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We narrowed to 102 results for: gal.1

Showing: 41 - 60 of 102 results
  1. Beyond the Blood Brain Barrier: PHP.B Enters the Central Nervous System Via the LY6A Receptor

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    ...determined LY6A, also known as stem cell antigen-1 (SCA-1), is the receptor used by PHP.B to reach the CNS...William L. Stanford. "Concise review: stem cell antigen‐1: expression, function, and enigma." Stem cells 25.6...transducing cells: galactose and the AAV receptor (AAVR). Cell lines lacking galactose were still transduced...PHP.B, unlike its parental AAV9, does not require galactose and AAVR to transduce cells. The Wilson Lab generated...
  2. Plasmids 101: TOPO Cloning

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    ... strand and a tyrosyl residue of topoisomerase I (1). If a 5′ hydroxyl group from a different DNA strand...Let’s break down the steps needed for TOPO cloning: 1. Create Your PCR Product: Design standard primers ...mind that Taq polymerase has an error rate of about 1 in 3,500 bases. Typically polymerases with proofreading...enzyme and Taq, with Taq used in an excess ratio of 10:1. Gel purify your PCR product and incubate it with ...you to see colonies within 8 hours. References: 1. Shuman S. "Recombination mediated by vaccinia virus...the topoisomerase site inserted into a beta-galactosidase cassette allowing a researcher to perform blue-white...
  3. Viral Vectors 101: The Retroviral Lifecycle

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    ...can use Figure 1 to compare the genomes of these two family members.   Figure 1: Gamma-retrovirus...Retroviruses” is an umbrella term which encompasses 1.) the gamma-retroviruses — that have been developed...of retroviruses called the lentiviruses (like HIV-1) — that have been developed into lentiviral vectors...Academy of Sciences of the United States of America, 54(1), 137–144. https://doi.org/10.1073/PNAS.54.1.137. ...1997). Functional RT and IN incorporated into HIV-1 particles independently of the Gag/Pol precursor protein...RNA as template. Journal of Molecular Biology, 79(1), 163–183. https://doi.org/10.1016/0022-2836(73)90277...Aids Full-Length Human Immunodeficiency Virus Type 1 DNA Synthesis. Journal of Virology, 82(5), 2376. https...
  4. Hot Plasmids: Fall 2025

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    ...with a membrane-impermeable biotin substrate (Figure 1). Biotinylated proteins were isolated, identified ...transporters, ion channels, GPCRs, and more.  Figure 1: Workflow for cell-surface protein labeling and identification...564–571. https://doi.org/10.1038/s41586-022-05682-1 Zhang, Y., et al. (2025). Probing condensate microenvironments... and synthetic biology. Nature Communications, 15(1), 6563. https://doi.org/10.1038/s41467-024-50767-2...condensates AAV-CRISPRa-engineered fat cells fight cancer Frugal CRISPR kit for classrooms Cell-surface proteomics...here! Collins, M., Lau, M. B., et al. (2024). A frugal CRISPR kit for equitable and accessible education...
  5. Tips for Screening with Yeast Two Hybrid Systems

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    ... References 1. Casadaban M.J., Martinez-Arias A., Shapira S.K., Chou J. Beta-galactosidase gene fusions... fusions that retain their individual activities (1). Researchers also discovered the modular format of...systems could be combined effectively (3). In Figure 1 for instance, the DBD of the fusion protein shown ...Although the original Y2H systems utilized the yeast Gal4 activator, bacterial LexA DBD and the lacZ reporter...
  6. AAV Packaged on Request is Here!

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    ...volume, and submit your request.    Figure 1: The AAV Packaged on Request banner.   We currently..., AAV8, or AAV Retrograde (AAVrg), and volumes of 1 mL, 2.5 mL, or 5 mL. Please note that all orders will... our on-demand viral service, we expect titers of 1 × 1013 GC/mL for AAV1, AAV5, AAV8, and AAVrg and 7...request is received, we’ll review for technical and legal compliance, and then send you an email with a link...
  7. Viral Vectors 101: Integrase-Deficient Lentiviral Vectors

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    ...and no viral progeny are produced (Figure 1).  Figure 1: Comparison of the life cycle of a lentiviral...2004). HIV-1 gene expression: lessons from provirus and non-integrated DNA. Retrovirology, 1, 13. https... cannot integrate it into the host genome (Figure 1). IDLVs were first discovered by researchers investigating...you might choose an IDLV over a lentiviral vector: 1. No risk of insertional mutagenesis Lentiviral vectors..., H. E. (1996). Human immunodeficiency virus type 1 integrase mutants retain in vitro integrase activity...Berry, C., Ecker, J. R., & Bushman, F. (2002). HIV-1 integration in the human genome favors active genes...https://doi.org/10.1186/1742-4690-1-13. PubMed PMID: 15219234 PubMed Central PMCID: PMC449739 Yew, C.T., ...
  8. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

