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We narrowed to 809 results for: mal

Showing: 301 - 320 of 809 results

  1. Human Germline Editing Using CRISPR

    Type
    Blog Post
    ... an autosomal dominant mutation in MYBPC3 that leads to hypertrophic cardiomyopathy. An adult male with...term ‘editing.’ While repair using endogenous chromosomal DNA is appealing for heterozygous mutations, ...they limited their whole genome sequencing to a small percentage of edited embryos. Since the embryos ...

  2. Summer SciComm: Preprints

    Type
    Blog Post
    ...ways scientists communicate with each other: from formal mechanisms like publishing a research article, ...or submitting patent or grant applications; to informal settings like lab meetings, Twitter, coffee chats...before, submitting the manuscript to a journal for formal peer review. Some organizations, including some...preprints are eventually published in journals after formal peer review, with the earlier attention and feedback...

  3. Tagging Optogenetics and Chemogenetics Receptors: Fluorescent Proteins and Other Options

    Type
    Blog Post
    ... were in the cytoplasm of dendrites, and only a small proportion were found on the plasma membrane (top...neurons, most of them were still cytoplasmic. Use of ‘small’ tags to identify proteins Given the limited expression...plasma membrane. The haemagglutinin (HA) tag is a small 9 amino acid epitope of the haemagglutinin of the...mice and monkeys. Surprisingly, we found that this small change made a big difference. Replacing the mCherry...

  4. To Each HIS Own

    Type
    Blog Post
    ...long. The small size of the polyhistidine tag minimizes the chance of the tag disrupting normal protein ...function. In contrast, the polyhistidine tag is very small and rarely affects protein function (Bornhorst 2000...histidine-containing protein contamination, such as mammalian production systems, consider using these more ...

  5. All in a Twist: dsRNA

    Type
    Blog Post
    ... and have a diverse range of functions within mammalian cells. Here, we will cover how these structures.... Unlike dsRNA, DNA:RNA hybrids are abundant in normal cells and are arise from a ssRNA engaging one strand...putting DNA at risk. Consequences of duplexed RNA Mammalian cells have multiple receptors in place to sense...strands to re-pair. The two dominating RNases in mammalian cells (RNase H1 and H2) handle most of these intermediates...

  7. Hot Plasmids - October 2020

    Type
    Blog Post
    ...challenging as they are great in number, generally very small, and can contain different neurotransmitters. Using...traditionally introduced in Caenorhabditis elegans on extrachromosomal arrays can lead to artifacts due to overexpression...used CRISPR with a ssODN template to introduce the small wrmScarlet11 which is less than 60 nt in length ...active in vitro and in human and plant cells. Its small size offers advantages for cellular delivery. Get...

  8. CRISPR 101: Anti-CRISPR Proteins Switch Off CRISPR-Cas Systems

    Type
    Blog Post
    ...). Anti-CRISPR (Acr) proteins are phage-derived small protein inhibitors of CRISPR-Cas systems that help... Acr proteins by inducible promoters, light, or small molecules could achieve rapid, dynamic, and spatial...cytotoxicity of CRISPR-Cas editing in tissues The small size of Acr proteins (~50-200 amino acids) means...is where Acr proteins come in. Acr proteins are small enough that they could be engineered to “armor” ...

  9. Synthetic promoter AAVs for cell-type specific expression in retinal cells

    Type
    Blog Post
    ... neuron’s projections. Generating animal models: Transgenic animals allow for the expression of genes ...time-consuming to generate, especially for large animals such as primates. Viral vectors with cell-type ...to restrict expression of a gene interest in an animal model. A toolkit of synthetic AAV promoters The...

  10. 5 Tips for Troubleshooting Viral Transductions

    Type
    Blog Post
    ...An estimated 320,000 viruses can infect mammals. Even more abundant are the Earth’s estimated 1031 bacteriophages...by resuspension of the collected particles in a smaller volume. Always remove packaging cell debris before...strategy to estimate unknown viral diversity in mammals." MBio 4.5 (2013): e00598-13. PubMed PMID: 24003179...events during integration of transfected DNA into normal human cells."Nucleic acids research 18.9 (1990)...

  11. Cpf1 Update: Comparison to Cas9 and NgAgo

    Type
    Blog Post
    ...homology-directed repair. Both Cpf1 and its guide RNAs are smaller than their SpCas9 counterparts, so they will be...in length, respectively, larger than SaCas9 but smaller than SpCas9. These nucleases should fit well into...the newly described non-CRISPR protein NgAgo is smaller than any of these options (2.7 kb with 24 nt guides...efficiency of two Cpf1 orthologs known to be active in mammalian cells, LbCpf1 and AsCpf1. In both reports, on ...

