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We narrowed to 393 results for: ARA-2

Showing: 101 - 120 of 393 results

  1. Predicting Adverse Reactions to Monoclonal Antibody Drugs

    Type
    Blog Post
    Published
    Feb. 13, 2024, 2:15 p.m.
    ...various components of the immune system. Figure 2: In-vitro models for immunogenicity prediction of ...drug reaction. This system would somewhat act like a 2-step verification. All approaches have their own limitations...Future Enhancements. Frontiers in drug discovery, 2, 952326. https://doi.org/10.3389/fddsv.2022.952326Joubert...ADAs can inactivate the drug and increase drug clearance, lowering its efficacy and increasing the risk...Efforts to predict T cell epitopes focus on characterizing those epitopes as CD8 or CD4 epitopes, as well...

  2. Year of the Camelid: Antibody Style

    Type
    Blog Post
    Published
    May 9, 2024, 1:15 p.m.
    ...and a source of sdAbs (Figure 2) (Xu, et al., 2021).      Figure 2: Genetically modified mice offer... from camelid mice and llamas neutralize SARS-CoV-2 variants. Nature 595:278–282. https://doi.org/10.1038...2024 the International Year of Camelids. The declaration is intended to raise awareness of the economic...

  3. Hot Plasmids and Viral Preps - January 2021

    Type
    Blog Post
    Published
    Jan. 5, 2021, 2:15 p.m.
    ... Opto-Cre-Vvd is fast and can cut in as little as 2 hours.  Sheets, MB, et al., ACS Synth Biol. 2020....they investigated three Casɸ orthologs, Casɸ-1, Casɸ-2, and Casɸ-3. This system is notable for several reasons...a minimal PAM requirement. For instance, for Casɸ-2 the PAM sequence is 5’-TBN-3’ (where B is G, T, or...deposited by Leopold Parts. This library delivers 2 randomly paired guides per construct and allows a ...crRNA-guided DNA cutting, unlike other well-characterized Cas enzymes, which rely on multiple active sites...

  4. Viral Vectors 101: Calcium Sensors

    Type
    Blog Post
    Published
    Aug. 10, 2023, 1 p.m.
    ...calcium biosensor, so that the (1) binding of calcium, (2) allosteric rearrangements of the sensor, and (3) ...user-controlled illumination with violet light and (2) exposure to increased intracellular calcium. It has...dynamics in vivo. Neuroscience Research. 2021 Aug 1;169:2-8. Suzuki J, Kanemaru K, Iino M. Genetically encoded...experiment with a sensor that is tuned to your parameters.   Kinetics How fast is the process you would...used calcium reporters with different kinetic parameters. There are three GCaMP types based on their kinetics...available with improved kinetic and sensitivity parameters. Sensitivity and Localization The calcium concentrations...to go. Pro tip: Vectors with ready-to-use AAV preparations are labeled with the green virus particle on...

  5. Viral Vectors 101: What is a Virus (and a Viral Vector)?

    Type
    Blog Post
    Published
    Aug. 18, 2023, 4:15 p.m.
    ...developed around how they replicate (Figure 2). Figure 2: Baltimore replication classes. Image credit...safer viral vectors that can be used in BSL-1 or BSL-2 labs. Viral vectors are viruses that have been genetically...genes for the required proteins are packaged in separate plasmids and expressed via cells cultured with...

  6. Pairing CombiGEM and CRISPR for Combinatorial Genetic Screening

    Type
    Blog Post
    Published
    April 12, 2016, 2:30 p.m.
    ...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...has been successfully applied to functionally characterize combinatorial gene knockouts generated via multiplexed...antibiotic-resistant bacteria enabled by massively parallel combinatorial genetics." Proceedings of the National...PMC3972032. 10. Wong, Alan SL, et al. "Massively parallel high-order combinatorial genetics in human cells...

