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Showing: 281 - 320 of 731 results
  1. Antibodies 101: Affinity Reagents

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    ...in vivo, they have higher reproducibility and consistency in the final product. Because the constant (non-epitope... as ankyrin repeat proteins. DARPins typically consist of 3-4 repeats, have high specificity and binding...Targeting HER2/neu and CD16 Exhibit Improved Tumor Lysis When Placed in a Divalent Tumor Antigen Binding ...
  2. Plasmid Tools for Microbiome Studies

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    ...bumble bee and honey bee microbiome. The toolkit consists of modular parts that are assembled with Golden...plasmids and suitability of various antibiotic resistance markers, promoters, and inducible gene expression...into how the microbiome responds to infection, dysbiosis, and antibiotic treatment. To facilitate these...
  3. Pairing CombiGEM and CRISPR for Combinatorial Genetic Screening

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    ...your barcoded gRNA library sequences via oligo synthesis using the format indicated below and pool-clone... Wong et al 2015. Alan Wong is currently an Assistant Professor at the School of Biomedical Sciences...Timothy K. Lu. "Enhanced killing of antibiotic-resistant bacteria enabled by massively parallel combinatorial...
  4. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

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    ..., or other. Bacterial Resistance Enter bacterial antibiotic resistance encoded in the plasmid that...Cloning Method Choose from: Gateway cloning, gene synthesis, Gibson cloning, ligation-independent cloning,...
  5. CRISPR Activators: A Comparison Between dCas9-VP64, SAM, SunTag, VPR, and More!

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    ...Performance When targeting single genes, SAM consistently shows the highest levels of gene activation ...which are relatively large and are not expressed consistently throughout cells. VPR Description VPR fuses ... dCas9 to activate transcription. This complex consists of the VP64 activator used in other CRISPR activation...
  6. CRISPR in the Clinic

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    ...stem cells isolated from two patients with cystic fibrosis (Schwank et al). They were able to demonstrate...SCD in 2022 as well. Hereditary transthyretin amyloidosis (hATTR) hATTR is caused by a variety of single...Cas9 in Intestinal Stem Cell Organoids of Cystic Fibrosis Patients." Cell Stem Cell. 13, 653-658 (2013)....
  7. Hot Plasmids and Viral Preps - March 2021

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    ...categories: probes and editors. A probe array may consist of at least two sensor modules targeting a specific... which can be easily visualized.  The tool-kit consists of highly useful vectors compatible with Gibson...dCas9 expression and contain different antibiotic resistance markers. New CRISPR pooled library from Keith...
  8. Savvy Advocates Needed to Navigate a Scientific Enterprise in Flux

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    ...graduate students who work as teaching or research assistants to join unions. The topic of unionization continues...of Howell Communications Philip Brenner, PhD - Assistant Professor of Sociology. University of Massachusetts...PhD - Biotechnology Communications Specialist at AsisChem Inc. and Social Media Content Specialist at Thermo...
  9. Adapting Toehold Switches to Detect Zika Virus

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    ...gene networks for the detection of antibiotic resistance and strain-specific diagnostics for the Ebola...Pardee and Alexander Green! Keith Pardee is an Assistant professor in the Leslie Dan Faculty of Pharmacy...the environment.     Alexander A. Green is an Assistant professor at the Biodesign Center for Molecular...
  10. Reaching out to China: Canton Nucleic Acids Forum (CNAF) 2015

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    ...silencing of self-genes. Dr. Mello presented a hypothesis that these pathways are involved in RNA based...address the growing clinical problem of antibiotic resistant bacteria. See the picture to the left for his ... vectors are engineered to replace the drug resistantance genes in the bacteria thus making the bacteria...
  11. Illuminating Epigenetics with A FRET Based Biosensor

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    ...living cells. Essentially this reporter construct consists of one substrate (the histone-derived peptide)... of these sites was controlled, the reporter consistently showed significantly different FRET levels between...complex or multifactorial diseases, enabling faster diagnosis and treatment and improving patients lives. References...
  12. Fluorescent Tagging of Endogenous Genes with SapTrap

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    ...able to study many cellular processes, including mitosis, mitochondrial fission/fusion, nuclear import, ...several groups have designed modular toolkits to assist with tagging genomic loci in other model systems...including mammalian cells. CRISPaint (CRISPR-assisted insertion tagging), developed by the Hornung Lab...
  13. Cloning Mammalian Cells with the Agarose Method

