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Showing: 161 - 180 of 785 results
  1. Antibody Validation for Flow Cytometry

    Type
    Blog Post
    Published
    Sept. 10, 2024, 1:15 p.m.
    ...see: Uhlen et al., 2016). In this post, we will describe the approaches that can be used to determine selectivity...intended application — here, flow cytometry — is the desired target, using one or more of the approaches outlined...interpreting your data therefore necessitates careful design of RNAi sequences, confirmation of RNA knockdown...the target at different levels, it is possible to design experiments where the performance of the antibody...We find that cell tracker dyes are helpful in designing such panels, so that pre-stained cell lines can...pass type-1 membrane protein), which has been designated CD365 in the most recent HLDA workshop (HLDA10...recognized by either antibody was not shared. Tables describe that the antibodies both recognized the target...
  2. Targeting HIV-1 with CRISPR: Shock and Kill or Cut it Out?

    Type
    Blog Post
    Published
    May 10, 2016, 2:30 p.m.
    ...the virus doesn’t completely disappear; it just hides in latently infected cells. To truly cure HIV-1,... dCas9-SAM to activate HIV-1 transcription and destroy infected cells, the other using wild-type Cas9 ...Why can’t the body mount an immune response to destroy these reservoirs? Essentially, the immune system...enhance transcriptional activation. Zhang et al. designed multiple gRNAs to target the 5’ long terminal ...prevent reinfection of those cells. Kaminski et al. designed gRNAs to target the HIV-1 5’ and 3’ LTRs and expressed...could be used to combat this problem, just as ART includes multiple drugs to lower the odds of developing...strategy may be a better option than direct cleavage. Despite the potential difficulties in translating these...
  3. Treating Muscular Dystrophy with CRISPR Gene Editing

    Type
    Blog Post
    Published
    Jan. 26, 2016, 3:30 p.m.
    ...dystrophin transcript. Unfortunately, the oligonucleotides only modestly improve muscle function, and they must...wasting leading to death at around 30 years of age. Despite the amount of research conducted on DMD, there ... over time, stem cell editing would be highly desirable. Should stem cell editing occur, the CRISPR components... for Duchenne muscular dystrophy. gRNAs can be designed to flank a single or multiple exons that, when...Short-term CRISPR expression would be especially desirable, as it would reduce the potential of off-target...require robust stem cell editing to maintain the desired phenotype. Precision genome editing faces the challenges...Covello G, Denti MA. Exon-skipping antisense oligonucleotides to correct missplicing in neurogenetic diseases...
  4. Plasmids 101: What is a plasmid?

    Type
    Blog Post
    Published
    April 2, 2020, 6:17 p.m.
    ...plasmid with its elements described below.   Vector Element Description Origin of Replication ...molecular biology lab will undoubtedly be asked to design, modify, or construct a plasmid. A plasmid is a...why each is important. Our “Plasmids 101” series designed to educate all levels of scientists and plasmid...basics and spend more time developing cleverly designed experiments and innovative solutions necessary...utilized in the lab are usually artificial and designed to introduce foreign DNA into another cell. Minimally...the lab. Addgene’s Molecular Biology Reference includes information about molecular cloning, how to choose...
  5. Early Career Researcher Toolbox: Free Tools for Making Scientific Graphics

    Type
    Blog Post
    Published
    June 11, 2019, 1:16 p.m.
    ...Image Search results includes images that can’t be reused without attribution, despite filtering for images...Initially I didn’t have access to professional-grade design software, like Adobe Illustrator, and I didn’t ...Googling and some trial and error, I found some free design software that let me create graphics that better...of Adobe Illustrator. There’s both a web and a desktop version of this software. Vectr has layers, which... this post. It’s open source and available for desktop use for Windows, Mac OS X, and Linux. Inkscape ...The web-based collection of over 20,000 icons is designed by professional medical illustrators with input...
  6. CRISPR/Cas9 FAQs Answered!

    Type
    Blog Post
    Published
    March 13, 2014, 4:08 p.m.
    ... CRISPR plasmid tools and numerous experimental design decisions to make, it makes sense that scientists...editing using the Zhang lab's CRISPR/Cas plasmids. Designing your CRISPR genome editing experiment Q1: Should...comparable efficiency to the optimized chimeric design but with better accuracy (in other words, lower...nickase system is based on the Cas9 D10A nickase described in Figure 4 of the Cong, et. al, 2013 Science ...from the Zhang group. Learn more here. Q2: When designing oligos for cloning my target sequence into a backbone...reference.  More FAQs, CRISPR protocols, and gRNA design tools Need more questions answered about CRISPRs...CRISPR plasmids at Addgene Find protocols and gRNA design tools: List of CRISPR protocols developed by a...
  7. History of CRISPR Cas - A tale of survival and evolution

