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We narrowed to 833 results for: Cat

Showing: 441 - 480 of 833 results

  1. Fluorescent Proteins 101: When GFP lets you down

    Type
    Blog Post
    Published
    Aug. 23, 2018, 12:05 p.m.
    ... proteins.Therefore, GFP is not suitable for applications that require anaerobic conditions. In experiments...an additional protein module that can report on location. This approach enables the study of proteins in...fusion with GFP allows for detection of genomic locations (Chen et al., 2013). GFP fluorescence overlaps...case when proteins undergo post-translational modification with fatty acyl chains. For instance, myristoylation...C-terminal consensus sequence (-CaaX). Both modifications are disrupted when GFP is fused to these sequences...

  2. CRISPR 101: Validating Your Genome Edit

    Type
    Blog Post
    Published
    Nov. 3, 2022, 12:15 p.m.
    ...how many copies you are looking for. Secondly, categorize your edit – is it any frameshift mutation? A ...enzyme screening for resistivity to digestion, indicating targeted edits.   Interested in this method...a manageable number of the higher probability locations. If you’re worried about off-target effects, you...Tao Chen, Jos Jonkers, Bas van Steensel. Easy quantification of template-directed CRISPR-Cas9 editing. (...and variant-aware in silico off-target site identification for CRISPR genome editing. (2019) Bioinformatics...

  3. Plasmids 101: Common Lab E. coli Strains

    Type
    Blog Post
    Published
    Nov. 7, 2014, 2:56 p.m.
    ...that carried out the labor-intensive process of replicating your new plasmid: the Escherichia coli bacteria...conjugation. Genes listed on F´ are wild-type unless indicated otherwise fhuA (formerly tonA) ferric hydroxamate...vectors. Used by Addgene for pooled library amplification. F' mcrA Δ(mcrBC-hsdRMS-mrr) recA1 endA1 gyrA96...typically standard; just having the gene listed indicates it is non-functional. If a gene is deleted, it... Most Popular Plasmids 101 Posts: Origin of Replication The Promoter Region – Let's Go! Mammalian Vectors...

  4. Viral Vectors 101: AAV Serotypes and Tissue Tropism

    Type
    Blog Post
    Published
    Jan. 16, 2025, 2:15 p.m.
    ...vessel barriers. It is especially popular for applications targeting liver tissue. In addition, it has ...the blood-brain barrier, making it useful for applications targeting the CNS (Issa et al., 2023). Additionally...treatment, which can pose problems for gene therapy applications. Cross-reactivity of AAV serotypes varies by...enhances astrocyte-directed transduction. Nature Communications, 14(1), 3792. https://doi.org/10.1038/s41467.... A. (2023). Various AAV Serotypes and Their Applications in Gene Therapy: An Overview. Cells, 12(5), ...

  5. Building Global Connections with the International Mentorship Program USA-EUROPE

    Type
    Blog Post
    Published
    Nov. 6, 2015, 3:30 p.m.
    ...Universities from five different geographical locations in Spain were enrolled: the University of Valencia...2014/2015, took place on July 27th, 2015 at a dedicated international mentoring conference held at the... own part, mentors receive immense personal gratification as they witness their student’s progress and...like IMP build bridges and global networks. They catalyze the development of knowledge, experience, resources...Mentoring Foundation for the Advancemnet of Higher Education website Resources at Addgene Read Other Career...

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

    Type
    Blog Post
    Published
    March 10, 2015, 2:25 p.m.
    ...target proteins of interest for labeling, quantification, purification, chromatin immunoprecipitation and more...created the Monoclonal Antibody Research Institute dedicated to: 1) developing new ways of generating antibodies...Freedom: The Expansion of Data Sharing in Research Publications ...

  7. Finding Your Science Policy Path

    Type
    Blog Post
    Published
    Sept. 22, 2020, 1:15 p.m.
    ... policy implementation, program management, communications, diplomacy and international relations, advocacy...they train and bring researchers to Congress to advocate for increased science funding and other issues...sets for a science policy career is science communication so an outsized way to prepare is to do lots ...Initiative.    Get practical experience in science communication by writing for the Journal of Science Policy...connect you with alumni before and during your application process so you can learn more! Figure ...