  12. Plasmids 101: Terminators and PolyA signals

    Type
    Blog Post
    ...types of RNA: Polymerase I is responsible for ribosomal RNA, Polymerase II is responsible for mRNA and...seems to couple termination with polyadenlyation. Mammalian expression plasmids are primarily used to create...create mRNA and the commonly used mammalian terminators (SV40, hGH, BGH, and rbGlob) include the sequence...commons.wikimedia.org/w/index.php?curid=17554393   Use of mammalian poly(A) signals in combination with certain viral...

  13. Reaching out to China: Canton Nucleic Acids Forum (CNAF) 2015

    Type
    Blog Post
    ...hundreds of stalls selling a myriad of items, only a small number of which I could identify. There were dozens...fragments of these transcripts. I remember when small RNA was just something we ran off the bottom of ... replication. He too mentioned how “surprising” small RNAs can be and posited that “we underestimate living...covalently closed RNAs seem to be conserved in mammals, expressed in neurons, and are especially abundant...

  14. Illuminating Epigenetics with A FRET Based Biosensor

    Type
    Blog Post
    ...paternal or maternal copy of the gene is expressed in normal individuals (in a parent-of-origin-specific manner...because too much or too little gene product disrupts normal function. Angelman syndrome is characterized by...both cases, the other copy of the chromosome is normally imprinted and silenced, and so the syndromes are...supply influenced cardiovascular mortality of the female grandchildren." BMC genetics15.1 (2014): 12. PubMed...

  15. Multiplexed Capture of Promoter-enhancer 3D Chromatin Structures Using CRISPR

    Type
    Blog Post
    ...interactions, a restriction enzyme digest cuts DNA into smaller pieces, and proximity ligation creates chimeric...complexes are cross-linked, DNA is digested into smaller pieces. Sticky ends created are then ligated together...physically located. DNA is then sheared into pieces small enough to be pulled down via streptavidin IP. Biotinylated... sequence that is recognized by biotin ligases normally expressed in eukaryotic cells. Using this tag ...

  16. The AAVantages of AAV in CRISPR Screens

    Type
    Blog Post
    ...of hundreds to tens of thousands of genes with minimal effort. The versatility of Cas effectors allows... the host genome. AAV instead relies mainly on episomal expression. Episomes are circular pieces of DNA... pool for downstream NGS and means you can use smaller volumes of your library for each experiment. Additional...to use variants of Cas9, like split Cas9, or a smaller Cas9 ortholog like SaCas9. You could even venture...

  17. Magnetic Control of Proteins: More than a Dream

    Type
    Blog Post
    ...Matsuoka et al., 2023), but these effects were very small or were possible only in non-biological conditions...slight but detectable change in fluorescence when a small magnet was passed over the sample (Frank Hayward...license. They did more experiments to see if any small molecules act as a cofactor (among others, flavins...clearly visible whether expressed in E. coli, in mammalian cells, or in purified form, and didn’t need any...

  18. PITChing MMEJ as an Alternative Route for Gene Editing

    Type
    Blog Post
    .... optimized the PITCh-gRNA for minimal off-target binding in mammalian genomes as assessed by CRISPR design... of alternative end-joining, requires only very small homology regions (5-25 bp) for repair, making it...similar to HDR, but it is accomplished using much smaller regions of homology, which facilitates easier cloning...

  19. The Effect of COVID-19 on Liu Lab Plasmid Requests From Addgene Data

    Type
    Blog Post
    ...uncertainty estimates for each parameter, we added log-normal noise to each of the terms which make up our distribution...of the product of a Poisson and multivariate log-normal likelihoods. Effects of weekends, winter break... effects. Values are the inferred percentage of normal activity (the average rate of unique PIs/labs placing...lockdown), request activity appears to return to normal. The model fit these two discrete phases with an...

  20. DNA Purification Without a Kit

    Type
    Blog Post
    ... columns, it’s bound to glass syringe filters. Normally DNA does not bind silica or glass, but the addition... Starting material: plant, microbe, blood, or mammalian cells or tissue Product: total nucleic acids While...purify DNA and RNA from plants, microbes, blood or mammalian cells in 30 seconds or less without using a pipette...(2017). Nucleic acid purification from plants, animals and microbes in under 30 seconds. PLoS biology....
Showing: 301 - 320 of 809 results