We narrowed to 604 results for: abo.2
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TypeBlog Post... fluorophore excitation by absorption of a photon 2. Energy transfer from the excited donor directly to...PMID: 24194740. PubMed Central PMCID: PMC3810607. 2. Bajar, Bryce T., et al. "A Guide to Fluorescent Protein...PubMed PMID: 10500161. PubMed Central PMCID: PMC18018. 2. Miyawaki, Atsushi, et al. "Fluorescent indicators...can be done using FRET! Read on to find out more about this amazing imaging technique and find further ...our curated list of biosensors too, as another laboratory may have already created the sensor that you ...ability of labs to answer sophisticated questions about cellular processes. Currently, FRET experiments ... Tips for using FRET in Your Experiments Learn about Fluorophore Targeting for FRET Studies FRET Based...
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Hot Plasmids April 2018 - Protein Degradation, Nanoscopy, FIRE-Cas9, and Yeast Expression Tools
TypeBlog Post...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 ...articles from April 2018. If you'd ever like to write about a recent plasmid deposit please sign up here. No... -
Pairing CombiGEM and CRISPR for Combinatorial Genetic Screening
TypeBlog Post...CombiGEM lentiviral vector backbone pAWp12 (Figure 2). Cloning from the pAWp28 storage vector to the pAWp12... before beginning your experiments. Figure 2: Strategy for assembling barcoded combinatorial gRNA...PMID: 25114216. PubMed Central PMCID: PMC4151723. 2. Doench, John G., et al. "Optimized sgRNA design to...How Barcodes Can Be Used in Lineage Tracing Read about CRISPR/Optogentics Tools Resources on Addgene.org... -
5 Steps to Writing Grant Proposals for Grad Students
TypeBlog Post...require application submission in-house approximately 2 weeks before the RFA due date in order for the administrative...deliverables to the aims requested in the call. Step 2: Develop a research plan Most grant applications ...proposal typically lists the deliverables, explains 1-2 potential pitfalls of the intended protocol, and offers...first. Additionally, reach out to peers and collaborators who have succeeded at grant writing to see what... -
Synthetic promoter AAVs for cell-type specific expression in retinal cells
TypeBlog Post...retinal cell-type specific genes from mice. Strategy #2 (ProB): Create promoters using phylogenetically conserved...would express Cre-mCherry and GFP. Figure 2: Synthetic promoters can be paired for targeted expression...1345-1356. https://doi.org/10.1038/s41593-019-0431-2 Neff, E.P. An AAV library for retinal cell expression...Addgene blog Read more about using AAV for retinal gene therapy Find more about precise neuronal targeting...injected into macaques and postmortem human retinas. About 25% of these AAV synthetic promoters successfully... -
Quickest Way to Deposit Plasmids: The Deposit Spreadsheet
TypeBlog Post...our deposit spreadsheet to complete Step 1. Steps 2 and 3 are usually very easy — our tech transfer team...columns are shown in red in the spreadsheet (Figure 2) and are described in Table 1. Some cells have drop-down...Filling out and sending the deposit spreadsheet Figure 2: Example of the deposit spreadsheet showing the first...streptomycin, tetracycline, combinations of the above, or other. High or Low Copy Choose from: high...the “Purpose” field. If you ever have a question about what should go into a cell, hover over the cell ...Addgene and contact your technology transfer office about the MTA. Pro Tip! Download a new spreadsheet each... -
Adeno Associated Virus (AAV) for Cell and Gene Therapy
TypeBlog Post...AAVs in the clinic Thus far, AAV vectors AAV1, AAV-2, AAV1-AAV2 hybrids, AAV-6, AAV-7, AAV-8, AAV-9 and...neutralizing antibodies against some AAV types, AAV1, 2, 3 and 5 are thought to be as high as 70% among the... 10.24 (2003): 1999-2004. PubMed PMID: 14566358. 2. Hirsch, M. L., et al. "Self-complementary AAV mediates...Vectors Featured Topic Page Learn about CRISPR-AAV vectors Learn about Addgene AAV Quality Control Process...viral infections. She is particularly passionate about HIV cure research and science communication. ... -
Plasmids 101: Expressing shRNAs for RNA Interference