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    ...cloning rings to isolate colonies of antibiotic-resistant cells; during the time required to grease, place... below) is simple: After obtaining antibiotic-resistant colonies, use a Sharpie to circle 12-48 individual...specific wells from the 48-well plate for further analysis. To assess CRISPR/Cas9 knockout efficacy, we have...
  14. Fluorescent Proteins 101: Fluorescent Protein Timers

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    Blog Post
    ...knowledge of protein structure and saturation mutagenesis. mK-GO matures from green to red, and the FT ...absorption spectra). Subach et al’s directed mutagenesis also produced the three separate timers shown...Age-dependent preferential dense-core vesicle exocytosis in neuroendocrine cells revealed by newly developed...
  15. Plasmids 101: Protein Expression

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    ...refers to the second step of this process: the synthesis of proteins from mRNA and the addition of post-translational...Overall the general strategy for protein expression consists of transfecting cells with your DNA template of...the infected host cell is eventually lysed. Cell lysis halts protein production, but there are non-lytic...
  16. PCR Applications for Copy Number Variation Assays

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    ...results you need.  Whichever method you choose, resist the temptation to over interpret your results: .... PMID: 15833050. Ma L, Chung WK. Quantitative analysis of copy number variants based on real-time LightCycler...amplification of Plasmodium falciparum multidrug resistance-1 gene (pfmdr1). J Parasitol. 2011 Oct;97(5):...
  17. Hot Plasmids: Summer 2025

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    ...TnpB (named ISYmu1) to the popular plant model Arabidopsis (Weiss et al., 2025). By co-delivering TRV1 with...editor for transgene-free germline editing in Arabidopsis. Nature Plants, 11(5), 967–976. https://doi.org...Figure 3: Using LARRYv2 libraries for state-fate analysis in ex vivo HSC expansion cultures. A) Experimental...
  18. Plasmids 101: Degron Tags

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    ...one.   SMASh Small molecule-assisted shutoff (SMASh) functions on the basis of both a degron and a viral...Given its popularity and widespread usage, a proteolysis-targeting chimera (PROTAC) was developed for ...
  19. Adenoviral Delivery of CRISPR/Cas9 Aims to Expand Genome Editing to Primary Cells

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    ...-transformed cells yielded rates of targeted mutagenesis similar to those achieved by isogenic AdVs encoding...Elsevier, pp 39–67 Ding Q, Strong A, Patel KM, Ng S-L, Gosis BS, Regan SN, Cowan CA, Rader DJ, Musunuru K (2014...CRISPR/Cas9 nuclease complexes induces targeted mutagenesis in a diverse array of human cells. Sci Rep 4:...
  20. MXS Chaining

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    ...the flanks of each ligation product, which is the basis for the repeatability of the method. Note that the... 4. Josse J, Kaiser AD, Kornberg A. Enzymatic synthesis of deoxyribonucleic acid. VIII. Frequencies of...Swartz MN, Trautner TA, Kornberg A. Enzymatic synthesis of deoxyribonucleic acid. XI. Further studies ...
  21. Great Results Start with Great Standard Curves

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    ...to 1:32. Each individual step of the series is consistent at 1:2. When preparing a dilution series, use...non-linear and you should use a different method of analysis. Different fields and assays have varying criteria...run.  When setting up your dilution series, use consistent dilution factors, change pipette tips regularly...
  22. Droplet Digital PCR for AAV Quantitation

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    ...the detection of rare sequences and single cell analysis. It is also being used in the detection of microbes... al. "Detection of circulating Mycobacterium tuberculosis-specific DNA by droplet digital PCR for vaccine...vaccine evaluation in challenged monkeys and TB diagnosis." Emerging microbes & infections 7.1 (2018): 1...
  23. INTEGRATE: Bacterial Genome Engineering Using CRISPR-Transposons

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    ...adapted for a wide variety of applications - as mutagenesis tools for genetic studies (e.g. using mariner...Insertion of Transposable Elements by Guide RNA-Assisted Targeting) by the Sternberg group, and CAST (CRISPR-associated...SE, Sternberg SH, Fernández IS (2020) Structural basis of DNA targeting by a transposon-encoded CRISPR–...
  24. Lentiviral Vector Uses and Overview

