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We narrowed to 811 results for: lars

Showing: 161 - 180 of 811 results

  1. Golden Gate Assembly Upgrades: More Fragments, Faster Assembly, and Higher Fidelity

    Type
    Blog Post
    Published
    Oct. 11, 2018, 12:30 p.m.
    ...Find basic molecular biology protocols Find plasmid cloning protocols Check out our molecular biology reference...one-pot” reaction to form complex, multi-insert modular assemblies that enable biosynthetic pathway engineering...destination vector receives the assembly after similar Type IIS restriction enzyme cutting results in ...performed additional efficiency measurements using similarly sized Lambda amplicon inserts to control for any.... To compensate for this, researchers can plate larger volumes of the outgrowth containing the transformants...assembly. The fidelity data can be applied to derive similar high-fidelity overhangs for any Golden Gate assembly...England Biolabs, Inc.         Eric Cantor is a molecular biologist and a Development Group Leader overseeing...

  2. Addgene's Cancer Collection Pages Connect the Research Community

    Type
    Blog Post
    Published
    Sept. 6, 2016, 2:30 p.m.
    ...at the molecular level, at the cellular level there is a universal theme - uncontrolled cellular proliferation... no other disease receives as many billions of dollars in funding or as much attention collectively from...causes of this uncontrolled proliferation, in particular the roles of proto-oncogenes, tumor suppressors...the accelerator of a vehicle being stuck down. Similarly, a mutation that turns a tumor suppressor “off...universally-dividing behavior of cancer cells, attacking the cellular machinery necessary for division. This approach...research has focused on picking apart the complex cellular pathways involved in the development of different...

  3. Which Fluorescent Protein Should I Use?

    Type
    Blog Post
    Published
    May 20, 2014, 2:06 p.m.
    ...and Biosensors: Throwing color lights on molecular and cellular processes” Curr. Protein. Pept. Sci. 9(...discovery, the family of FPs just keeps getting larger with hundreds of variants available. Read on to.... Therefore, these can be used as “timers” for cellular processes following their activation. The four... called Slow-FT, Medium-FT, Fast-FT, and mK-GO. Large Stokes Shift (LSS): Stokes shift (named after George...split FP. This technique is also is also called Bimolecular Fluorescence Complementation (BiFC). 8 points...The maturation of the chromophore on many FPs (particularly those derived from GFP) requires oxygen. Therefore...interested in everything related to gene expression, particularly at the RNA level. He maintains the greenfluorescentblog.wordpress.com...

  4. A Primer on Optogenetics: Introduction and Opsin Delivery

    Type
    Blog Post
    Published
    Sept. 10, 2015, 2:30 p.m.
    ... activated at a similar spectrum as HR and also results in membrane hyperpolarization but unlike HR, this...Simon! Derek P. Simon received his PhD in Cellular and Molecular Biology from the University of Michigan...neuron in a specific brain region can result in a particular neurotransmitter release or post-synaptic current...the kinetics of the opsin variant, and other particularities that best suit your specific experiment. Consult...cation channel, activation of which results in depolarization and subsequent firing of an action potential...results in efflux of chloride ions, subsequent hyperpolarization, and inhibition of action potential generation...crossed with an appropriate mouse line expressing a particular cre, viral expression of your opsin is no longer...

  5. Lentiviral Vector Uses and Overview

    Type
    Blog Post
    Published
    May 19, 2016, 2:30 p.m.
    ...the most popular and useful viral vectors in the lab. Advantages of lentivirus include a large genetic ...genetic cargo (8 kb vs 4.5 kb), and they remain popular for targeting and tracing cells in the brain (Figure...vectors in the lab Lentiviral vectors are incredibly popular in the lab - the Trono lab’s lentiviral packaging...the clinic Since lentiviral vectors can deliver a large amount of DNA (~8 kb) with a relatively low immune...lentiviral vectors for applications that require the large genetic capacity of a lentiviral vector but for ...PubMed PMID: 23322669. 6. Genetic treatment of a molecular disorder: gene therapy approaches to sickle cell...Dorazio R, Mulder GJ, Polack A, Bank A, Soulier J, Larghero J, Kabbara N, Dalle B, Gourmel B, Socie G, Chrétien...

