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TypeBlog PostPublishedNov. 9, 2017, 2 p.m....expertise with that of the company. To increase your chances at successfully applying for a position, you should... in a technical support role. What general characteristics do jobs in technical support have? There are... less time consuming and/or less technically challenging. Alongside there is a second-line team that takes... ways to communicate with customers. Online live chat is a convenient alternative for asking a quick question...
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CRISPR-based Genome Editing Systems For Editing in E. coli
TypeBlog PostPublishedApril 13, 2021, 1:15 p.m....following changes. In pCas9, we 1) replaced the promoter of gRNA-pMB1 with PrhaB, 2) changed the replicon...same year. Her research is focused on the escape mechanism of genome editing in microorganisms which could...cells to understand the genetic and biochemical mechanisms behind their distinct phenotypes and to design... -
Hot Plasmids - November 2023
TypeBlog PostPublishedNov. 14, 2023, 3:35 a.m....Design). This modular approach combines an interchangeable set of fusogenic and targeting components to...where the fusion and targeting components are interchangeable. Image from Strebinger et al., 2023, reused...local proteome, but some applications have been challenging or inaccessible. The Ting lab recently made two...They demonstrated LOV-Turbo in neurons, in pulse-chase experiments, and more. Find LOV-Turbo plasmids here... -
Viral Vectors 101: Preparing Pooled Libraries
TypeBlog PostPublishedJuly 13, 2023, 1:15 p.m....the chances of a cell being infected by only one viral particle, but it also increases the chances that...presentation deceive you; pooled libraries can be quite challenging to use! In this post, I’ll walk you through how...virus. Let’s start there! Figure 1: Flowchart showing the process for using pooled lentiviral... -
QC Sequencing Technologies at Addgene
TypeBlog PostPublishedJuly 15, 2025, 1:15 p.m.... electrical current recorded by the instrument changes. Base-calling software can then identify the nucleotide...nucleotide that passed through based on these characteristic drops. Figure 3: Overview of Nanopore... up the pace Our QC team constantly faces the challenge of keeping up with the large amount of QC analysis...., & Coulson, A. R. (1977). DNA sequencing with chain-terminating inhibitors. Proceedings of the National... -
Hot Plasmids Spring 2024
TypeBlog PostPublishedMay 23, 2024, 1:15 p.m....protected by Cas9. This is similar to the proposed mechanism for engineered pegRNAs (epegRNAs), which add a...of mouse monoclonal antibodies generated and characterized by the Geiss Lab in their effort to fill a void...cells. Plus, Voltron2’s fluorescence is tunable by changing the dye that becomes conjugated with its HaloTag...gene expression regulation, enhancing both the mechanisms of delivery and the potential for therapeutic... -
Plasmids 101: Broad Host Range Plasmids
TypeBlog PostPublishedApril 11, 2024, 1:15 p.m....Understanding the characteristics of natural plasmids and how they function in nature can inform us on...often have a restriction barrier as a defense mechanism, and they can degrade foreign bacteria through...expressed. For example, scientists can incorporate interchangeable antibiotic resistance cassettes (Prior et al...Schmidhauser, T. J., Ditta, G., & Helinski, D. R. (1988). Chapter 15—Broad-Host-Range Plasmid Cloning Vectors for... -
5 Reasons to Use Reddit for Science Communication
TypeBlog PostPublishedOct. 20, 2016, 2:30 p.m....incentivize good mentorship: AMA mechanics: Be prepared! The mechanics of doing the AMA were interesting...Getting on a good science career path can be challenging these days, but for many of us, scientist is ...Science through Video with the Addgene Youtube Channel Check Out Vidoes of Gender & Science from LabLinks... -
Controlling for Off-target Effects with a New Genome-wide CRISPR Screen Design
TypeBlog PostPublishedSept. 13, 2018, 1:55 p.m....effects. The flaws of RNAi screens are well characterized and strategies exist to control for these faults...also reproduced several previously observed characteristics that influence gRNA off-target activity: 1)...23394947. Pubmed Central PMCID: 4299491. 5. Bassik, Michael C., et al. "A systematic mammalian genetic interaction...available from Addgene Other Resources Watch Dr. Michael Bassik’s lecture on “Multiplexing with CRISPR Screens... -
Replacing Paper: Tips for Choosing an Electronic lab Notebook
TypeBlog PostPublishedJuly 10, 2018, 1:08 p.m....How are you currently exchanging information with your team? If you need to exchange information regarding...which they are sure that there will be no sharp changes in costs once they establish the system within ...consolidated to one place, easily retrievable, searchable and traceable. However, switching from paper ... -
Viral Vectors 101: Integrase-Deficient Lentiviral Vectors