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    ...non-dividing cells. The first lentiviral vector system consisted of three plasmids: the packaging, envelope, and...other reporters, and they showed that expression persisted for at least thirty days. Although adeno-associated...integrate into the genome, they could promote oncogenesis by altering local gene expression. Self-inactivating...
  25. Minigenomes - a Safe Way to Study Dangerous Viruses Like the Ebola Virus

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    ...minigenome, the viral polymerase initiates RNA synthesis at the 3’ end of the minigenome to produce the...These products can be detected by Northern blot analysis. In addition, the polymerase will use the minigenome...mRNA can be detected directly by Northern blot analysis or RT-PCR. Uses of the minigenome system Minigenome...
  26. Cpf1: A New Tool for CRISPR Genome Editing

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    ...tracrRNA, crRNA guides are only ~42 nt long. Direct synthesis of these crRNAs should be significantly cheaper...rates, determined using sophisticated genome-wide analysis. At many of its computationally predicted off-...at Addgene. 3. Kim, Daesik, et al. Genome-wide analysis reveals specificities of Cpf1 endonucleases in...
  27. Interview: Hodaka Fujii on enChIP, New CRISPR Tools, and More

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    ...immunoprecipitation (locus-specific ChIP). These methods consist of insertional chromatin immunoprecipitation (iChIP...on development of technologies for biochemical analysis of genome functions such as transcription and ...technologies. The locus-specific ChIP technologies consisting of iChIP and enChIP are recent examples. We also...
  28. Advanced Uses of Cre-lox and Flp-FRT - A Neuroscientist’s View

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    ...Properties of FLP Recombinase Evolved by Cycling Mutagenesis.” Nature biotechnology 16(7): 657–62. PubMed ...Deleter Mouse in C57Bl/6 Based on FLPo Recombinase.” Genesis 48(8): 512–20. PubMed PMID: 20506501. 6. Logie,...Synapses Are Repeatedly Assembled and Removed at Persistent Sites In Vivo.” Neuron 89(4): 756–69. PubMed ...
  29. CRISPR 101: Targeting RNA with Cas13a (C2c2)

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    ...proteins within the bacterial genome. From this analysis, they identified 53 potential candidate genes ...within Cas13a are essential for RNA cleavage, consistent with known roles for HEPN domains in other proteins...located at the 3’ end of the spacer sequence and consists of a single A, U, or C base pair. In bacteria,...
  30. Plasmids 101: Broad Host Range Plasmids

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    ...that a plasmid can transfer to, replicate in, and persist in. Some plasmids have a narrow host range, while...host range recombinant vectors Replicons, which consist of a plasmid’s ori and all of its control elements...scientists can incorporate interchangeable antibiotic resistance cassettes (Prior et al. 2010), inducible promoters...
  31. Hot Plasmids - August 2020

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    ...CRISPR corner New from the viral service Faster catalysis after yeast-based protein evolution By Joanne ...evolution platform to generate TEV protease variants. Catalysis by TEV protease allows a transcription factor ...CRISPR/Cas Toolkit for plants includes 95 plasmids consisting of CRISPR/Cas nucleases, base editors, gRNA backbones...
  32. Binning Singletons: Tackling Conference Networking When You Don’t Know Anyone

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    ...singletons (reads that only appear once) in our analysis. Many pipelines toss these singletons out, and...stranger - Finding mentors for the meeting Just like analysis pipelines for DNA that group similar sequences...variability was organic, as some people need less assistance than others, but we did have some participants...
  33. How to Be an Excellent Trainee

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    ... is the person you report or talk to on a daily basis who will help you get on your feet with techniques...accordingly in case you have questions or need a little assistance at some point during the procedure. Be an active...everything is magically made up by helpful TAs or assistants, and sitting out on the bench waiting for you...
  34. Antibodies 101: Immunoprecipitation

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    ...concentration, ionic strength and pH, affect binding the lysis buffer may need to be adjusted depending on the ...include protease and phosphatase inhibitors in the lysis buffer, keep samples on ice, and perform the IP ...For mass spectrometry, elute in a urea-containing lysis buffer. Alternatively, the protein can also be eluted...
  35. CRISPR-based Genome Editing Systems For Editing in E. coli

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    ...pTargetF system Our original pCas/pTargetF system consists of one plasmid that expresses the S. pyogenes ...engineering case study of N-acetylglucosamine biosynthesis, we constructed a strain library with 1-11 copies... modified pCas/pTargetF system for CRISPR-Cas9-assisted genome editing in Escherichia coli. Acta Biochimica...
Showing: 281 - 320 of 731 results