  6. Minigenomes - a Safe Way to Study Dangerous Viruses Like the Ebola Virus

    Type
    Blog Post
    Published
    March 17, 2016, 2:30 p.m.
    ...minigenomes are incapable of producing infectious virus (similar to lentiviral vectors) because they do not encode...components of the Zaire ebola virus minigenome system Similar to other RNA viruses, EBOV brings its own RNA-dependent...which is formed by a complex of two proteins: the large (L) catalytic protein and its cofactor VP35. VP30...transcribed (and the viral mRNAs are translated) by cellular machinery. NP encapsidates the negative sense,...necessary control elements for each would be relatively large. Cloning the viral genes in this plasmid would be...polyadenylate the mRNA. These mRNAs are translated by cellular host machinery (as viral mRNAs would be in the...processes in extreme detail. The mechanism of a particular observation can be easily studied as each component...

  7. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...the entire proteome of a particular cell type, or a subset based on a cellular compartment or growth stage...Obrdlik, P., El-Bakkoury, M., Hamacher, T., Cappellaro, C., Vilarino, C., Fleischer, C., Ellerbrok, H., Kamuzinzi... and are still used extensively to screen for molecular interactions in the cell, including protein-protein...activities (1). Researchers also discovered the modular format of some transcriptional activators: that... yeast two-hybrid (Y2H) system as a robust and popular lab tool. In the classic two hybrid system (also...two-hybrid systems are a powerful tool for screening molecular interactions, accuracy and reproducibility are...

  8. Plasmids 101: Protein tags

    Type
    Blog Post
    Published
    Dec. 11, 2014, 4:26 p.m.
    ...one (admittedly large) class of common fusion protein tags. Biochemists and molecular biologists who need...challenges, researchers have amassed a considerable molecular tool box of tags and fusion proteins to aid in... interest to overexpress a protein. Energy and cellular resources are being spent to make something the...small sequence of amino acids, is basically a molecular leash for your protein. If you’re working with...; has inherent enterokinase cleavage site GST Large Protein 26 Purification and Stability Good for purification..., flanked by hexahistidine motifs (6xHis) MBP Large Protein  40 Solubility and Purification Can improve...Solubility and Affinity Abundance of charged and polar residues improves solubility; good for antibody-...

  9. Binning Singletons: Tackling Conference Networking When You Don’t Know Anyone

    Type
    Blog Post
    Published
    Feb. 18, 2020, 2:15 p.m.
    ...experiencing similar situations to themselves, allowed the participants to feel more comfortable at a large meeting...James from Binning Singletons. The sheer scale of a large conference can be intimidating. And it can be exacerbated...Just like analysis pipelines for DNA that group similar sequences together in bins, we thought that binning...structure and support network for people attending large meetings. A key was to provide each bin with a mentor...-meeting survey indicated that the program was largely a success, but also helped us find areas for improvement...greater effort in the future to match people within similar fields (ASM Microbe has eight tracks), something...despite the fact that it was gray. He has worked in molecular and microbiology for the last two decades as a...

  10. Deciphering the Mysteries of Behavior with Viral Vectors

    Type
    Blog Post
    Published
    Sept. 17, 2019, 12:40 p.m.
    .... However, most lesioning methods destroy areas larger than intended and may unintentionally remove connecting...an animal’s movement in an open field box or a circular corridor apparatus using a camera or tracking ... psychiatric diseases such as schizophrenia or bipolar disorder. In both diseases, animals have reduced...time in the open arm and were less risk averse. Similar to the elevated plus maze, the light-dark box is...protected) area. When measuring the time spent in a particular part of the apparatus, it turned out that the...downregulating expression of miR124a achieved a similar improvement in the forced swim test.  Another brain...this further and showed that the activity of a particular subset of excitatory neurons (Drd1) in mPFC is...

