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We narrowed to 560 results for: mal.2

Showing: 161 - 180 of 560 results
  1. Optogenetics + CRISPR, Using Light to Control Genome Editing

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    ...the light-inducible heterodimerizing cryptochrome 2 (CRY2) and calcium and integrin-binding protein 1 ...inactive, dead Cas9 protein (dCas9) fused to CIB1; and 2) the activator - the CRY2 photolyase homology region... fused to both the N- and C-termini of dCas9; and 2) CRY2FL-VP64, a fusion of full-length CRY2 and the...researchers saw an 11-fold increase in mRNA levels after 2 hr and a 400-fold increase after 30 hr. The system...authors fragmented Cas9 into N-terminal (residues 2-713, N713) and C-terminal (residues 714-1368, C714...nMagC714 instead of nMagHigh1-C714, generating paCas9-2. This change did not significantly alter the system...prior work, the Sato lab also showed that the paCas9-2 system could be spatially controlled and reversibly...
  2. Antibodies 101: ChIP

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    ...reserve a small aliquot, split into two parts to (1) run a DNA gel to confirm fragment size and (2)  incubate...proteins of interest to any DNA they were bound to (2) fragmented the DNA (3) used antibodies to specifically...adjustments, to get everything just right!  Fig. 2: Goldilocks is actually celebrating a successful ChIP...therefore will require crosslinking, which uses formaldehyde or UV light to create strong but reversible ...Fragmenting  The next step is break the DNA into random, small pieces of roughly equal size, typically between ...
  3. Simplify Cloning with in vivo Assembly

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    ...procedure to be performed using a simple two-step, 2 hr protocol prior to transformation (Figure 1). As...Primer design Using specific primer design (Figure 2), IVA cloning can be used to perform any plasmid modification... for each type of modification is shown in Figure 2, and is discussed in more detail below. The main requirement...Biotechniques 10.1 (1991): 62-66. PubMed PMID: 2003926. 2. Bubeck, Peter, Monica Winkler, and Wilfried Bautsch...higher Tm give more efficient recombination. We normally use a Tm between 47-55 °C for the homologous region...be very helpful to confirm primer design.  Use minimal template DNA Use 1 ng of PCR template DNA to minimize...
  4. Negative Can Be Positive: Open AAV Data with Addgene

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    ...indicated they wanted to see more negative data (Figure 2.) At the same time, when scientists who support open...is not only housed, but encouraged.    Fig. 2: Results from a survey conducted by Addgene in 2021...detailed methods and image descriptions, a minimum n = 2, and well labeled high- and low-magnification images...gene therapy trials. Human Gene Therapy Methods, 26(2), 71–76. https://doi.org/10.1089/hgtb.2015.040 Initiative...specifically to allow scientists to evaluate how small changes in vector administration can influence AAV...doi.org/10.1089/hgtb.2019.105 Rumachik, N. G., Malaker, S. A., Poweleit, N., Maynard, L. H., Adams, C....
  5. Viral Production at Addgene

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    ...digital PCR. Human Gene Therapy Methods, 25(2), Article 2. https://doi.org/10.1089/hgtb.2013.131 Wang,...(see maps section for images).     Figure 2: AAV Pro cells were transduced with either pAAV-Ef1a-mCherry-IRES-Cre...Digital PCR Method. Human Gene Therapy Methods, 29(2), 96–103. https://doi.org/10.1089/hgtb.2017.198   ...properties of the final product, particularly in large animal studies. Endotoxin contamination is minimized by...MRP 30 kDa subunit (RPP30) as a control for normalization purposes are being used. Quality Control Mycoplasma...
  6. Mouse Modeling, Part 2: Breeding and Crossing Mice

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    ...detect your targeting vector or gene of interest. 2. Breed your parental mice to generate F1 Once you’...in your offspring. Genotyping involves getting a small piece of tissue from each mouse (typically via either...
  7. Hot Plasmids: Fall 2025

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    ...Biotechnology, 10.1038/s41587-024-02551-2. https://doi.org/10.1038/s41587-024-02551-2    Knocking-down barriers ...recipient cells from red to green fluorescence (Figure 2). Donor cells express iCre with a mitochondrial anchor...DsRed-STOP to trigger expression of EGFP. Figure 2: Schematic of the MitoTRACER system. NLS = nuclear...), 6563. https://doi.org/10.1038/s41467-024-50767-2     ...biomolecular condensate in human cells — causes a rare malformation syndrome (Mensah & Niskanen et al., 2023). Now...oxygen consumption and upregulating other genes normally expressed in BAT. When donor-derived CRISPRa-AAV-treated...
  8. RNA Interference in Plant Biology: New Tools for an Old Favorite