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    ...how to use our deposit spreadsheet to complete Step 1. Steps 2 and 3 are usually very easy — our tech transfer...scientist, you will have the most involvement with Step 1, and, while data entry can be a chore, we’ve made ...Deposit” and “Download Deposit Spreadsheet” (see Figure 1). Please read our “How to Deposit Your Plasmids with...thorough guide to our online data entry process. Figure 1: Begin the deposit process by clicking “Submit Online...spreadsheet (Figure 2) and are described in Table 1. Some cells have drop-down options for you to choose...and are exceptions to our standard workflow.  Table 1: Guidelines for the data fields in the deposit spreadsheet...), M. musculus (mouse), R. norvegicus (rat), G. gallus (chicken), B. taurus (bovine), X. laevis (frog)...
  9. Why Do I Need an MTA Anyway?

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    ...is here to help. Contact us at [email protected] or +1 617-225-9000, or check out our MTA reference pages...s the heart and soul of Addgene’s mission), but legal complexities can arise when scientists are sharing...sharing space, we heard over and over again that the legal documents were one of the biggest hurdles for scientific... of not just the physical samples, but also the legal documentation that allows you to conduct your experiments...easy Even with all those benefits, we know that legal documents can get tricky. Here’s how Addgene helps...
  10. AAV Titers: Where Do They Come From And What Do They Mean?

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    ...near-perfect physical-to-infectious particle ratio of 1:1 (Zeltner et al., 2010). However, for recombinant ...preparations are genome-containing (Figure 1).    Figure 1: Electron micrograph of an Addgene AAV...reported a physical-to-infectious particle ratio of 50:1 (Zeltner et al., 2010). The specific infectivity of... lot (if we still have it available). References 1. Fagone, Paolo, et al. "Systemic errors in quantitative... Human Gene Therapy, Part B: Methods 23.1 (2011): 1-7. PubMed PMID: 22428975. PubMed Central PMCID: PMC3640491...8610.4. Hindson CM, Chevillet JR, Briggs HA, Gallichotte EN, Ruf IK, Hindson BJ, Vessella RL, Tewari M...
  11. Plasmids 101: Protein tags

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    ...does not greatly alter the size of the tag.   Table 1: Common protein tags Tag Epitope Mass (kDa) Function... conditions FLAG DYKDDDD or DYKDDDDK or DYKDDDK 1 Affinity and Purification Good for antibody-based ...Function Notes CBP KRRWKKNFIAVSAANRFKKISSSGAL 4 Affinity and Purification Binding and elution steps use...eukaryotes TAP GRRIPGLINP WKRRWKKNFI AVSAANRFKK ISSSGALDYD IPTTASENLY FQGEFGLAQH DEAVDNKFNK EQQNAFYEIL HLPNLNEEQR...PILDEIADEY QGKLTVAKLN IDQNPGTAPK YGIRGIPTLL LFKNGEVAAT KVGALSKGQL KEFLDANLAG SGSGHMHHHH HHSSGLVPRG  12 Solubililty...
  12. Getting to Know Expansion Microscopy

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    ...protocols. A typical ExM protocol (Fig. 1) follows this structure: Step 1: fix (and maybe label) your sample...microscopy. Nat Biotechnol 1–12. https://doi.org/10.1038/s41587-022-01546-1  Mikhaylova M, Cloin BMC, ...https://doi.org/10.1038/s41592-018-0238-1  Klimas A, Gallagher BR, Wijesekara P, et al (2023) Magnify ...just adding water.)  Step 5: Image   Figure 1: The ExM process allows you to physically magnify ...
  13. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

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    ...modifications). Ready to get started?   Figure 1: Break free from the ball and chain!   Epigenetics...?  Dividing cells depend on DNA methyltransferase 1 (DNMT1) to copy methylation marks from parental to...interact with DNA independently of dCas9 targeting (Galonska 2018). This means that off-target loci – in neighboring... 301, 89–92. https://doi.org/10.1038/301089a0. Galonska C, Charlton J, Mattei AL et al (2018). Genome-...
  14. Viral Vectors 101: AAV Serotypes and Tissue Tropism

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    ...them to target particular cell types. Figure 1: Diagram of AAV components. Created with BioRender.com...depends on your choice of promoter/enhancer. Table 1: AAV capsids and receptors. Capsid Primary receptor...required)2 Human fibroblast growth factor receptor 1 (FGFR1)3 αVβ5 and α5β1 integrins3 Hepatocyte growth...structure of AAV2, so they are formally called rAAV2/1, rAAV2/2, and so on, although we often use abbreviated...utilizing various AAV serotypes. Scientific Reports, 15(1), 20927. https://doi.org/10.1038/s41598-025-05518-...-directed transduction. Nature Communications, 14(1), 3792. https://doi.org/10.1038/s41467-023-39554-7... and Transduction by Adeno-Associated Virus Types 1 and 6. Journal of Virology, 80(18), 9093–9103. https...
  15. Stabilized Bacterial Promoters: Constant Gene Expression at any Copy Number