  7. Educational Planarian Tools for Teaching Developmental Biology Techniques

    Type
    Blog Post
    Published
    May 24, 2018, 1:20 p.m.
    ... was first discovered and characterized in an unrelated worm (C. elegans) [2]. Delivering dsRNA matching...neoblast cells and the gene Prohormone convertase 2 (pc2) labels the central nervous system. Evaluating...223). Link: http://abt.ucpress.edu/content/79/3/208 2. Fire, S. Xu, M.K. Montgomery, S.A. Kostas, S.E. Driver...Ross, Sofia M. C. Robb, Sarah A. Elliott, Kimberly C. Tu, Alejandro Sánchez Alvarado, The American Biology...riboprobes are created, the WISH protocol involves preparation of the tissue sample, several washes, and temperature...PMC304099. Additional Resources on the Addgene Blog Arabidopsis in Education Learning Synthetic Biology with ...

  8. OCaMP: A New Calcium Indicator for Neural Imaging

    Type
    Blog Post
    Published
    Aug. 19, 2025, 1:15 p.m.
    ...the fluorescent protein mOrange2 (Figure 2). Figure 2: OCaMP structure and mechanism of action...module_attribute "schema_version" is_json="true" %}{% raw %}2{% endraw %}{% end_module_attribute %}{% module_attribute...Whether you're working with cell cultures, slice preparations, or in vivo imaging, there's a version that ...the science behind OCaMP, including detailed characterization as protein or in neuronal cultures, zebrafish...

  9. The time and cost required to make a plasmid

    Type
    Blog Post
    Published
    March 23, 2023, 1:15 p.m.
    ...required to make a plasmid. In 2023 (and at closer to 2 million plasmids shared than not!), we think it’s ...time does it take to make a plasmid? Figure 2: Survey results from a Twitter poll run in 2023, n...go wrong, replace them for free. Plasmids ship out 2-3 days after ordering, making it a toss-up as to whether...relevant work in your field! However, there’s no guarantee you’ll get a response on the first try (or any...at a time, try constructing several plasmids in parallel. That way, you can run one PCR, one gel, etc. ...

  10. Troubleshooting Your Plasmid Cloning Experiment

    Type
    Blog Post
    Published
    Sept. 24, 2019, 12:55 p.m.
    ...point could be a molar ratio of 1:2 (plasmid:insert), but this parameter has to be optimized according to... working with is correct. It's also best to use 1-2 ug of the vector for digestion. PCR Design primers...colonies (5-10) and grow them in a small culture volume (2 or 3 ml) containing the corresponding antibiotic, ...to be strategy specific, there are few general parameters that you can adjust: temperature and time of ...

  11. Viral Vectors 101: Integrase-Deficient Lentiviral Vectors

    Type
    Blog Post
    Published
    May 13, 2025, 1:15 p.m.
    ...or non-homologous end joining (see Figure 2).  Figure 2: Schematic representation of integration...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...our knowledge here, the Pol gene encodes three separate enzymes that are proteolytically processed from...

  12. Plasmids 101: Restriction Cloning

    Type
    Blog Post
    Published
    Feb. 18, 2016, 3:42 p.m.
    ... 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...slower than smaller linearized fragments. You can separate your backbone away from any inserts cut out of...

  13. CRISPR-Cas14: a family of small DNA-targeting enzymes enabling high-fidelity SNP genotyping

    Type
    Blog Post
    Published
    Nov. 29, 2018, 1:53 p.m.
    ...of other Cas proteins found in the so-called class 2 CRISPR-Cas systems. There are 24 variants of the cas14...the presence of infectious organisms (ex: SARS-CoV-2) and genetic mutations. By providing a gRNA specific...Department of Energy’s Joint Genome Institute for uncharacterized genes that were proximal to a CRISPR array ...presence of a predicted RuvC nuclease domain, characteristic of CRISPR-Cas enzymes. In contrast to other...