    Type
    Blog Post
    Published
    Nov. 25, 2013, 10:12 p.m.
    ...multiplexibility in various species and describe an assortment of applications. Despite the ubiquity of CRISPR/Cas ... store a record of invading phages but to also destroy the phage upon re-exposure (2, 3). More specifically...complex binds to the foreign DNA, a cut is made to destroy the invader. Wikipedia, accessed 25 November...engineering. The diversity of the CRISPR/Cas systems provides powerful lines of defense against invading phages...CRISPR/Cas inspired genome editing was initially described by Cong et al. and Mali et al. in January 2013...Nine months later, more than 1500 publications describe work to improve the tool’s specificity, orthogonality...
  8. Plasmid Cloning by PCR

    Type
    Blog Post
    Published
    March 29, 2016, 2:30 p.m.
    ...for Gibson assembly. The steps following primer design and the PCR process itself are very similar to ...the downstream steps. For this example, we will describe how to copy a cDNA from one vector into a new ...YGOI) for ligation into a recipient plasmid. Designing primers for PCR based cloning     The basic...: Do not cut within your insert Are in the desired location in your recipient plasmid (usually in ...examine the DNA sequence that we want to amplify and design primers that will bind to and replicate it. The...ends of the ORF and how these are used for primer design: Because we are cloning an ORF, we want to clone...TAAGCAGAATTCATGTGGCATATCTCGAAGTAC-3'. For the Reverse Primer, the design is similar, but we need to use the reverse complement...
  9. 10 Great Guest Posts We're Thankful For

    Type
    Blog Post
    Published
    Nov. 18, 2016, 3 p.m.
    ... researcher in Jacob Corn’s lab, describes how you can better design your donor DNA template to achieve...Detect Zika Virus The RNA-based toehold switches described in this post are engineered to bind RNA sequences...Boston University School of Medicine, this post describes a tool you can use to study basic virus biology...researcher in the Silver Lab at Harvard University, describes R-bodies, “force generating protein machines that... Connie Cepko’s Lab at Harvard Medical School describes how AAVs function and indicates important things...from the Jackson Laboratory for Genomic Medicine described Casilio, a system that uses modular RNA binding...
  10. Summer SciComm Series: Master of SciComm

    Type
    Blog Post
    Published
    July 21, 2022, 1:15 p.m.
    ..., creative writing, designing and curating exhibitions, animation, graphic design, and more. I recall ... career in neuroscience—whatever that entails. Despite being engrossed by the theory and findings of brain... my curiosity did not ultimately translate to a desire to do the research itself. Several years of exclusively...more creative faculties into motion, such that a desire to once again write for fun eventually saw an English...experimental aspect of my thesis: a survey instrument designed to measure how individuals respond to issues of...SciComm Series: Cognitive LoadSummer SciComm Series: Modes of CommunicationIntro to Our Summer SciComm Series...
  11. Hot Plasmids - June 2020 - Barcoded CRISPR Library, Sparse Cell Labeling, Calcineurin Reporter, and DNA Staining Dye Alternative

    Type
    Blog Post
    Published
    June 2, 2020, 1:15 p.m.
    ...assign four different barcodes to each of the gRNAs and to embed these barcodes within the gRNA sequences...lab designed a calcineurin transcriptional reporter consisting of a quickly-degraded destabilized GFP ...method that makes use of guide RNAs with internal barcodes (iBARs) in their loop region. After infecting ...bioRxiv 2019. https://doi.org/10.1101/788679 A destabilized GFP reporter for calcineurin activity in yeast...intracellular Ca2+ (bottom panels) equipped with destabilized GFP calcineurin reporter (blue) and stained ...
  12. FlipGFP, a novel fluorescence protease reporter to study apoptosis

    Type
    Blog Post
    Published
    May 21, 2019, 12:10 p.m.
    ...fluoresce: FlipCherry. FlipCherry provides a proof of concept that the designed used in FlipGFP can be applied...range and high brightness. The Shu Lab from UCSF designed an improved apoptosis reporter, ZipGFP, which ...prevent binding, the β strands in FlipGFP were redesigned so that they are parallel to each other and thus...fluorogenic reporter toolkit, the Shu Lab also designed a red fluorogenic protease reporter based on superfolder...PMCID: PMC2117903. To, Tsz-Leung, et al. "Rational design of a GFP-based fluorogenic caspase reporter for...Central PMCID: PMC5026494. Zhang, Qiang, et al. "Designing a green fluorogenic protease reporter by flipping...
  13. Fluorescent Protein Travel Awards - FLiPs and Fluorescent Protein Biosensors

    Type
    Blog Post
    Published
    July 27, 2017, 1:11 p.m.
    ... C-terminal dronpa fusions. With these various designs, Xin has been able to develop photoswitchable Intersectin... other researchers will be able to use similar designs to create a wide variety of enzymes and proteins...post. Fatima Enam: Biosensors for human milk oligosaccharides Fatima Enam is currently a graduate student...fluorescent protein-based biosensors for Human Milk Oligosaccharides (HMOs). HMOs are thought to play an important...nonspecific in the second. Fatima therefore set out to design and produce two biosensors that could quickly and... and reliably detect HMOs. Fatima’s first design is a whole cell biosensor with two components - an enzyme...recently presented her work at her home town in Bangladesh where it was well received. In addition to her...
  14. Enabling Precision Functional Genomics with the Target Accelerator Plasmid Collection