TypeBlog Post...Reexamining assumptions about miRNA-guided gene silencing. Nucleic Acids Research, 50(2), 617–634. https://...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... -
Making CRISPR Plasmids Using Fragmid
TypeBlog Post... of components, such as your CRISPR enzyme or Pol 2 promoter. The options available in each class, or ...overhang specific to the type of module it is (Pol 2 protomer, Cas protein, ect...). Whatever individual... (KO, CRISPRa, CRISPRi, editing) Figure 2: Selecting module fragments on the Fragmid website...Destination vector (dropdown options depending on above selections) Module set (the set of components you...vectors) Target type (drop down options depending on above selections.) CRISPR enzyme (Cas9 [sp], Cas9 [other... -
Educational Planarian Tools for Teaching Developmental Biology Techniques
TypeBlog Post...neoblast cells and the gene Prohormone convertase 2 (pc2) labels the central nervous system. Evaluating... characterized in an unrelated worm (C. elegans) [2]. Delivering dsRNA matching a specific mRNA sequence...223). Link: http://abt.ucpress.edu/content/79/3/208 2. Fire, S. Xu, M.K. Montgomery, S.A. Kostas, S.E. Driver...experiments in the beginning. In most classrooms, the laboratory experience is focused on classical embryology... Biology with BioBuilder 3D Models for learning about CRISPR Resources at Addgene.org Find plasmids ... -
Adeno-associated virus (AAV) Guide
TypeGuide...components, see the AAV Plasmid Elements table . Figure 2: Plasmids required for rAAV vector production. Created... pseudotyped with viral capsids from serotypes 1, 2, and 5 display differential efficiency and cell tropism...the central nervous system . Molecular Therapy, 10 (2), 302–317. https://doi.org/10.1016/j.ymthe.2004.05.024...the production of AAV vectors . Microorganisms, 12 (2), 384. https://doi.org/10.3390/microorganisms12020384...retrograde access to projection neurons . Neuron, 92 (2), 372–382. https://doi.org/10.1016/j.neuron.2016.09.021...our adeno-associated viral vector guide to learn about AAV vector components, production and common uses...E2a and VA for replication. For more information about adenovirus, read our Adenoviral Vector Guide . Recombinant... -
Technologies Enabled by NanoLuc® Luciferase
TypeBlog Post...the system outlined in Schmid-Burgk, J.L., et al (2). In this post, I’ll cover two great applications ...molecularly evolved from mNeptune2 through 33 mutations and 2 deletions. CyOFP1 has a higher quantum yield, brightness...luciferin 24 hours later demonstrated a more than 2-fold brighter signal from Antares as compared to Fluc...PMID: 22894855. PubMed Central PMCID: PMC3501149. 2. Schmid, J.L., et al. (2016) CRISPaint allows modular...Blog Learn more about FRET Tips for Using FRET in Your Experiments Learn more about Fluorescent Protein...heme-containing proteins in whole animals, light at or above 600 nm wavelengths should be used. Researchers often... emits light at a tissue-penetrating wavelength above 600 nm. LumiFluors Schaub, F.X., et al. (3) designed... -
Plasmids 101: Colony PCR
TypeBlog Post...design primers to detect the presence of your insert; 2) set up a standard PCR reaction (primers, dNTPs, polymerase...strategies for primer design: 1) insert-specific primers, 2) backbone-specific primers, and 3) orientation-specific...negative clone (-) will not. Backbone-specific primers (2) give larger sized products for positive clones (+...SLIC cloning Learn about Gibson Assembly Additional Resources on Addgene.org Read about Choosing a Molecular...this type of primer does not provide information about the orientation of the insert. Orientation-specific...Orientation-specific primers: If you need information about insert orientation, then you might consider designing orientation-specific...insert Backbone-Specific Provides information about the size of the insert and if it's in the plasmid... -
Cloning Mammalian Cells with the Agarose Method
