...our Hot Plasmids articles.  Here's what you'll find in this post: Anti-V5 and other new epitope tag...Anderson et al., 2024 under CC BY license.    Find Anti-V5 [IPI-SV5-Pk1] Antibody here!   Anderson...studies of protein ubiquitination and degradation.   Find the CRBNmidi plasmid here!   Kroupova, A. et al...and prolonged imaging with minimal background.   Find these C. elegans mScarlet plasmids here!   Cao ...resistance interfering with selection. Using an inducible Cas9 expression and removing the sgRNA plasmid...site, which results in either bacterial death or indels after DNA repair. B) M. abscessus is first transformed...resistance selection marker HygR. The CRISPR system is induced to cause disruption of the target gene. Lastly,...

...meeting people with different mindsets and approaches can truly broaden your mind. When I first began collaborating...practical tools like alumni networks. I find it useful to remind myself to check in regularly with collaborators...people at Addgene) had to take the initiative to find a suitable partner, connect the relevant teams, ...types of events can be very tough. First I needed to find the right contacts at the companies and then convince...the perspective of my potential collaborators in mind. Being at a university allows you to approach people...sponsors for a training weekend for a sports club, find speakers for a meetup or recruit volunteers for ...: maintaining these relationships. Personally, I find this to be the most challenging and time-intensive...

...contains a 4-nucleotide Rep binding element (RBE) that serves as a binding site for Rep78 and Rep68 to...rep (replication) and cap (capsid) proteins, which bind to the ITRs and initiate replication. ITRs are cis-acting... 1). Everything else outside the ITRs gets left behind.    Figure 1: Recombinant AAV vector with ITRs...the gene of interest. A single ITR consists of palindromic arms (A-A’, B-B’, and C-C’) that give the feature...-shape. The arrangement of the B-B’ and C-C’ palindromic sequences determines the orientation of the ITR...and flop orientation. The ITR contains three palindromic sequences (A-A’, B-B’, and C-C’ regions) and ...and forms a T-shaped structure. The Rep binding element (RBE) and terminal resolution site (trs) are noted...

...academia or industry. At BosLab, we identify ourselves as part of a network of independent Do-it-Yourself...building and you will find a bike kitchen on the first floor and upstairs you will find our fully-equipped...addition to maintaining a laboratory to support both individual and community science projects, we offer classes...equipment. It was humble in comparison to the labs you’d find in Kendall square, but we saw the potential in the...club events and soon realized that it was easy to find people who were interested. For example, our journal... our members start out with personal projects in mind. Thus, to encourage more involvement and provide...creations that may not be pursued in an academic or industry lab. Mrina Nikrad, Ph.D., is an expert in microbial...

...variable fragment (scFv), grafting the binding region of a FLAG-binding scFv onto a well-folded scFv scaffold...SDS-Page gels. A: individually expressed proteins run in separate lanes. B: individually expressed and coexpressed...deposits and we hope they'll make it easier for you to find and use the plasmids you need. If you'd ever like...deposit please sign up here.  Here's what you'll find in this post: Anti-FLAG Frankenbodies for modular...scFv scaffold. (b) Schematic of anti-FLAG-FB-GFP binding to FLAG-tag H2B for nuclear localization. (c) Applications...selection rules, and reducing recombination by finding acceptable variations in DR sequences. Figure...60, 80 and 100 kD proteins in E. coli, either individually (~20,000 lanes/50 mLs) or through two polycistronic...

...comprise a DNA binding domain and an endonuclease domain. What’s distinctive is that the DNA-binding domain is...could potentially sequence a large number of individuals and find several mutations in the same gene or in... is modifiable and can be programmed to bind to essentially any DNA sequence desired. This technology ...prefabricated pieces that allow you to build a DNA-binding domain to recognize any desired 15 base pair sequence...electroporation. All you do to create a protein that binds those 15 base pairs is take four plasmids out of...about the history. How had investigators done this kind of work before? Musunuru: In the "olden days," not...expertise to create zinc finger nucleases that will bind desired sequences. TALENs are much more reliable...

... our CRISPR Protocols Find gRNA Design Tools Read other CRISPR blog posts Find CRISPR Plasmids at Addgene...screening success? Before you start analyzing individual clones, it’s wise to quickly assess whether a...haystack before going on to generate and screen individual clones. If a clonal line isn’t your end goal,...popular screening method for knockouts is Tracking of Indels by Decomposition (TIDE) (Brinkman et al., NAR)....and deletions identified within a given genomic window, along with the estimated editing frequency of ... can determine if it is worthwhile to isolate individual clones from that population. You can additionally... 25% are +/+ for your gene of interest. Thus, to find a null clone, you should screen, at the very least...

