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We narrowed to 749 results for: SOM

Showing: 181 - 200 of 749 results

  1. Viral Vectors 101: The AAV Retrograde Serotype

    Type
    Blog Post
    Published
    April 27, 2023, 1:15 p.m.
    ...location and they either trace downstream from the soma (neuron cell body) toward the axon (anterograde ...tracer) or upstream from the axon terminals to the soma (retrograde tracer) (Fig. 2). Viruses as neuronal...retrograde transport efficiency in most serotypes. Some viruses (e.g., rabies) naturally exhibit retrograde...Skorput, 2022, Albaugh, 2020, Tervo, 2016).  In fact, some neuronal pathways may not be transduced at all by...you understand this new tool, go forth and trace some neurons!  This post was originally written by Leila...

  2. Communicating Your Science With Help From ComSciCon

    Type
    Blog Post
    Published
    July 19, 2018, 1:12 p.m.
    ...other slides in your deck.  If someone asks a question about something they did not understand about your...milestone in a scientist's career is mediated by some kind of communication to another person.  In an ...piece of feedback you receive generalizes.  If someone suggests a change to a slide, think about whether...scientists with opportunities to practice communicating.  Some fantastic K12 education initiatives like BiteScis...

  3. Protein Tagging with CRISPR/Cas9: A Conversation with Mendenhall and Myers

    Type
    Blog Post
    Published
    July 28, 2015, 2:30 p.m.
    ...also like to put some social pressure on many other labs that may be doing something similar. There may... hundreds of transcription factors. We wanted something that would allow automation. This design cuts ... when plasmids become available.  We’ve also had some requests for variations on the plasmids we’ve developed...may be other variants of this that are better for some experiments than those we’ve put up. We would encourage...

  4. RNA Extraction Without A Kit

    Type
    Blog Post
    Published
    March 24, 2020, 1:15 p.m.
    ...a kit that outlined several reasons why doing something without a kit has advantages: less plastic waste...and on everything, including your skin. Here are some general tips for working with RNA, even if you are...RNases are commonly found in cells, and without something to block RNase activity upon cell lysis, RNA is... strong protein denaturant would be required- something that broke down RNases before RNases had a chance...thiocyanate–phenol–chloroform extraction: twenty-something years on. Nature Protocols 1:581–585. https://...

  5. Summer SciComm: Preprints

    Type
    Blog Post
    Published
    Aug. 16, 2022, 1:15 p.m.
    ...a journal for formal peer review. Some organizations, including some journals, also support open peer ...committees, as opposed to the opaque (and, admittedly, somewhat meaningless) practice of listing “Submitted” articles...scientific communication needs. Going to present some unpublished results at a conference? Post your working... lack of awareness of the benefits of preprints. Some worry about faulty work being posted as preprints...

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

    Type
    Blog Post
    Published
    May 11, 2021, 1:15 p.m.
    ...studies provided evidence that some fluorescent proteins can be, in some circumstances, detrimental to ... can interfere with fused protein function Under some circumstances, the fused fluorescent proteins can... the opsin or chemogenetic receptor. However, in some cases the fluorescent signal may be critical for...in many studies, and could even be beneficial in some types of experiments (for instance, when the fluorescence...

  7. Celebrating 15 Years of Scientific Sharing

    Type
    Blog Post
    Published
    Jan. 14, 2019, 2:08 p.m.
    ...actually don’t have to worry about and that is something to recognize! Distributing plasmids, viral service...Diversification is happening. The Addgene team will have some fun challenges this year and I’m excited about this...community. In a recent law review article we received some entirely unsolicited praise: “Addgene, for one, ...to our legal team, and great customer service, somehow we have scientists actually loving the MTA?! ...program, and with other intern positions. We have an awesome talent pipeline. Turnover at Addgene is about...

  8. It’s Bioelectric! An Exciting Interdisciplinary Field of Research

    Type
    Blog Post
    Published
    Oct. 29, 2019, 2:52 p.m.
    ...and pumps in developmental biology.  Examples of some ion-channel and ion-pump encoding genes HCN1 KCNJ2...KCNJ2 KCNJ13 GABRG1 KCNIP2 KCNQ1 Examples of some genes encoding gap junction proteins cx43 GJB1 GJB2... of two cells) can also affect patterning and in some cases even override genetically encoded patterning...tools for studying bioelectricity in vivo. Here are some optogenetic and GEVI tools (as discussed in Mathews...signals affect pattern memory and decision-making in somatic cell networks. “Developmental bioelectricity is...

  9. Split Fluorescent Proteins for Studying Protein-Protein Interactions

    Type
    Blog Post
    Published
    May 3, 2022, 1:15 p.m.
    ...themselves can sometimes interact in cells and produce background signal (especially for some older split-GFP... example, EBFP2(1-10) can be used with GFP(11)). Some of the articles linked below only provide one fragment...complementary fragment. Next, let's look at a round-up of some new and popular split-FP plasmids from our catalog...interaction is typically irreversible and requires some time for chromophore maturation, splitFAST displays...

  10. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

    Type
    Blog Post
    Published
    Dec. 14, 2021, 2:15 p.m.
    ...laboratory of Dr. Moshe Szyf at McGill University. Some enzymatic fusions are godsends. Tethering dCas9 ...what was perhaps a slightly smaller population, something else was also suddenly cool: DNA methylation. ...with transcription machinery.   Well, I’ve got some good news: complete DNA demethylation can be achieved...in pluripotent cells at thousands of methylated somatic enhancers. Nat Genet 52, 819–827. https://doi.org... B (1983) Hypomethylation distinguishes genes of some human cancers from their normal counterparts. Nature...