  11. New Tools Enable CRISPRa for Neuroscience Applications

    Type
    Blog Post
    Published
    July 2, 2019, 12:51 p.m.
    ... SPH mice CRISPRa has largely been limited to in vitro settings due to the large size of Cas9 activators...activators, which largely precludes delivery by adeno-associated vectors (AAV). This issue was recently circumvented...delivered to the CNS by lentivirus, which has a larger packaging capacity than AAV. Such an approach was...neuron-specific expression of dCas9-VPR (Figure 2), a popular Cas9 activator developed by the Church Lab. Neuron-specific...microglia are a notable exception) necessitates such molecular gymnastics for sensitive applications such as ...screening. The plasmids used by the Qi Lab for this particular application can be found here.  Why CRISPRa? ...well-suited, including studying mRNA dosing effects, cellular reprogramming, and disease modeling. Further, ...

  12. What's Your Organism? Expanding Genomic Tools via the NSF EDGE Program

    Type
    Blog Post
    Published
    May 2, 2019, 12:41 p.m.
    ...model organism blog posts: Five Popular Model Organisms, Part 1 Five Popular Model Organisms, Part 2 ...In this heyday of molecular biology, many scientists do a lot of DNA work but never get to actually manipulate...materials sharing in their dissemination plans and in particular, that they all share the plasmids created under...which have been used to treat heart disease. Caterpillars that eat milkweed generate cardenolides that... poisonous) for bird predators - birds eat a caterpillar once, vomit, and never do it again. Cichlids ...Crepidula atrasolea juvenile, light microscope with polarizing filter. Development is direct in this species... fascinating social behavior. For example, two similar species have very different social behavior. One...

  13. Sonic Hedgehog? Sleeping Beauty? Learn About the Genes Behind Addgene’s Conference Room Names

    Type
    Blog Post
    Published
    April 2, 2019, 1:44 p.m.
    ...important regulator of embryonic development The largest conference room at Addgene is named Sonic Hedgehog...segmentation during embryogenesis. Typically, regularly spaced denticles (bristles) outline the segments...contain SHH, you can find them all here! The most popular SHH plasmid however was deposited by none other...transposons as a non-viral system to integrate particular genes into mammalian genomes and easily disrupt...Ivics et al 1997. Spaghetti Squash, a regulator of cellular contraction You may think that a gene called "...the fly actomyosin cytoskeleton that regulates cellular contraction. This network is composed of actin...find the exact origin of this gene name but the larval gut of bagpipe mutants vaguely resemble a bagpipe...

  14. Bioinformatics at Addgene

    Type
    Blog Post
    Published
    July 14, 2022, 1:15 p.m.
    ...realized the need to modernize our approach to handle larger volumes of data. In this two-part blog series, ...software was originally designed to help us work in large formats, such as 96-well microplates, and thanks...which existing script(s) have been developed for a singular purpose (ex. adapter trimming, quality score analysis...or script will run and can be thought of as a particular step in the overall pipeline. By specifying the...container, we customized each container for its particular purpose and knew we could rely on the containers...oriented ourselves with the basic concepts and vocabulary of Nextflow so that we could translate our pipeline...concept of channels and implemented the input declaration correctly, the script block in the second process...

  15. Plasmids 101: Shuttle Vectors

    Type
    Blog Post
    Published
    May 20, 2025, 1:15 p.m.
    ...professor displayed a codon table — a chart every molecular biologist has seen before, showing how DNA sequences...into amino acids. And I was astonished that the molecular language shared by every living thing fit onto...different from other plasmids? If we all use the same molecular code, can I transfect any old bacterial plasmid...mammalian plasmids, mammalian vectors are even less similar to bacterial ones. The mammalian analogue of bacterial...oris to drive amplification, which helps increase cellular uptake, but this approach requires compatible ...machinery. Alternatively, some slow-growing cells, particularly mammalian cells like neurons, may not replicate... your vector. Some antibiotics block important cellular pathways shared by bacteria and eukaryotes. For...