...your timeline Start with your thesis in mind. Imagine the kind of data your dream discovery will need,...books.  To find personnel salary ranges, go to online job information sites (like, indeed.com, or salary.com...palms. Heart racing. Cotton mouth.The candidate may find it difficult to answer and these are all symptoms...how long it will take to publish based on these findings. Most often we suggest estimating the time it ...experiments, start defining keywords you’ll want to find in candidates’ resumes or CVs; “vivarium”, “weaning...salary.com). Search industry and academic job titles in the regions where the host institute is located. ... your work requires specialized equipment, try finding institutes that offer shared equipment that you...

...you should be asking. What kind of control? On, off, tunable, and/or inducible? How long do you need control...expression for good, the Cre-Lox system offers inducible yet permanent gene excision. Essentially, LoxP...strand break. Transient introduction of CRISPRi or inducible expression (more on this below) will both achieve...tissue-specific targeting. Looking to permanently induce expression? Check out our Retro expression vector...and repressor mechanisms Want to transiently induce expression? Check out Addgene's Lentiviral dCas9...Addition of tetracycline or one of its analogs will induce these transcriptional changes, and expression is...relevant proteins with a degron tag can provide inducible protein degradation. These systems work by tagging...

...plasmids, with many available to scientists in industry. Since March 2020, we have received over 13,000...SARS-CoV-2 virus depends on its spike protein to bind ACE2, the host cellular receptor. To more easily... of antibodies from 19 COVID-19 convalescent individuals (Tong et al., 2021). Another version of the spike...determine how effective sera from vaccinated individuals are at neutralizing the different SARS-CoV-2 ...selection. For more information on these plasmids and a behind-the-scenes glimpse of their work, head over to ...glad to join these efforts and help academic and industry scientists through plasmid sharing and more. As...Ludes-Meyers J, Nguyen AW, Park J, Wang N, Amengor D, Lavinder JJ, Ippolito GC, Maynard JA, Finkelstein IJ, McLellan...

...contain a variety of clones and thus the potential to bind many different sites on the target protein they ...fraction of the antibody molecules will recognize and bind to your primary antibody. Manning et al. tested ...present in a broadly reactive secondary antibody will bind to a monoclonal primary antibody (A). To boost signal...increase the chance of primary/secondary antibody binding and therefore the signal strength (Fig. 1). Monoclonal...with higher affinities, like those from a rabbit, bind a greater amount of antigen in a shorter period ...better choice for assays that require high affinity binding, such as immunoprecipitations. Your sample species...anti-mouse secondary antibodies used for detection bind to non-target immunoglobulins naturally present ...

...common drug used to induce the expression of Cre is tamoxifen. In tamoxifen-inducible Cre (Cre-ER) systems..., knockout mice, and mice with conditional or inducible gene expression. Transgenic and knockin mice As...into a female animal for gestation. Nucleases that induce double-stranded DNA breaks, such as ZFN and TALEN...targeted to specific regions of the genome, and induce non-homologous repair at the site of DNA damage... identify the ones with the desired genotype. Inducible and conditional systems Conditional knockouts ...DNA from one region of the genome to another.  Inducible gene expression Another type of genetically engineered...systems, Cre is fused to the ligand binding domain of estrogen receptor alpha (Esr1). Mice are fed or injected...

...Let’s start by examining individual parts and transcriptional units. Individual parts are defined DNA sequences...multi-part DNA assembly. Simply put, it assembles individual DNA components into larger units or circuits ...particular cloning technique. Though rarer, you can find MoClo that relies on Gibson and other non-Golden...be broken down into three hierarchical levels: individual DNA parts, transcriptional units, and multigene... sequences with specific functions. Most individual parts have characterized activities with predictable...While a gene is the most obvious example of an individual part, this category also includes promoters, ..., UTRs, terminators, etc. Once selected, individual units can be combined into… Transcription units (TUs...

...of making targeted genetic edits. Cas9 is a DNA binding protein that can be directed to virtually any genetic..., each of which cleaves one strand of DNA upon binding the protospacer. The resulting double strand break...respectively. When complexed with a truncated gRNA, Cas9 binds the target site, but does not cut either strand ...fusion proteins retain the ability to recognize and bind to DNA; when complexed with a gRNA that directs ...of attempting to simultaneously and selectively induce both cutting and regulation of expression at different...of complementarity to a target site, Cas9’s DNA binding capability remains intact while its nucleolytic...transcriptional start site (TSS) of a gene of interest, it induces potent gene expression with no genetic alterations...