TypeBlog PostPublishedMay 13, 2025, 1:15 p.m....for researchers looking to generate long-lasting changes in cells. However, for some applications, integration...numerous variants have been developed with different mechanisms to inactivate the integrase. The IDLV life cycle...construct has the D64V mutation, a single amino acid change (from aspartic acid to valine at position 64) which...Kempski, H., Brugman, M. H., Pike-Overzet, K., Chatters, S. J., de Ridder, D., Gilmour, K. C., Adams, ... -
CRISPR 101: Engineering the Plant Genome Using CRISPR/Cas9
TypeBlog PostPublishedOct. 11, 2016, 2:30 p.m.... of reasons to consider using genome editing to change the genetic code of plants, including the development... system in most organisms, some plant-specific changes to CRISPR components are necessary to enable genome...try your hand at CRISPR. References Belhaj K, Chaparro-Garcia A, Kamoun S, Nekrasov V (2013) Plant genome.../mmbr.67.1.16-37.2003 Khatodia S, Bhatotia K, Passricha N, Khurana SMP, Tuteja N (2016) The CRISPR/Cas... -
How to Negotiate a Successful Lab Start Up Budget
TypeBlog PostPublishedSept. 1, 2015, 2:30 p.m.... do you need [for your lab start up]?” A hiring chair or dean will often ask a faculty candidate. Sweaty...focusing on long term investments. For example, purchasing “used” equipment can save you money in the short...their tangible resources. For example, if a dean/chair asks “how much do you need to start your lab”. You..., working with this question is second nature. Channel your inner curiosity and use your research training... -
Plasmids 101: Dimers and Multimers
TypeBlog PostPublishedJan. 10, 2023, 2:15 p.m....giving greater concentration of cut DNA without changing the size. As a result, a restriction digest of...reducing multimerization and define recA-independent mechanisms. Avoid overgrowing the bacterial culture Another...PMCID: PMC3060453. Bazaral M, Helinski DR. Characterization of multiple circular DNA forms of colicinogenic...Adv. 2009 Jul-Aug;27(4):353-70. doi: 10.1016/j.biotechadv.2009.02.003. Epub 2009 Feb 20. PMID: 19233255... -
PiggyBac-ing Through the Genome Editing Field
TypeBlog PostPublishedMay 31, 2016, 3:30 p.m.... loci of integration [8]. Figure 1: Mechanism of the piggyBac™ transposase/transposon gene ...CRISPR/Cas9, TALENs, and ZFNs). However, several challenges still remain, such as making gene edits completely...nuclease technology with the piggyBac™ system, these challenges can be considerably reduced. The piggyBac™ transposon...researchers to avoid making unnecessary base pair changes as would be the case with ssODNs. One minor drawback... -
Live and Let Dye: Self-Labeling Protein Tags
TypeBlog PostPublishedApril 16, 2024, 1:15 p.m.... called SNAPf. eDHFR: The Virginia Cornish and Michael Sheetz labs demonstrated in 2005 that proteins ...and see the results right away. Or perform pulse-chase experiments by sequentially adding different ligands...All this flexibility comes at a price, though. Purchasing lots and lots of organic dyes or specialized ...Johnsson, K. (2021). Kinetic and Structural Characterization of the Self-Labeling Protein Tags HaloTag7... -
Sequencing Options for CRISPR Genotyping
TypeBlog PostPublishedOct. 4, 2016, 2:30 p.m.... genome editing system you use, there remains a chance that the observed phenotype was caused by an off-target...25566793. PubMed Central PMCID: PMC4349094. 3. Bell, Charles C., et al. "A high-throughput screening strategy...: 237-243. PubMed PMID: 25664545. 10. Gabriel, Richard, et al. "An unbiased genome-wide analysis of zinc-finger...Therapy (2015). PubMed PMID: 26502778. 13. Frock, Richard L., et al. "Genome-wide detection of DNA double-stranded... -
Custom CRISPR Screens & the Green Listed Software
TypeBlog PostPublishedJuly 11, 2017, 2:30 p.m....in a screen, to ensure that each gRNA has a good chance to contribute to the screen. In the end, this results...that code for surface proteins. One of the first challenges with a custom screen approach is to identify ...Wu (4), Yusa (5), Wang/Lander/Sabatini (6), and Chari/Mali/Church (7). These reference libraries contain... 28162770. PubMed Central PMCID: PMC5445660. 7. Chari, Raj, et al. "Unraveling CRISPR-Cas9 genome engineering... -
The Codon Guide to Synthetic Biology
TypeBlog PostPublishedSept. 14, 2023, 1:15 p.m.... research papers, blogs, free courses, YouTube channels, books, podcasts, and communities to help people...Niko McCarty; adapted from Bruce Wetzel and Harry Schaefer, NCI, NIH | License I’m updating it regularly...understand the contours of each topic. The video channels are also underrated and I recommend checking them... -
Expanded Access to Rabies Plasmids
TypeBlog PostPublishedFeb. 1, 2024, 2:15 p.m....description of the applicable research project when purchasing export-controlled materials. Addgene will then...our normal process. Due to recent regulation changes, an export control license for rabies materials...processing fee will be removed before your account is charged. Timelines We have offered VSV and SARS-COV-1...