgene...Collections Addgene's repository contains 157,223 plasmids . We've gathered our curated plasmid resources...Collection Bacterial Expression Systems Empty Backbones Genetic Code Expansion Immunology Mammalian RNAi Microbiology... Neuroendocrine Tumor Research Foundation Neurodegeneration Research Collection Rett Syndrome Plasmid ...
  19. DNA Service - Cloning Grade DNA

    Type
    Collection
    ...stabs. Cloning Grade DNA is an Addgene Beta service. Learn more about Addgene's Beta Projects and how you ...assistance at help@addgene.org . Don’t See What You’re Looking For? At this time, Addgene has made a limited...Grade DNA Service Details Plasmids Available FAQ Addgene is offering Cloning Grade DNA (cgDNA) for over ...start cloning upon arrival of their plasmid from Addgene - reducing the time to experiments by removing ...Standard Quality Control Plasmid verified by next generation sequencing Plasmids Available as Cloning Grade...the plasmid sequence has been validated by next generation sequencing. The DNA concentration and 260/280...resources or scientific support? Please see our Addgene Protocols for resources you may find helpful. Our...
  20. SARS-CoV-2 Pseudotyped Virus

    Type
    Collection
    ...Addgene's collection of plasmids for viral pseudotyping with SARS-CoV-2 spike protein....the live virus. Alternatively, it is possible to generate pseudovirus, where the structural and functional...protein and you will find examples of each in Addgene's collection: HIV-based lentiviral particles Murine...particles Vesicular stomatitis virus particles See Addgene's Viral Plasmids and Resources page for more information...lists expression plasmids that are suitable for generating pseudotyped virus for SARS-CoV-2 and other coronaviruses...Pseudotyped virus protocol for coronaviruses (184 KB) Addgene Blog Posts Viral Vectors 101: Pseudotyping Antibody...Pseudoviruses Expressing SARS-CoV-2 Spike Protein Variants Addgene COVID-19 Resources and Collections COVID-19 and...
Showing: 741 - 760 of 1138 results