  8. An “elegans” Approach to Better CRISPR/Cas9 Editing Efficiency

    Type
    Blog Post
    Published
    Dec. 17, 2020, 1:30 p.m.
    ...Mello lab also reported that modifying the 5’ modification of oligos used to generate linear dsDNA repair...Efficient Marker-Free Recovery of Custom Genetic Modifications with CRISPR/Cas9 in Caenorhabditis elegans. ...Forstemann K (2014) Efficient chromosomal gene modification with CRISPR/cas9 and PCR-based homologous recombination...Watts JK, Sontheimer EJ, Mello CC (2018) 5′ Modifications Improve Potency and Efficacy of DNA Donors for...Colaiácovo MP (2013) Heritable Custom Genomic Modifications inCaenorhabditis elegansvia a CRISPR–Cas9 System...

  9. Plasmid Preps: Different Purity, Different Quantities, Different Uses

    Type
    Blog Post
    Published
    June 16, 2020, 1:25 p.m.
    ...that have been used during the purification procedure. Good indicators of DNA purity are the absorbance...nm should fall ~1.8 - 2 and give scientists an indication of purity versus protein contaminants. The 260...nm ratios should fall ~2 - 2.2, and provide an indication of purity versus chaotropic agents as guanidine...

  10. Our Most Popular Blog Posts from 2019

    Type
    Blog Post
    Published
    Dec. 31, 2019, 2:26 p.m.
    ...resources can now be found in one place: the Educational Resources page. So let’s get to it. Here’s the...Anti-CRISPR, 2in1 Cloning, Fluorescent Voltage Indicators, and Photoswitchable Proteins by Cary Valley,...protein size and shape, linker sequences, and fusion location, there are many choices to make. 2. Prime Editing...Resources at Addgene Browse the repository Find educational resources at Addgene Search for plasmids at Addgene...

  11. What's New in CRISPR - December 2019

    Type
    Blog Post
    Published
    Dec. 17, 2019, 2:37 p.m.
    ... adenine base editor variants using a protein-truncation strategy with reduced RNA-recognition capabilities...engineered tRNA adenosine deaminase (TadA) to a catalytically impaired Streptococcus pyogenes Cas9. They called... toolkit named ORANGE (Open Resource for the Application of Neuronal Genome Editing) mediates targeted...(A-to-I) RNA editor called REPAIR by fusing catalytically inactivated RNA-targeting Cas13 (dCas13) with...

  12. A new platform for fast functional characterization of potentially cancerous mutations

    Type
    Blog Post
    Published
    May 7, 2019, 12:39 p.m.
    ...Thousands of mutations have been implicated in cancer. Yet, the majority of them remain uncharacterized...Using data from The Cancer Genome Atlas (TCGA), a catalog of genetic mutations responsible for cancer from... of mutations they identified included gene amplifications and fusions, missense mutations, and indels...aberration drivers of pancreatic cancer." Nature communications 7 (2016): 10500. PubMed PMID: 26806015. PubMed...

  13. Using Ultrasound to Image Bacteria in vivo: Acoustic Reporter Genes

    Type
    Blog Post
    Published
    June 19, 2018, 1:38 p.m.
    ...Knowing where bacteria are located within their host is often key to understanding their role in both...reporters are not as well suited for imaging organs located deep in the body, like the gastrointestinal tract...lab recently discovered that gas vesicles also scatter sound waves and therefore produce signals in ultrasound... experiment to demonstrate the most exciting application for ARG’s: in vivo imaging. Specifically, arg1...

  14. Hot Plasmids and Viral Preps - July 2021

    Type
    Blog Post
    Published
    July 27, 2021, 1:15 p.m.
    ...be used to generate organoid cultures with a modification of interest. While the authors optimized the...mechanisms related to morphogenesis, cell fate specification, and human disease.     Sun, et al. bioRxiv...protoplasts, the enzymatic biosensor retains its catalytic activity.  As SLs are also known to trigger seed...parasitization of cereal crops. As a result, agricultural applications of these novel biosensors could have a major...