  11. Gaining Leadership Skills Volunteering at a Professional Organization

    Type
    Blog Post
    Published
    Aug. 6, 2015, 2:30 p.m.
    ...overnight (however this can be done if you already have some leadership experience). I was involved with postdoctoral... tasks as things came up. For example, I updated some sections of the NPA’s website. By volunteering,...style and requirements of the new Board Members. In some instances I felt like I was going back to previous... according to the needs of my committee members. Some members would need much more guidance, direction... action, others would act more independently and some others would need regular re-direction and alignment...

  12. 7 Simple Strategies to Resolve Conflicts with Difficult Supervisors

    Type
    Blog Post
    Published
    Jan. 21, 2015, 1:30 p.m.
    ... and set some approximate timelines. Be sure that you keep your commitments, and if for some reason you...while also considering the needs of other people. Some students and postdoctoral fellows are hesitant about... does. You can save yourself and your supervisor some time if you come to every meeting with one or more...need to be more assertive to get your point across. Some supervisors might try to intimidate you with negative...

  13. Degrading DNA with Cascade-Cas3

    Type
    Blog Post
    Published
    Feb. 11, 2025, 2:15 p.m.
    ...is the chance of a chromosomal inversion, or just random mutations if the chromosome is repaired with all...small edits that change single base pairs, to chromosomal inversions and large deletions. Many of these...portion can be bypassed by leaving out Cas3 — a tactic some CRISPR transposase systems utilize with type I-F...two or more gRNAs must be used along the same chromosome. During DNA repair, there is a chance that the...

  14. Production of Virus in Insect Versus Mammalian Cells

    Type
    Blog Post
    Published
    Nov. 5, 2024, 8:32 p.m.
    ... need to be produced in bacteria cells. However, some viruses can be produced in multiple different cell...viral production, partially because they contain some of the necessary machinery to make these viruses...will depend on your specific virus, so this is something you may have to optimize for your specific application...taking your first round of virus, called P1 (or sometimes P0), infecting new Sf9 cells, and getting an amplified... and equipment. Hopefully this post has provided some insight on these differences in viral production...

  15. Magnetic Control of Proteins: More than a Dream

    Type
    Blog Post
    Published
    Sept. 24, 2024, 1:15 p.m.
    ... (Karki et al., 2021; Kattnig et al., 2016), and some previous attempts at magnetic control of biological... 2016; Duret et al., 2019). But the field has sometimes seen controversy, and the interactions of organic...project, Maria’s screens of AsLOV2 variants showed some significant gains! After a few more rounds of mutagenesis...collected a variety of data that might help formulate some hypotheses. They are excited to see other researchers... develops. And though it took a lot of work (and some luck) to get here, he believes MagLOV is just a ...

  16. Starter guide to induced pluripotent stem cells (iPSCs) part 1:  A renaissance in regenerative medicine

    Type
    Blog Post
    Published
    Oct. 30, 2018, 1:04 p.m.
    ...donor [7]. Adult stem cells (ASCs) Also known as somatic stem cells, these multipotent stem cells are located...advantages and disadvantages. Here is a table listing some of them: Characteristic ESC ASC Self-renewal...we’ll discuss the two widely used approaches of somatic cell conversion: conversion via iPSC formation,... reprogramming and, direct conversion from one somatic cell type to another, also known as transdifferentiation...pluripotent stem cell lines derived from human somatic cells. Science, 2007. 318(5858): p. 1917-20. PubMed...

  17. Plasmids 101: Protein Expression

    Type
    Blog Post
    Published
    June 7, 2018, 1:17 p.m.
    ...RNA (mRNA). mRNA can then be translated at the ribosome into polypeptide chains that make up the primary...applications In this blog post we will summarize some of the more common expression systems including ...high protein yields if transfection is successful. Some mammalian systems also allow for control over when... up for production of large amounts of protein. Some drawbacks of insect cell expression systems include...transcription and translation machinery. These include ribosomes, RNA polymerase, tRNAs, ribonucleotides and amino...

  18. Cloning Mammalian Cells with the Agarose Method

    Type
    Blog Post
    Published
    Sept. 7, 2017, 12:17 p.m.
    ...For some cells, add a drop of serum to aid in outgrowth. Depending on the cell type, we sometimes add ...colonies are well separated. For this, you need to have some idea of the rate of growth of your specific cell...well-spaced clones. For rapidly growing cells we sometimes use TPP peelaway T-75 flasks to provide a greater...endocrine cells. She can be emailed at ilindberg@som.umaryland.edu.   Additional Resources on the Addgene Blog...

  19. Fluorescent Proteins 101: Fluorescent Protein Timers

    Type
    Blog Post
    Published
    May 4, 2017, 2:30 p.m.
    ...models for trafficking to the lysosome by fusing Medium-FT to LAMP-2A, a lysosome-associated membrane protein...hypothesized to be a result of chromophore oxidation. Some of the more popular timers (whether as part of protein...cloning and makes your experimental setup less cumbersome. 3. Portability across multiple systems Terskikh...respectively. While Tsuboi et al developed mK-GO somewhat serendipitously while attempting to enhance mKO...

  20. Transgenic Organisms, Cas9 Gene Drives, and Appropriate Safeguards

    Type
    Blog Post
    Published
    May 22, 2015, 4:58 p.m.
    ...Populations: I. Cage Studies of Chromosome Replacement by Compound Autosomes in Drosophila melanogaster. ...heterozygotes, the endonuclease cuts the wild-type chromosome and its own gene is used as a repair template.... For example, Drosophila lines with compound autosomes are completely infertile when mated to wild fruit...which would represent proof positive that at least some scientists could not be trusted to handle such a...
Showing: 181 - 200 of 749 results