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We narrowed to 820 results for: nin

Showing: 101 - 120 of 820 results

  1. A Deep Dive into BioBuilder

    Type
    Blog Post
    Published
    Oct. 11, 2017, 1:44 p.m.
    ...club of its kind, running from start to finish during the academic year and remaining affordable for all...through October 19. The BioBuilder Learning Lab The BioBuilder Learning Lab is a fully equipped, state-of-the-art...capitalize on the excitement found through experiential learning. “Students may forget the technical details they...handful of local high school teachers receiving training modules in synthetic biology has grown into a ...a project-based curriculum, BioBuilder expands learning outcomes by emphasizing the importance of critical...you can get involved with BioBuilder Details for joining BioBuilder’s programs can be found on its website...production of fire-resistant housing insulation, and cleaning up salt runoff from winter icing.BioBuilderClub...

  2. To Each HIS Own

    Type
    Blog Post
    Published
    March 2, 2023, 2:15 p.m.
    ...the tag and how many do I need? When designing a plasmid containing a polyhistidine tag, you’ll need to...single cell has tens of thousands of proteins functioning in a variety of ways. How do scientists focus...are immobilized on a bead or resin and a sample containing the protein of interest flowed through. The protein...the metal ions.      Fig. 1: A sample containing a polyhistidine tagged protein of interest (purple... (blue, green, orange) flows through the Ni2+-containing resin. The protein of interest (purple) binds...and is immobilized along with a polyhistidine containing contaminating protein (orange). A low imidazole...relatively low frequency amino acid, proteins containing two or more adjacent histidines are present in...

  3. A Control for All Seasons

    Type
    Blog Post
    Published
    Oct. 5, 2023, 1:15 p.m.
    ...Such species-on-species staining can be partially addressed with stringent staining protocols and the use...the process could make it difficult to obtain meaningful results.  Biological replicates are distinct ...antibody specificity. B, secondary antibody-only staining will allow you to see nonspecific interactions...incubated with its antigen or a small epitope-containing peptide to block the antigen-binding site. The...      Secondary antibody specificity  In indirect staining approaches, secondary antibody specificity must...inflammation. This tends to be most problematic when staining cells or tissues that are the same species as ...secondary antibodies, and labels omitted. Any signal remaining is autofluorescence and should be considered in...

  4. Corralling and Cornering the Goldilocks Antibody

    Type
    Blog Post
    Published
    Aug. 9, 2022, 1:15 p.m.
    ...a lab we discuss the results together, explaining our reasoning to determine if the antibody is negative...cannot be completed. A 2015 review analyzing and explaining the antibody crisis states that up to 50% of ...Initiative Cell Census Network, the Wu lab will be screening over 3,000 antibodies for use in mice and human...consistent antibodies for specific markers. The Screening Criteria While choosing which antibodies to screen...uses. We therefore use both rAb and mAB in our screening. To screen the antibodies, we have developed ...to see the reproducibility and accuracy while screening. We also compare different clones of the same ...multiple people in the lab conduct “independent screening”, where they look at the same section and determine...

  5. Pooled Library Amplifications

    Type
    Blog Post
    Published
    May 30, 2024, 1:30 p.m.
    ...Protoc. 2017 with modifications Screening pCMV-Rep78/68 Scanning Saturation Mutagenesis (SSM) Pooled...amplification protocols tend not to work as well.   Defining your library First, you’ll need to collect specific...aim for somewhere between 30x and 200x coverage, meaning that you need 30 to 200 times as many colonies ... be in direct competition with other colonies containing smaller, recombined backbones that may replicate...Re-transformation of the SPLINTR Libraries (PDF, 401 KB) Screening Zhang Lab - Multiplexed Overexpression of Regulatory...Amplification and Sequencing Protocol (DOCX, 32 KB) Screening Rinehart Lab Iterative Synthetically Phosphorylated...-Cas9 knockout and transcriptional activation screening, a protocol paper by the Zhang lab, and the Broad...

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

    Type
    Blog Post
    Published
    Dec. 17, 2020, 1:30 p.m.
    ...variable amounts of experimental manipulation and screening.  A co-selection strategy for CRISPR editing in... with inefficient sgRNAs in my initial direct screening efforts, which were similar to the approach detailed...low efficiency (0.13%) and laborious handling (screening 768 F1 animals). Recovering rare editing events...conditional-lethal mutation to identify edits with minimal screening effort. Selecting for repair of a lethal mutation...to identify a single 2xFLAG knock-in by direct screening. The center images depict the power of lethal ...parental animal, are rescued progeny, which makes screening extremely rapid. This stringent selection allowed...al., 2014), inactivation of non-homologous end-joining results in a further increase in knock-in efficiency...

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

    Type
    Blog Post
    Published
    Oct. 13, 2016, 2:30 p.m.
    ... up a large and diverse group of professionals running the marketing, commercialization, collaborative...client might need help with the intricate task of designing a strategic vision for a portfolio of candidate...edge; a consultant might outline the impacts of combining targeted molecular therapies for cancer with chemotherapies...from previous consulting experiences, educational training, and conferences, and synthesizing this knowledge...externally to clients and experts. Hence, active honing of communication skills is a must to be successful...have greatly benefited from and appreciated the training I’ve received in concisely and accurately communicating...and that they can be ameliorated by thoughtful planning and engagement, leaving mental energy to enjoy...