  15. Fluorescent Proteins 101: Fluorescent Biosensors

    Type
    Blog Post
    Published
    May 18, 2017, 2:30 p.m.
    ..., and you should always check the associated publication for the specifics of your chosen plasmid. Types...conformational changes, translation, and protein translocation. Targeting your biosensor Before expressing ...Experiments Experiment  Detection Method Notes Quantification of a process Plate-based assays (plate reader...components of individual cells Separation/identification of fluorescently-labeled components Fluorescence-activated...

  16. The Blue Flame Award: Celebrating Addgene's Most Requested Depositors

    Type
    Blog Post
    Published
    Nov. 14, 2016, 3:30 p.m.
    ...plasmids are categorized into a 3-level system on our website:   A yellow flame indicates that a plasmid...re proud to honor the creativity, passion, and dedication to sharing epitomized by the creators of these...Since we so sincerely appreciate our depositor’s dedication to scientific sharing, we wanted to celebrate...

  17. Plasmids 101: Gene, enhancer, and promoter trapping

    Type
    Blog Post
    Published
    May 2, 2023, 1 p.m.
    ...genes are truly dispensable or are the current identification methods missing something? Here we will review...review some time-tested gene identification systems that may have a leg up on their modern counterparts...considerable distance away from a gene which can make identification of the gene itself difficult. The best trap...transposon, and many more! Check out Addgene’s catalog to find trapping tools for your next experiment...

  18. Addgene at the ASM Microbe 2016 Conference

    Type
    Blog Post
    Published
    July 7, 2016, 2:30 p.m.
    ...symposia on Sunday afternoon were dedicated to science communication through art. Addgene Advisory Board...Waterlilies one!). As we dive more into science education and outreach ourselves, we can a learn a lot from... resource sharing and was also a great place to catch up with former colleagues! I ran into past ASM President...

  19. Networking and Inspiring Young Scientists at Freshers Fairs

    Type
    Blog Post
    Published
    Nov. 17, 2015, 3:30 p.m.
    ...sessions to help undergraduate students with their applications. The society currently has 1,283 members, who... society organizes numerous recreational and educational events throughout the year, including a Christmas...between biology and synthetic biology by providing education and networking opportunities for society members...and what benefits did they provide during your education? Let us know in the comments section below! Do...

  20. CRISPR Challenges: Standardization and Homology Directed Repair

    Type
    Blog Post
    Published
    Feb. 14, 2018, 2:36 p.m.
    ...the gRNA design process and rules for various applications is necessary going forward. The standardization... I think I may have finally grasped just how complicated DNA repair pathways are. I fully admit to being...Alt-NHEJ), has been harnessed for CRISPR knock-in applications. CRISPR 101: Targeting RNA with Cas13a (C2c2...for CRISPR Genome Editing Other resources and publications CRISPOR gRNA design tool Researchers at the ...

  21. RUBY-Red Siliques

    Type
    Blog Post
    Published
    March 1, 2022, 2:15 p.m.
    ...markers for plant transformation fall into two main categories: antibiotic/herbicide resistance and fluorescent...culture), which is great for a wide variety of applications. But some techniques require you to select against...these mutant plants. Using RUBY to simplify the identification of these mutants will speed up my work and ...student studying plant development and cell-cell communication in the Nimchuk Lab in the Biology Department...

  22. New and Upcoming Viral Vectors - Spring 2019

    Type
    Blog Post
    Published
    March 26, 2019, 1:40 p.m.
    ...kinetics) that makes them suitable for different applications. We recently released a new variant of jGCaMP7... been developed and are suited for different applications. The iGABASnFR GABA sensor (pAAV.hSyn-FLEX.iGABASnFR...availability date or to be notified when a particular catalog item is available for order please email [email protected] coming in our new 20 ul trial size! Voltage indicators Plasmid Serotype Name 119036  AAV1  pAAV-hsyn-flex-Voltron-ST...

  23. Behind-the-scenes of the Isolation of the Thermostable IgnaviCas9 From a Yellowstone Hot Spring

    Type
    Blog Post
    Published
    Nov. 12, 2019, 2 p.m.
    ...under harsh conditions. One example application from the publication is the removal of unwanted cDNA derived...the van der Oost lab. Phylogenetic comparison indicates that like GeoCas9 and ThermoCas9, IgnaviCas9 is...a thermostable Cas9 be useful? It can enable applications where reagents must be stored at elevated temperatures...