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    ... analogs such as 2-fluoroadenine (2-FA), organisms with functional APT will convert 2-FA to cytotoxic ...selection of plants undergoing RNAi, and LIIbeta F 1-2 RNAi, which allows assembly of intron-spliced hpRNAs...nucleotides, resulting in death. In the presence of 2-FA, potent gene silencing of APT is required for survival...trigger in the mammalian research community. Fortunately, many tools for shRNA in mammals are available...enzymes are involved in the biogenesis of different small RNAs (Figure 1). These siRNAs can exert their gene...posts Resources on Addgene.org Find tools for mammalian RNAi Browse all plasmids for RNAi Check out Addgene's...
  9. Live and Let Dye: Self-Labeling Protein Tags

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    ...super-resolution or single-molecule techniques.   Figure 2: Two-color super-resolution imaging of ER and mitochondria...stimulated emission depletion (STED) nanoscopy. Scale bar, 2 μm. Inset shows comparison with standard confocal ...enables applications like multi-color imaging (Figure 2). If you’re working with purified proteins in vitro...Labeling in Living Cells. Chemistry & Biology, 15(2), 128–136. https://doi.org/10.1016/j.chembiol.2008.01.007...conjugates: A flexible chemical tag. Nature Methods, 2(4), Article 4. https://doi.org/10.1038/nmeth749  Strebinger...implement, they can be highly specific with a small and minimally-disruptive genetic tag on the protein of ...show good specificity for their own ligands with minimal cross-reactivity. Other strategies include using...
  10. Starter Guide to induced Pluripotent Stem Cells (iPSCs) Part 2:  Reprogramming and Transdifferentiation

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    ...retrovirus [2], lentivirus [4], adenovirus [5], Sendai virus [6], plasmid electroporation (episomal) [7, 8]...revert back to a pluripotent stage (iPSC formation) [2, 3]. The iPSCs then proliferate and redifferentiate...2006. 441(7097): p. 1061-7. PubMed PMID: 16810240. 2. Takahashi, K., et al., Induction of pluripotent stem... Pluripotent Stem Cells. Cell Stem Cell, 2015. 17(2): p. 178-94. PubMed PMID: 26189426. 15. Si-Tayeb, ...induced pluripotent stem cells. Stem Cell Rev, 2015. 11(2): p. 242-53. PubMed PMID: 25578634. PubMed Central... to regeneration. Nat Rev Mol Cell Biol, 2011. 12(2): p. 79-89. PubMed PMID: 21252997. 37. Merrell, A....differentiation.” Specific cell media, supplements, bioactive small molecules, and growth factors are used to control...
  11. CRISPR 101: Cytosine Transversion Editors

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    ...Nature Cell Biology, 26(2), 294–304. https://doi.org/10.1038/s41556-023-01342-2 Koblan, L. W., Arbab, M...order to bind DNA, Cas9 requires (1) a guide RNA, (2) a complementary DNA sequence, and (3) a protospacer-adjacent...region of separate strands called an R-loop (Figure 2). This allows the guide RNA to base pair with the ...accessible on the outside of the enzyme. Figure 2: CRISPR R-loop. Created with BioRender.com. Base...), 35–40. https://doi.org/10.1038/s41587-020-0592-2 Additional Resources on the Addgene blog CRISPR 101...Differential cytosine editing between bacteria and mammalian cells Researchers in the Xueli Zhang lab were ...seemed to follow the same initial mechanism as in mammalian cells — by excising the freshly edited U bases...
  12. Advanced Uses of Cre-lox and Flp-FRT - A Neuroscientist’s View

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    ...FLP and Cre for additional control   Figure 2: Expression of a morphological marker (eYFP) and synaptic...Sternson. 2008. “A FLEX Switch Targets Channelrhodopsin-2 to Multiple Cell Types for Imaging and Long-Range ...PMID: 18614669. PubMed Central PMCID: PMC2593125. 2. Buchholz, F, P O Angrand, and A. Francis Stewart....The FLP Recombinase of the Saccharomyces Cerevisiae 2 Micron Plasmid Attaches Covalently to DNA via a Phosphotyrosyl...optimum of 30 °C and is therefore inefficient in mammalian cells (usually grown at 37 °C). Smart molecular...populations) within neuronal networks in living animals. To accomplish such cell specific manipulations.... “Conditional Site-Specific Recombination in Mammalian Cells Using a Ligand-Dependent Chimeric Cre Recombinase...
  13. Viral Vectors 101: Integrase-Deficient Lentiviral Vectors

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    ...see Figure 2).  Figure 2: Schematic representation of integration process and episomal forms of ...due to insertional mutagenesis (Howe et al., 2008). 2. Transient expression of transgenes/shRNAs If you ...vectors: progress and applications. Gene Therapy, 17(2), 150–157. https://doi.org/10.1038/gt.2009.135. PubMed...efficiently during infection. Journal of Virology, 70(2), 721–728. https://doi.org/10.1128/JVI.70.2.721-728.1996...
  14. Plasmids 101: Restriction Cloning