  8. Plasmids 101: What is a plasmid?

    Type
    Blog Post
    Published
    April 2, 2020, 6:17 p.m.
    ...Allows for selection of plasmid-containing bacteria. Multiple Cloning Site (MCS) Short segment of DNA... of cloning methods (restriction enzyme, ligation independent, Gateway, Gibson, etc). The cloning method...into. Regardless, once the cloning steps are complete, the vector containing the newly inserted gene is...an origin of replication, selection marker, and cloning site. The ease of modifying plasmids and the ability...applications. Some common plasmid types include cloning plasmids, expression plasmids, gene knock-down ...Reference includes information about molecular cloning, how to choose a plasmid vector, molecular biology...

  9. Early Career Researcher Toolbox: Free Online Molecular Biology Tools

    Type
    Blog Post
    Published
    Sept. 12, 2023, 1:15 p.m.
    ...types of cloning methods, such as restriction enzyme cloning, Gibson assembly, or In-Fusion cloning.  NEB...Design primers for Goldengate cloning   Design primers for In-Fusion Cloning Design primers for Gibson Assembly... any cloning method. You can select from five different insert:backbone ratios. In-Fusion cloning molar...design, as well as primer design for different cloning applications. Primer3 and Primer3Plus: For general...sets for high complexity Golden Gate Reactions Cloning ligation reaction calculators These links can help...

  10. Plasmids 101: Antibiotic Resistance Genes

    Type
    Blog Post
    Published
    Jan. 30, 2014, 3:29 p.m.
    ...resistance as a marker for successful cloning. In these instances, the cloning vector typically has two separate...Posts Learn How to Use Blue White Screening to Simplify Your Cloning Experiments See Where You Can Find...cells on average! Without some means of quickly determining which cells successfully received the correct... from the bacterium's perspective – a plasmid-containing cell must replicate the plasmid in addition to...it allows a scientist to easily detect plasmid-containing bacteria when the cells are grown on selective...gene and acts as a marker for the mutation. When designing these types of experiments it is best practice... or completely removes (in the case of Gateway cloning) one cassette. Counterselection allows the scientist...

  11. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...transitions are edits between the purine bases (adenine, guanine, and hypoxanthine) or between the pyrimidine...gene editing. Cytosine base editors (CBEs) and adenine base editors (ABEs) chemically modify target bases...included in the CGBE. They also developed a machine learning model capable of predicting editing outcomes of...sometimes processed by error-prone non-homologous end joining (NHEJ). To mitigate this, the team introduced the...of unwanted DNA edit. NHEJ Non-Homologous End Joining An error-prone cellular process to repair DSBs.... the first type of base editor invented. ABE Adenine Base Editor Converts A → G; the second type of ... screens, target-library analysis, and machine learning. Nature Biotechnology, 39(11), 1414–1425. https...

  12. Transferable Skills Guide: Time Management

    Type
    Blog Post
    Published
    Dec. 5, 2017, 1:52 p.m.
    ...that many researchers feel that they lack formal training in a variety of transferable skills. At Addgene...undergrad working with cancer cell lines. As I started planning out my own experiments in graduate school, I had... into three conceptual chunks: prioritization, planning, and procrastination. Time management through ...one of them. That’s why, as I’ll discuss in the planning section below, it’s important to dedicate specific...splitting my cells first. Time management through planning I probably wouldn’t have fallen into my cell splitting...projects to operate this way now. Talking about “planning” is easy, but actually doing it in a productive... way can be quite difficult. In my experience, planning has 3 components: A mechanism for blocking off...

  13. Plasmids 101: Methylation and Restriction Enzymes

    Type
    Blog Post
    Published
    June 30, 2016, 2:30 p.m.
    ... methyl group to the adenine in AACNNNNNNGTGC or GCACNNNNNNGTT Impact on cloning and digests Although...naturally occur in bacteria for purposes other than cloning or confirming plasmids. It turns out that restriction...one or a few restriction modification systems containing methyltransferases that add methyl groups to ...DNA: Dam methylase adds a methyl group to the adenine of GATC stretches of DNA Dcm methylase adds a methyl...coli strain and will therefore have methylated adenines in any GATC sequences found in the plasmid. When...enzyme will cut? Whether performing a digest for cloning purposes or for diagnostics, we suggest double ...can ensure this site remains unblocked by first cloning your DNA into a dam–/dcm– strain of E. coli such...