  24. Addgene's Top 10 Blog Posts of 2015

    Type
    Blog Post
    Published
    Dec. 7, 2015, 6 p.m.
    ...overjoyed to provide you with these fantastic educational resources and will be sure to keep our eyes open...used to generate inversions, deletions, and translocations. It also provides researchers with many different...repository use Cas9 to cut DNA, Addgene Science Communications Intern Mary Gearing explains how Cas9 homolog...make it easier to make gene edits at new genomic locations. 6. CRISPR 101: Non-homologous End Joining So ...

  25. 25 Work From Home Tips for Scientists

    Type
    Blog Post
    Published
    March 19, 2020, 1:15 p.m.
    ...for all ages. Organize your data and prepare publications or your dissertation Organize data that you...these drafts and for a few model organisms, Micropublication will accept negative data or publish brief...brief, novel findings. Most Micropublications contain one figure. If you aren’t there yet, write introductions...introductions to potential publications or prepare a review article. These are both options that can be done...

  26. DAP arrays for multiplex gene editing

    Type
    Blog Post
    Published
    July 7, 2022, 1:15 p.m.
    ...packaged into viral vectors for potential in vivo applications or multiplex CRISPR screening.   Using tRNAs...multiplex genome engineering of crops or allow for sophisticated CRISPR screenings that would perturb the unprecedented...and efficient in plasmid and viral vectors. In applications when repetitive tRNA sequences must be avoided...construct DAP array for multiplex gene editing applications, we provide detailed manual and online design...

  27. Visualizing Translation at the Single Molecule Level

    Type
    Blog Post
    Published
    Aug. 1, 2017, 1:15 p.m.
    ... While ribosome profiling co-opts the physical location of the ribosome, TRICK (Translating RNA Imaging...development, the osk-TRICK reporter was double labeled, indicating translational repression. During later stages...ribosomes after initiation, to calculate a ribosome translocation rate of ~3.5 codons/second. They also explored...Resources the Addgene Blog Learn More about SunTag Catch up on Your GFP Background Choose the Brightest Fluorescent...

  28. Addgene Depositors Get More Citations

    Type
    Blog Post
    Published
    April 20, 2017, 2:30 p.m.
    ...databases available, Web of Science. For each publication, Web of Science provides basic bibliographic ...Science, PLOS One, and PNAS. We then broke the publications from these journals into two groups: those containing...differences in citations due to the journal of publication. Table 1 provides an example calculation of the...Addgene in them. The adjustment is done within publication years. What do we find once we do this adjustment...

  29. Hot Plasmids - January 2023

    Type
    Blog Post
    Published
    Jan. 31, 2023, 2:15 p.m.
    ...antibodies may just not perform as well in one application as another, so it is always best to have options...for mEGFP-HRas (from Plasmid 18662). See the Applications section on the Anti-GFP [N86/8R] page for more...fluorescent proteins (FPs) necessary for many of these applications have lagged. Fixation, chemical staining, and...well-suited for the demands of advanced microscopy applications such as super resolution, electron, and expansion...

  30. Visualizing Genomic Loci with CRISPR-Sirius

    Type
    Blog Post
    Published
    April 18, 2019, 12:53 p.m.
    ...The catalytically dead Cas9 protein (dCas9) is well known for its ability to bind DNA targets without...has been widely adapted for a wide variety of applications: base editing, CRISPR activation and inhibition... (B) CRISPR-Sirius used to visualize relative locations of the subtelomeric region of the pericentromeric...al. “CRISPR-Sirius: RNA scaffolds for signal amplification in genome imaging.” Nature Methods 15 (2018)...

  31. R Bodies: Membrane-Rupturing Microscopic Tools

    Type
    Blog Post
    Published
    April 14, 2016, 2:30 p.m.
    ... modified to extend at different pH levels. Domesticating R bodies We have shown that all three of these...actuators that could be used in a variety of applications. For example, you could use them to lyse cells...matrices) in response to pH changes. Beyond these applications, purified R bodies could also perform as actuators...PubMed PMID: 26814170. Find Plasmids from This Publication at Addgene 4. Petroni, G., Spring, S., Schleifer...