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    ...these stabilized promoters a try. References 1. Segall-Shapiro, Thomas H., Eduardo D. Sontag, and Christopher...gene expression stable regardless of copy number (Segall-Shapiro et al., 2018). Designing stabilized promoters...constant. In the case of the stabilized promoters from Segall-Shapiro et al., they chose a TALE protein as the...replication, the stabilized promoters created by Segall-Shapiro et al. showed nearly no position-dependent...as cell division slows (Kittleson et al., 2011). Segall-Shapiro et al. showed that the stabilized promoters...number during the transition to stationary phase, Segall-Shapiro et al. placed a trans-acting RepA protein...genes whose proteins are needed sequentially. When Segall-Shapiro et al. placed the genes under the control...
  16. Synthesized by Ginkgo Bioworks, Shared by Addgene: SARS-CoV-2 Plasmids for Many Expression Systems

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    ...give your research more visibility.    Figure 1: Illustration of SARS-CoV-2 from Philippa Steinberg...constructs include proteins like nonstructural proteins 1 to 16, spike proteins, envelope small proteins, and...Humana Press, pp 331–338 https://doi.org/10.1007/978-1-59745-181-9_23 Additional resources on the Addgene...backbones which drive expression using either TEF1 or GAL1 promoters. These vectors are intended for the high...
  17. The AAVantages of AAV in CRISPR Screens

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    ...NGS) to identify genes of interest. Figure 1: Overview of in vitro AAV CRISPR screens. Created ...certain experiments. AAV can be safely handled at BSL-1, while lentivirus requires a BSL-2 setup. This requires...CRISPR-induced DNA breaks. Nature Communications, 10(1). https://doi.org/10.1038/s41467-019-12449-2 Pupo,...diseases. Signal Transduction and Targeted Therapy, 9(1). https://doi.org/10.1038/s41392-024-01780-w Additional...023-06570-y Wang, J., Gessler, D. J., Zhan, W., Gallagher, T. L., & Gao, G. (2024). Adeno-associated virus...
  18. Plasmids 101: Modular Cloning Applications and Kits

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    ...within the mitochondrial matrix.     Figure 1: A chart with MoClo kit recommendations for different...Traditional Biology.” ACS Synthetic Biology, vol. 5, no. 1, American Chemical Society (ACS), 4 Nov. 2015, pp...., vol. 4, no. 9, American Chemical Society (ACS), 1 May 2015, pp. 975–86. Crossref, https://doi.org/10.1021...Yeast Mitochondria.” BMC Biotechnology, vol. 17, no. 1, Springer Science and Business Media LLC, 13 Nov. ...Editing in Plants.” BMC Plant Biology, vol. 20, no. 1, Springer Science and Business Media LLC, 23 Apr. ...Arabidopsis Mutants.” The Plant Journal, vol. 106, no. 1, Wiley, 25 Mar. 2021, pp. 8–22. Crossref, https://...Cloning Platform.” Scientific Reports, vol. 9, no. 1, Springer Science and Business Media LLC, 12 July ...
  19. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

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    ...discovered such as Kaede and PS-CFP2 (see Table 1). Table 1: Properties of Selected Irreversible Photoactivatable...) by mutating Threonine 203 to Histidine (T203H) (1). wtGFP normally contains a mixed population of neutral...in fluorescence when illuminated with blue light (1). Similar to PA-GFP, scientists later developed red...fixation conditions to preserve cellular structures (0.5-1% osmium tetroxide). These conditions destroy most ...with extraordinary molecular detail.   References 1.Patterson, George H., and Jennifer Lippincott-Schwartz...is believing." Annu. Rev. Biomed. Eng. 10 (2008): 1-38. PubMed PMID:18647110. Additional Resources on ...16980368. PubMed Central PMCID:PMC1635685. 12.Paez-Segala, Maria G., et al. "Fixation-resistant photoactivatable...
  20. Viral Vectors 101: Inverted Terminal Repeats

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    ...) vector (Figure 1). Everything else outside the ITRs gets left behind.    Figure 1: Recombinant AAV ...productivity but increases transgene expression. Sci Rep, 7(1), 5432. https://doi.org/10.1038/s41598-017-04054-4...Y., Nauwynck, L., Bonnin, D., Merten, O.-W., & Galibert, L. (2017). Impact of Inverted Terminal Repeat...
Showing: 41 - 60 of 102 results