  14. REPLACR Mutagenesis: Replacing In Vitro Recombination Methods

    Type
    Blog Post
    Published
    Feb. 10, 2016, 3:30 p.m.
    ...Read about Other Plasmid Cloning Techniques like SLIC and Golden Gate Cloning Learn How to Verify Your...same efficiency as Gibson Assembly and GeneArt cloning - but at a much lower cost. Read on to find out...an appropriate vector. Gibson Assembly, GeneArt Cloning, and SLIC can all be used to assemble multiple ...described above, you design two primers, each containing the desired mutations, to amplify both strands...strands of a plasmid template. In addition to containing the mutations, the primers also have some homology... head-to-head with Gibson assembly and GeneArt cloning, the results are favorable. With 17-bp homology... observed efficiency of mutagenesis (mutation-containing colonies/total colonies) is about 84% for each...

  15. Plasmids 101: Repressible Promoters

    Type
    Blog Post
    Published
    Dec. 20, 2022, 2:15 p.m.
    ...Positive Repressible: An activator protein is bound, turning transcription ON. When a repressor binds the activator... herpes simplex virus. tTA binds to promoters containing TetO elements (often linked in groups of seven...change that prevents binding to the promoter and turning transcription OFF. Despite their bacterial origins...systems function well in mammalian cells, and TRE-containing promoters can be used in the repressible manner...activation domain VP16. cTA binds to promoters containing putative operator sequences (CuO) (linked in ...change that prevents binding to the promoter and turning transcription OFF. The cumate switch system functions...broad QF expression-induced lethality in flies. Riabinina et al. also developed chimeric transactivators...

  16. Finding Your Perfect Job After University

    Type
    Blog Post
    Published
    Jan. 12, 2016, 3:30 p.m.
    ...system), in 2009 (at the beginning of the financial recession) I knew obtaining work in scientific research...Working in industry: Microbiology On returning from Ghana at the beginning of 2010, I explored options for ...physically carrying out experiments like PCR and running gels, but in research you also experience a lot...positive experience. I enjoyed helping people and learning to explain concepts in ways that people from another...looking for other career options after 6 months. Returning to university to study a Masters of Science I ... saved money from my role in Industry and took evening work to help cover the costs. My MSc courses were...Industry was really valuable; I had received all the training and experience relating to good manufacturing ...

  17. Transferable Skills Guide: Cross-team Communication

    Type
    Blog Post
    Published
    Nov. 21, 2019, 1:53 p.m.
    ...gets “Lexicon Training.” Since the lexicon is a “living” document, I update the training frequently. In...the confusion in our meetings. A lot of our LIMS planning involved “plates,” and our scientists and lab ...misinterpretation, that misinterpretation was definitely happening. Our solution for this problem was the creation...simplified the first weeks or months when I was learning the terminology of a new field. Annotate: When...we define new and potentially ambiguous terms. Defining words and applying annotation can be particularly... meeting is using the same words with the same meanings consistently, meetings will be shorter and more...Happier colleagues. Feeling like people aren’t listening to you or understanding you can be incredibly ...

  18. Addgene's Tips for Plasmid Quality Control

    Type
    Blog Post
    Published
    Jan. 14, 2016, 3:30 p.m.
    ...starts by determining what features you expect to differ between plasmids, and selecting or designing a primer...antibiotic resistance, restriction sites used during cloning, and most importantly, the predicted full plasmid...quality, as it will catch any errors made during the cloning, sample handling, or sequence assembly steps. All...on the number of features we need to verify. Determining which features to verify will depend on the particular...its predecessor. Important features may include cloning junctions (where most sequence assembly errors ...mutations, in-frame protein fusions, and multiple cloning sites. In the simplest case we have a standard ...you design your custom primers. Remember, when designing a sequencing primer, you need some space between...

  19. Plasmids 101: The Wide World of Natural Plasmids

    Type
    Blog Post
    Published
    Oct. 8, 2024, 1:15 p.m.
    ...just for lab specimens — there is evidence that lightning can also promote gene transfer in soil bacteria...resistance-mediated selection is indispensable for cloning work, antibiotics and plasmid-encoded resistance... in the lab but also causes outbreaks of food poisoning, the difference is virulence plasmids! This category...natural inducible expression systems that allow tuning of metabolic pathways. Fertility (F) plasmids: ...2024), and others have proposed developing new cloning techniques based on these vectors (Shareck et al...have more than one function: for example, Gateway cloning relies on genes found on an E. coli fertility plasmid...this F plasmid is critical for successful Gateway cloning. In addition, scientists have engineered entirely...

  20. Educational Planarian Tools for Teaching Developmental Biology Techniques

    Type
    Blog Post
    Published
    May 24, 2018, 1:20 p.m.
    ...Arabidopsis in Education Learning Synthetic Biology with BioBuilder 3D Models for learning about CRISPR Resources...students how to perform these experiments in the beginning. In most classrooms, the laboratory experience...experiments. Notably, this plasmid harbors a multi-cloning site flanked by T7 promoters to allow for bidirectional...riboprobes) with modified nucleotides (for example, Digoxigenin-labelled Uracil) that will bind to complementary...complementary DNA (cDNA), and then use PCR and molecular cloning to insert the cDNA into the desired plasmid backbone...siRNA and are directed by complementarity to the remaining single stranded siRNA to bind natively expressed...-amputation planarians after knockdown of beta-catenin. Other gene targets do not require amputation to...
Showing: 101 - 120 of 820 results