  32. Management for Scientists: Delegating is Key

    Type
    Blog Post
    Published
    Feb. 20, 2015, 8:30 p.m.
    ...team manager must then facilitate appropriate communication between members of the team to ensure that no...of the overall project gets left undone or is duplicated. With each component of the project completed...clear outcomes in mind, you won’t be able to communicate these well to the task assignee and this is a...with most managerial responsibilities, good communication is at the heart of delegating for success.  ...

  33. Synthesized by Ginkgo Bioworks, Shared by Addgene: SARS-CoV-2 Plasmids for Many Expression Systems

    Type
    Blog Post
    Published
    May 19, 2020, 1:15 p.m.
    ...other proteins that require post-translational modification may not be easily expressed in non-mammalian...constructs contain protein coding genes, tags, truncations, and codon optimizations similar to those found...are intended for the high level expression and purification of SARS-CoV-2 proteins for downstream experiments...wild type and codon optimized, full length and truncated versions of SARS-CoV-2 S (spike protein) cloned...

  34. Developing a cold tolerant E. coli using specialized chaperones

    Type
    Blog Post
    Published
    Jan. 28, 2020, 2:35 p.m.
    ...psychrophilic enzymes for milk processing, fruit juice clarification, meat tendering, and oligosaccharide synthesis...cultivating a nuanced understanding of the societal ramifications of laboratory science, and how it may best be...which received the Silver Medal in the Undergrad category at the iGEM Competition 2019. He has an active... interest in scientific writing and science communication, and is a fledgling (though infrequent) blogger...

  35. Hot Plasmids - May 2022

    Type
    Blog Post
    Published
    May 26, 2022, 1:15 p.m.
    ...of interest and, for in vivo work, generate a dedicated transgenic line. Using zebrafish as a model organism...off-target mutations. These plasmids contain catalytically inactive dCas9 and microbial SSAPs (dCas9-SSAP...clonal multiplexing of cells in live imaging application. Each visual barcode consists of a fluorescent...transcription response element (TRE) or kinase translocation reporters (KTRs). Find visual barcode plasmids...

  36. GPCRs: How Do They Work and How Do We Study Them?

    Type
    Blog Post
    Published
    Feb. 11, 2021, 2:15 p.m.
    ...constructed plasmids that can be used in peroxidase-catalyzed proximity labeling to quantifiably measure GPCR...In this technique, the receptor fused to APEX2 catalyzes the biotinylation of proteins near the GPCR. These...Multidimensional Tracking of GPCR Signaling via Peroxidase-Catalyzed Proximity Labeling. Cell 169:338-349.e11 . https...Kadowaki S, Haga T, Takaesu H, Mitaku S (2002) Identification of G protein-coupled receptor genes from the...

  37. Clear and Accessible Writing

    Type
    Blog Post
    Published
    Feb. 15, 2024, 2:15 p.m.
    ...principles we developed to use in our website and educational content conflicted with plain language guidelines...Stupid, overwhelmed, discouraged, tired…words that indicated there were many barriers between our audience ...readers.    Figure 1: An image from AAV Purification by Iodixanol Gradient Ultracentrifugation ...Figure 1 appears on our protocol page for AAV Purification by Iodixanol Gradient Ultracentrifugation. The...

  38. Viral Vectors 101: The AAV Retrograde Serotype

    Type
    Blog Post
    Published
    April 27, 2023, 1:15 p.m.
    ...Tracers are typically delivered to a particular location and they either trace downstream from the soma...Others have noted a lack of transduction in catecholamine pathways from the spinal cord (Wang, 2018, Metcalfe...not yet understood, one thing is clear: this application opens a lot of doors in neuroscience. The retrograde...retrograde serotype also has promising therapeutic applications; it can enhance therapeutic delivery across ...

  40. 15 Years of Addgene: The Top 15 Plasmids

    Type
    Blog Post
    Published
    Jan. 8, 2019, 1:54 p.m.
    ...taken us on many adventures...From moving office locations three times, to opening our UK office in 2014,...cell types so it is useful in a wide range of applications. This plasmid was the top requested plasmid ...notice the “V2.0” at the end of this plasmid which indicates that there was a prior version of this plasmid...plasmid was called pLKO-Tet-On in the original publication but its name was subsequently changed to clarify...
Showing: 441 - 480 of 833 results