    Type
    Blog Post
    Published
    May 11, 2017, 2:30 p.m.
    ...connecting each genotype with vulnerabilities) to design a therapeutic strategy that works. But, those darn...information on each cancer clinical sequencing report includes rare variants that haven’t been characterized?...based on maps of protein structure. Sometimes this provides a great deal of clarity. But, often these methods...signatures or cancer phenotypes. These assays were designed to complement the one assay per gene approach ...27478040. The lung cancer mutant collection is described in this paper. Systematic Functional Interrogation...the genetic pathway reference collections are described in this paper Systematic morphological profiling...  The genetic pathway reference collection is described in this publication We also wrote an extensive...
  15. How Addgene Creates Content

    Type
    Blog Post
    Published
    Nov. 17, 2022, 2:15 p.m.
    ...up walls of text. Since our guides are heavily used, our graphic designer made most of the Antibody Guide... quickly." Final design (right). Immediate and immense regret of the graphic designer not shown.   ...blog, website, social media, videos, newsletters, guides, and e-books – comes into play. Our goal is to ...communication between our content team and our graphic designer to make sure things are clear, accurate, and in...Reference image (left) provided to our graphic designer upon request that the science communicator "just...
  16. Hot Plasmids - February 2022

    Type
    Blog Post
    Published
    Feb. 22, 2022, 2:15 p.m.
    ... encoding multiple guides. While two guides require two arrays for Cas9, two guides can be streamlined...applications. This set of new anti-FLAG frankebodies includes mEGFP, mRuby2, iRFP713, SNAP-tag, and HaloTag ...target multiple genes within a single cassette provides increased simplicity for combinatorial genetic...cost-effective alternative to commercial ladders which also provides a useful yet low-pressure teaching opportunity...less than half the size of either Cas9 or Cas12a. Despite its small size, CasMINI is comparable in efficacy...
  17. Pairing CombiGEM and CRISPR for Combinatorial Genetic Screening

    Type
    Blog Post
    Published
    April 12, 2016, 2:30 p.m.
    ... Blog Learn Best Practices for Designing Your gRNA Read How Barcodes Can Be Used in Lineage Tracing Read...genetic perturbations. The ease with which one can design and synthesize CRISPR guide RNAs (gRNAs) for genome...their functions. The continual advancements in gRNA design necessary to achieve maximal on-target and minimal...regulation in biological systems. The CombiGEM platform provides a means to create barcoded gRNA libraries that...quantitatively analyzed by sequencing its set of barcodes. CombiGEM is highly flexible and can accommodate...PMC4151723. 2. Doench, John G., et al. "Optimized sgRNA design to maximize activity and minimize off-target effects...
  18. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    Published
    Jan. 14, 2016, 3:30 p.m.
    ...sometimes have to design new primers to sequence the important features. You can use primer design software such...such as Primer3 to help you design your custom primers. Remember, when designing a sequencing primer, you... to differ between plasmids, and selecting or designing a primer specifically to target this region, as...instructions on other factors to consider when designing your primers can be found here. Finally, you will... to Verify Your Plasmid Learn How Addgene Uses Barcodes to Track Samples Resources on the Addgene Website...
  19. CRISPR Meets Synthetic Biology: A Conversation with MIT’s Christopher Voigt

    Type
    Blog Post
    Published
    April 22, 2015, 2:06 p.m.
    ...engineering, with the ultimate objective of genome design.” It’s genetic engineering on a genomic scale, ...Systems Biology in November, Voigt and Alex Nielsen describe what’s possible when multi-input CRISPR/Cas genetic...with many guide RNAs connected because the signal degrades at each layer. If we could fix these things, then...many deposits to Addgene over the years. Can you describe the toolbox you are putting together?  Voigt: ...projects. Not from the ground up, but so that genetic designs of that scale could be created. Someone could take...doing is developing software to allow people to design systems of this scale. That will be coming out ...next 100 years, we are really going to be able to design new materials and chemicals as sophisticated as...
  20. 5 Steps to Writing Grant Proposals for Grad Students

    Type
    Blog Post
    Published
    Feb. 11, 2014, 12:13 p.m.
    ...application. It typically includes overview information, key dates, funding description, research plan, award... setbacks, and potential alternative routes, Provides opportunities to convince others why a project...aspects are understood. While reading the funding description, pay attention to the keywords used and think...grant applications restrict the space available to describe the proposed work. Thus, every single sentence...literature and offer educated insight into what the desirable features of future technologies should offer in...project are clearly stated and align with the description of the RFA and funding institution. Emphasizing...
Showing: 161 - 180 of 785 results