...either the N or C terminal of a protein and can inducibly facilitate the degradation of the tagged protein...mechanisms of control. Protein degradation can be induced by the addition of a small molecule, and protein...degron tags can do more than just degrade! Read on to find out more. Common degron tags When it comes to degrons...novel degrader, dTAG13, is a small molecule which induces dimerization of the FKPB12F36V fusion protein with... also be handy!   Fig 1. dTag molecules induce dimerization of an FKBP12F36V fused target protein-of-interest... can be added to media, buffer, etc., which will bind and light up a tagged protein for imaging. Given...ligases to specific proteins by simultaneously binding both their target protein and an E3 ligase through...

...Learn about Addgene's viral service Find viral protocols and videos Find biosensor AAVs for your research...at a certain frequency, and this frequency can indicate behavioral state, for example, if someone is awake...) are well understood, the direct effect of DA binding to a target neuron is more mysterious. Thus, scientists... ms on and 100 ms off), enabling detection of individual peaks of DA release.  Using dLight1 sensors in...during learning and reward consumption in live mice Find dLight sensor here! The GRABDA dopamine sensor Yulong... such that the GFP fluoresces upon DA-receptor binding (Sun et al., 2018). These sensors also exhibit ... mice over the course of Pavlovian conditioning Find the GRABDA sensor here! Overall these sensors are...

...plasmid, scientists would spend hours to days trying find their correct clones. Additionally, the presence...vice versa). Looking around the lab, you'll likely find many of the antibiotics listed in the table below...Working Concentration** Kanamycin aminoglycoside Binds 30S ribosomal subunit; causes mis-translation Bactericidal...Bactericidal 50-100 ug/mL Spectinomycin aminoglycoside Binds 30S ribosomal subunit; interrupts protein synthesis...Bactericidal 100 ug/mL Bleomycin glycopeptide Induces DNA breaks Bactericidal 5-100 ug/mL Erythromycin...Bactericidal 10-100 ug/mL Tetracycline tetracyclin Binds 30S ribosomal subunit; inhibits protein synthesis... Bacteriostatic 10 ug/mL Chloramphenicol   Binds 50S ribosomal subunit; inhibits peptidyl translocation...

...on PHP.B binding in vitro. They found that when LY6A contained C57BL/6J SNPs, PHP.B could bind it, but ...an ELISA to measure binding of PHP.B to a soluble version of LY6A. They saw binding between PHP.B and the...Wilson lab at the University of Pennsylvania independently searched for this unique sequence of DNA and...susceptibility. The Deverman and Wilson Labs independently identified LY6A as a receptor for PHP.B by looking...search on SNPs and small insertions and deletions (indels) most likely to have large phenotypic effects such...but when LY6A contained BALB/cJ SNPs, binding was reduced. The Deverman group then looked to see if PHP....mutation in PHP.B’s unique capsid loop disrupted binding. Collectively these results suggest that PHP.B ...

...our comprehensive CRISPR guide Find CRISPR plasmids and resources Find CRISPRa plasmids ...engineered combinations of transcriptional activators to induce gene transcription at genomic sites targeted by...cDNA libraries. However, using CRISPRa to target individual genes can be relatively laborious because multiple... control over its expression. Constitutive or inducible Cre recombinases can be introduced by AAV or by...in defined substructures of the CNS as well as individual neuronal populations.  The Yang Lab’s AAV plasmids... promoter, which was superior in its ability to induce CRISPRa in primary rat neurons over other promoters...straightforward than generating cDNA for each gene isoform individually. To highlight this advantage, they selected ...

...are addressed with ddPCR technology (Hindson et al., 2011, Hindson et al., 2013), which has been shown ...2011): 8604-8610.4. Hindson CM, Chevillet JR, Briggs HA, Gallichotte EN, Ruf IK, Hindson BJ, Vessella RL,...Resources on Addgene.org Find All Available AAV Learn More about Virus Production Find Viral Vector Protocols...value, physical titers don’t necessarily give any indication of the infectious titer. The infectious titer...Although you can optimize your primers for each individual sample, this will reduce convenience and comparability... the assay. This may be due to competition for binding sites between the primers and the AAV genome repeats...Finally, because physical titer does not give an indication of infectious titer, consider titrating each ...