TypeBlog Post... then overlaid with the firmer 2% agarose gel solution discussed above for picking. Many thanks to our...3 plates at different densities for selection). A 2% agarose solution is then melted (and thereby sterilized...96-well assay plate. We generally freeze at least 2 ampules each of 4 clones with different levels of ...specific genes. Many years ago, people in the laboratory became frustrated with using glass cloning rings...the hood. A 48-well plate is also prepared with about 200 ul of culture medium containing serum in each...incubator, additional growth medium is added to about halfway up each well. Tips for using the agarose... -
Three Key Considerations for Precise Neuronal Targeting Using AAV Technologies
TypeBlog Post... characteristics of select AAV serotypes in Table 2 from the paper. Delivery of AAV into the brain can...routes for neuroscience see Table 1 from the paper. 2. Manipulate your cell of interest: Cell-type specific...Learn more about retrograde AAVs Resources on Addgene.org Read our AAV guide Learn more about our viral... -
AAV Vector Quality Control: Going the Extra Mile with NGS
TypeBlog Post...the mixed sample in our pipeline (see Figure 2, sample 2). When we blindly analyzed AAV-68544, we were...look for potential contaminants. The analysis is a 2-step process using Geneious software: First, the individual...viral genome sequencing (VGS). Why should you care about viral quality control? AAV vectors are produced ... let us know if you have any specific questions about viral DNA NGS you’d like us to discuss. We are also...or at [email protected] to answer your questions about our quality control process! The images in this... -
Fluorescent Tagging of Endogenous Genes with SapTrap
TypeBlog Post...digestion of the destination vector with SapI yields 2 sites- the first site accepts the sgRNA target sequence...marker, and connector to be released (Fig. 1, Step 2-3). Since donor plasmids of the same type will produce... a gRNA vector that targets the gene of interest, 2) a plasmid to specify the reading frame of the insertion...tagged gene. Most insertions can only be detected by labor-intensive processes like PCR or by evaluating visual...repair after a CRISPR/Cas9 induced break. Learn more about these constructs and the cell lines they’ve been...Additional Resources on the Addgene Blog Learn about Fluorescent Protein Timers Check out Photoactivatable... -
Antibody Guide
TypeGuide...peptide linkers. Diabodies can be used for assembling protein nanostructures. Figure 2: An antibody (IgG...cells; function is unknown Monomer with a valency of 2 IgE Protects against parasites and is responsible ...such as anaphylactic shock Monomer with a valency of 2 IgG The most abundant isotype in blood, also found...secondary immune response Monomer with a valency of 2 IgG1; IgG2; IgG3; IgG4 IgM Produced during the primary... ranging from antibody fragments (shown in Figure 2) to completely unrelated molecules. Examples include...are often used in clinical applications. Diabodies - Diabodies contain two Fab fragments, each recognizing...cells isolated from animals immunized as described above are used to create hybridomas, which produce large... -
CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems
TypeBlog Post...base pair to another base pair at a specific site. 2. Temporal, spatial, or conditional control of CRISPR...difficult-to-engineer Sulfolobus islandicus rod-shaped virus 2 (Mayo-Muñoz et al., 2018). Only viral particles that...Editing of Sulfolobus islandicus Rod-Shaped Virus 2. Viruses 10:695 . https://doi.org/10.3390/v10120695...Bondy-Denomy et al., 2018). For example, AcrIIA4 mentioned above indicates that it’s the fourth Acr protein discovered...Cas9 Variant for Your Next Experiment Read more about Optogenetic Control of CRISPR Resources on Addgene.org... -
Cpf1 Update: Comparison to Cas9 and NgAgo
TypeBlog Post...Cpf1 is a single RNA-guided endonuclease of a class 2 CRISPR-Cas system." Cell (2015). PubMed PMID: 26422227... Find plasmids from this publication at Addgene. 2. Kleinstiver, Benjamin P., et al. "Genome-wide specificities...Cpf1 Is a Single RNA-Guided Endonuclease of a Class 2 CRISPR-Cas System. Cell. 2015 Sep 23. pii: S0092-8674...a cell culture model. What we still don't know about Cpf1 In their original paper characterizing Cpf1...Addgene Blog Catch Up On Your Cpf1 Background Read About CRISPR Competitor NgAgo Learn How You Can Use piggyBac...