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    ... used. Follow the manufacturer’s instructions.   2. Isolate Your Insert and Vector by Gel Purification...DNA concentration alone. One method is to conduct 2 ligations for each plasmid you are trying to create...containing the ligation mixture with backbone alone; 2. Transformation containing ligation mixture with insert...colonies than the vector + insert plate (unsuccessful 2), or roughly equivalent numbers of colonies on each... or equivalent to backbone + insert, unsuccessful 2 and 3 above), you can try ligating the recipient plasmid...fragments of linearized DNA migrate slower than smaller linearized fragments. You can separate your backbone...
  15. Plasmids 101: Expressing shRNAs for RNA Interference

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    ...downstream genomic sequences (Figure 2B).   Figure 2: A comparison of an shRNA plasmid sequence and an ...module_attribute "schema_version" is_json="true" %}{% raw %}2{% endraw %}{% end_module_attribute %}{% module_attribute...References Bartel, D. P. (2004). MicroRNAs. Cell, 116(2), 281–297. https://doi.org/10.1016/s0092-8674(04)00045...miRNA-guided gene silencing. Nucleic Acids Research, 50(2), 617–634. https://doi.org/10.1093/nar/gkab1256 Lee...collections/mammalianrnai/","href_with_scheme":"https://www.addgene.org/collections/mammalianrnai/","type"...font-family":"helvetica","font-style":"normal","font-weight":"normal","text-decoration":"none"},"fallback..."font-family: helvetica; font-style: normal; font-weight: normal; text-decoration: none","font_set":"DEFAULT...
  16. Photosensitizer Induced Cell Ablation with FAP-TAP MG-2I-dL5**

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    ...fluorogen activating protein - dL5** in this case), and 2) a fluorogen (the TAP - targeted and activated photosensitizer...cells present 96 hours post treatment (see figure 2). Induced cell death was confirmed by TUNEL staining...PMID: 26808669. PubMed Central PMCID: PMC4916159. 2. Jacobson, K., Rajfur, Z., Vitriol, E., & Hahn, K....portion of the complex and is derived from the malachite green (MG) dye, but has been modified with the...et al also show that MG-2I-dL5** only generates small amounts of non-specific ROS when exposed to YFP ...Receive the Fluorescent Protein eBook Learn about Small Molecule Fluorophores Resources on Addgene.org ...
  17. Troubleshooting Your Plasmid Cloning Experiment

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    ...few colonies (5-10) and grow them in a small culture volume (2 or 3 ml) containing the corresponding antibiotic... working with is correct. It's also best to use 1-2 ug of the vector for digestion. PCR Design primers...plasmid; a starting point could be a molar ratio of 1:2 (plasmid:insert), but this parameter has to be optimized...new plates with a fresh stock of antibiotic. Many small colonies surrounding big colonies. You probably ...left your plate for too long in the incubator. The small colonies are called satellite colonies and they ...
  18. Cutting Once Is Harder Than It Sounds: Your Guide to Minimizing Off-Target Effects

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    ... a great preliminary risk reduction at a minimal cost. Step 2: Rough screening of nuclease variants by...different ranges of the activity spectrum (Figure 2). Identify the least active variant that still shows...test if you want further refinement.  Figure 2: Schematic representation of the two-step screening... last active and the first inactive one from step 2. (In the example in Figure 3, the least active still...that can reliably identify this optimal variant in advance, so minimal experimental testing is required...sgRNA: Check on-target activity of WT SpCas9 and a small set of strategically selected IFNs on your samples...activity, and the whole screening required only minimal extra effort (Figure 3). This first-pass screen...
  19. Hot Plasmids April 2018 - Protein Degradation, Nanoscopy, FIRE-Cas9, and Yeast Expression Tools

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    ...difficult-to-manipulate primary cells, achieving knockdown within 1-2 hr of reagent delivery. TRIM-Away is suitable for ...factor 1 controls expression of transcription factor 2, which directly controls expression of a reporter ...modulating the induction of transcription factors 1 and 2. See Aranda-Díaz et al. for more information. The ...ubiquitin ligase, is the basis of TRIM-away. In normal physiology, TRIM21 recruits ubiquitin and the proteasome...tested multiple methods for TRIM-Away delivery. For small cell populations, co-microinjection of TRIM21 protein... et al. Cell. 2017. PubMed PMID: 29153837. Endosomal pH sensors for STED nanoscopy Article contributed...contributed by Eric J. Perkins Listen to Endosomal pH Sensors podcast segment The first Addgene plasmid deposit...
  20. Addgene’s Newest Way to Speed Your Research: The Cloning Grade DNA Service

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    ... be directly used in the research on the SARS-CoV-2. Nine of the overall plasmid selection will be open... cloning grade DNA beta project We will ship you  2 µg of DNA in 20 µl of Tris buffer suitable for molecular...in terms of target organisms (from bacteria to mammals), cloning techniques, and experimental use (CRISPR...
Showing: 161 - 180 of 560 results