  14. Pathways Over Time Plasmids Engage Students in Functional Genomics Research

    Type
    Blog Post
    Published
    May 22, 2018, 1:38 p.m.
    ...research experiences to undergraduate students (1, 2), but educators face significant challenges in designing... by western blotting in other experiments (Figure 2).   Complementation reveals conservation of function...Biology Education: A Call to Action, Washington, DC. 2. President's Council of Advisors on Science and Technology...Functional characterization of the Saccharomyces cerevisiae genome by gene deletion and parallel analysis...cerevisiae (Figure 1) occurs through a well-characterized pathway with multiple enzymatic steps (5). In.... cerevisiae met deficiencies (manuscript in preparation), indicating that Met protein functions have ...

  15. Adeno Associated Virus (AAV) for Cell and Gene Therapy

    Type
    Blog Post
    Published
    Nov. 7, 2017, 1:59 p.m.
    ...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...common cytokine receptor gamma chain (c) and is characterized by a lack of immune cell development and function...first discovered as a contaminant of adenovirus preparations. It is an icosahedral, non-enveloped virus that...repair via homology directed repair (HDR). This characteristic makes AAV vectors especially amenable to correcting...caused by mutations in the gene RPE65. It is characterized by childhood onset of blindness and was thought...

  16. Tetbow: Bright Multicolor Labeling for Neuronal Tracing

    Type
    Blog Post
    Published
    Jan. 24, 2019, 2:24 p.m.
    ...possible when each of the XFP genes is introduced at ~2 copies per cell per color, following a Poisson distribution...(prepared with Addgene #104110 - #104112) (Figure 2). We’ve also created constructs with containing chemical...AAV titer - The XFP genes have to be introduced at ~2 copies per cell per color to achieve the highest color... levels of XFPs - Reduce the amount of tTA. Paradoxically, too much tTA leads to a reduced expression ...

  17. The Developmental Studies Hybridoma Bank: Over 25 Years of Antibody Sharing

    Type
    Blog Post
    Published
    March 10, 2015, 2:25 p.m.
    ...human transcription factors such as PAX7, PAX6, AP-2 alpha and ISLET-1. In addition, we distribute monoclonal... example through the use of less toxic adjuvants; 2) generating complex antibody chips that allow assessment...variable, allowing exquisite specificity. This characteristic allows monoclonal antibodies to be used as ...

  18. AAV Vector Quality Control: Going the Extra Mile with NGS

    Type
    Blog Post
    Published
    Sept. 12, 2017, 1:44 p.m.
    ...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...Léger A (2015) Advanced Characterization of DNA Molecules in rAAV Vector Preparations by Single-stranded Virus...especially important when producing multiple vectors in parallel because the risk of accidental errors increases... be used to identify DNA contaminants in AAV preparations and provide information on these DNA species...pioneering the systematic use of this new QC assay to guarantee that you receive the best AAV vectors for your...Identity of Recombinant Adeno-Associated Viral Preparations from Viral DNA Extracts. Human Gene Therapy ...

  19. Cpf1 Update: Comparison to Cas9 and NgAgo

    Type
    Blog Post
    Published
    July 14, 2016, 2:30 p.m.
    ...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...also called Cas12a. In 2015, Feng Zhang’s lab characterized two Cpf1 nucleases, distant cousins of well-...Until recently, two major elements of Cpf1 characterization were missing: on-target and off-target editing...efficiency. Kim et al. and Kleinstiver et al. characterized genome-wide editing efficiency of two Cpf1 orthologs...lower than that of the widely used SpCas9 and comparable to SaCas9. As seen with Cas9 orthologs, Cpf1 ...

  20. Fluorescent Proteins 101: Introduction to FRET

    Type
    Blog Post
    Published
    June 27, 2017, 1:03 p.m.
    ... 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...various papers to make the decision easier. 1. Müller, Sara M., et al. "Quantification of Förster resonance ...donor and acceptor fluorophores are fused to two separate proteins. (In contrast, intramolecular FRET probes...error in suboptimal or undetectable FRET, well-characterized FRET reference standards can be used to validate...
Showing: 101 - 120 of 393 results