  16. Healthcare Consulting: A Door to the Business of Life Sciences

    Type
    Blog Post
    Published
    Oct. 13, 2016, 2:30 p.m.
    ...understanding of the molecular behaviors of chemicals and proteins to learn how a particular drug or medical...novel drugs. Commercial Affairs teams make up a large and diverse group of professionals running the marketing...healthcare consulting firms can be involved in many similar activities depending on the expertise of the senior...challenging. For instance, the client might need to get a large amount of market research done to inform a go/no-go...might outline the impacts of combining targeted molecular therapies for cancer with chemotherapies, or developing... science and the commercial applications of a particular therapy. With your scientific knowledge behind... to a community of colleagues who are pursuing similar jobs and non-academic careers. Now, more than ever...

  17. Data Freedom: The Expansion of Data Sharing in Research Publications

    Type
    Blog Post
    Published
    Aug. 5, 2014, 6:51 p.m.
    ...datasets are too large to transfer to a journal repository, they are likely too large to be retrieved ... was necessary and reasonable. PLOS has since clarified their data sharing policy and recently announced...manuscripts that had been processed since the declaration, only a small fraction (<1%) of authors have ...their own data, with some smaller labs feeling that larger, better resourced, groups would harvest and reanalyze...efficiently trawled their own data? A distinct (perhaps similarly impoverished lab) might apply different or novel... PLOS’s credit, the organization subsequently clarified what the policy intent was and provided an FAQ...PLOS’ Bold Data Policy - by David Crotty (The Scholarly Kitchen) Read more Addgene blog posts about scientific...

  18. The 10 Most Distributed Plasmid Technologies in Addgene's First 10 Years

    Type
    Blog Post
    Published
    Jan. 8, 2014, 3:10 p.m.
    ...requested! Fire Lab C. Elegans Kit - Our first popular "kit," Andrew Fire's set of vectors for C. elegans... 2005. shRNA - In 2006, we saw an increase in popularity of empty backbones for shRNA expression, such...plasmids from Didier Trono's lab are our two most popular plasmids of the past 10 years. Induced Pluripotent...the most frequently requested. Ubiquitin - One particular gene we saw increased interest in from 2008 to...plasmid. A variety of plasmids continued to be popular years after they were added to the repository, ...activator-like effector nucleases (TALENs). Our most popular kit of the year was the Golden Gate TALEN Kit, ...Plasmids for fluorescent tagging have long been popular with scientists, but 2012 was marked by increased...

  19. Six Spooky Science Stories and Halloween at Addgene

    Type
    Blog Post
    Published
    Oct. 31, 2019, 1:06 p.m.
    ...birds spots the “caterpillar” and then poke out the snail’s eyes and ingests the larvae. The adult worms...biosynthesis in Drosophila melanogaster." Molecular and cellular endocrinology 215.1-2 (2004): 1-10. PubMed...snail’s eyestalks. Once ingested by the snail, the larvae reach the eyestalk and transform them into a pulsating...pulsating display imitating a moving caterpillar. The worm controls the snail’s behavior, forcing it out...parasite The parasitic worm Spinochordodes tellinii‘s larvae makes its home inside grasshoppers and crickets...

  20. SARS-CoV-2/COVID-19 Detection Methods Based on CRISPR/Cas

    Type
    Blog Post
    Published
    May 5, 2020, 1:15 p.m.
    ...sensitivity in the zeptomolar range while One-step-SHERLOCK has a sensitivity in the femto-aptomolar range. For...fastest test that has been developed so far.  A similar method has been optimized to detect the SARS-CoV...molecule per milliliter can be detected – in the zeptomolar range Time: ~1 hour Equipment required: 37°C ...and will not give a positive result for highly similar viruses. Unlike Cas12a, Cas13a does not require...illuminator or UV light illuminator. Approach: Highly similar to the SHERLOCK diagnostic test, this test varies...identification using FnCas9 (FELUDA) Sensitivity: – 110 femtomolar  Time: Not mentioned, likely ~1-2 hours Equipment...Shravanti Suresh is a PhD candidate who investigates cellular aspects of CRISPR/Cas immune systems in the Sashital...
Showing: 161 - 180 of 811 results