...advantageous to speak multiple languages - that makes communication with customers from around the world easier....their general job duties. Bigger companies have dedicated technical support teams, sometimes comprised of...and email/phone are the most popular ways to communicate with customers. Online live chat is a convenient...instances, variations of the product’s specific application instructions or “optimized steps” can be linked...customers may tell all sorts of details about the application, just not the ones that matter. Therefore, if...the opportunity to develop interpersonal and communication skills. Problem solving and analytical skills...develop an understanding of when to use these communication skills by working with people from many different...

... than ever to make precise, targeted genome modifications. Cas9 has been modified to enable researchers...instead.  Choosing a Cas9 for site-specific modifications Site-specific deletions and knockouts Some experiments...mutation at a specific site e.g., deleting the catalytic residue of a protein or knocking out a very small...flexibility as to where your sgRNA needs to be located and there may not be a NGG PAM site anywhere to... Beyond SpCas9.” Single base pair edits Is the location and type of edit you need to introduce highly ...Perhaps you need to introduce a single nucleotide modification at a defined amino acid to mimic a patient mutation... mutation or maybe to disrupt a catalytic residue. Good news! You can achieve your precise edit without...

...resources you’ll need ahead of time and mute your notifications during. (Boyes, 2019) If you’ve taken the time... particularly relevant to you. Elect a devil’s advocate. This is the person whose job it is to disagree...think about alternative options. When a devil’s advocate is elected, others may feel they can share opposing...dissenting opinions or ideas. While the best devil’s advocate is one who truly disagrees with the group (because...adamantly for their solution), selecting a devil’s advocate is a good option for any meeting in which the ...other way,” you probably have reason to continue advocating for your idea. Our product team has implemented...also be procrastinators.  If you fall into this category, get out of your head by giving yourself a quick...

...Fluorescent tools for mammalian cells Nanobody purification CRISPRi and CRISPRa system for hPSCs The CRISPR...CRISPR corner New from the viral service Faster catalysis after yeast-based protein evolution By Joanne ...concept, Sanchez and Ting sought to improve the catalytic efficiency of tobacco etch virus protease (TEV...activity with a fluorescent protein--no affinity purification required! The team used other molecular techniques...evolution platform to generate TEV protease variants. Catalysis by TEV protease allows a transcription factor ...information on where exactly a structure or protein is located within a cell. The Goedhart lab, Gadella lab, and...beads. Workflow of nanobody expression and purification. Iwaki et al., Protein Expr Purif, 2020. ...

...original publication and ensure that it includes validation data relevant to your application — and double-check...buffer, consider the subcellular location of your protein. Proteins located in membrane-bound subcompartments...or are looking to preserve specific protein modifications, we recommend doing a little more research into...Blocking solutions Your blocking options come in two categories: protein-based and chemical-based. Before selecting...making membranes inherently “fuzzier” than gels. Quantification If you want to quantify the amounts of protein...available in a pure form, you can perform relative quantification, which measures protein amounts and compares...membrane Increased time Calculate absolute quantification Running a standard curve Uses many wells...

...demonstrate in your application). Beware the myths of scientist “overqualification” but it may not be ...Utilizing existing relationships as part of the job application process can dramatically increase the chances... of a resume can be crucial for a successful application. It takes time to prepare an excellent resume... here for more on timely submission of a job application. 3) Read job descriptions carefully Be open minded...bold. You don’t have to have all of the listed qualifications to apply for a position.  A job description...target someone in a specific department and/or location. The more people you meet the better chance you...

..., just 13 amino acids, but SpyCatcher is a protein. You can fuse SpyCatcher onto things, but even better... Howarth’s lab at the University of Oxford is dedicated to generating new tools to manipulate biology ...particular. They recently introduced the SpyTag/SpyCatcher system, based on a protein isolated from Streptococcus...It came from our work in developing the SpyTag/SpyCatcher system, to be able to grab on to proteins irreversibly... if there are forces acting on them. For the application we were looking at, magnetic isolation of circulating...out the cell capture system.) Cancer and other applications Addgene: What does this technology mean in the...

...beads through an assembly of biotinylated SpyTag-SpyCatcher linkers and spacer proteins ending with a GFP... (Figure 1). This enrichment streamlines the purification and minimizes sample loss while also supporting...scFvs for other targets or could be used for applications beyond cryo-EM.   Find plasmids for MagIC-Cryo-EM...interact with the air-water interface (AWI) before vitrification, they can be completely denaturated (left) or...chemical crosslinking or tilted-stage imaging. A truncated form of a tardigrade LEA, RvLEAMshort, protected...optimizing prime editing systems for specific applications! Delivering prime editors (PEs) via engineered...be delivered in a single package. In a recent publication, the Liu lab showed that this method of delivery...

...knowing that where you see fluorescence indicates your target’s location. Some other terms you might see associated...immunofluorescence? Generally speaking, IF is an application in which antibodies that have been joined to ...bind to a single primary, resulting in signal amplification. Another reason is cost effectiveness. Generating...distribute antibodies validate them in a variety of applications, including IF (or IHC or ICC), and will share...will share their findings either through their publications or as a review on a company website. It is important...Resources on the Addgene blog Learn about research applications of antibodies in Introduction to Antibodies ... for Me? Read about another common antibody application in The Basics of Western Blotting Resources ...

...gene at once. Therefore, applications that require simultaneous modification of all alleles of a gene,... recommends designing homology arms with the modification of interest, ordering them from a gene synthesis...with a homologous repair template. It is this application - the creation of sequence-specific knockins ...clones, making it unsuitable for most in vivo applications.  Third, even in the most optimized tissue-culture...tissue culture based approaches that require modification of only a single allele of a gene, such as the...efficiently deliver large repair templates for applications that require large gene fusions. The current...you’ve been able to check out some of the many applications of AAV in some of our other blog posts and have...

...pathways of DSBs, with a focus on repair for genome modification purposes. How does homology directed repair...specific mutations into the damaged DNA if these modifications exist in the template DNA. There are several... genome engineering world and made targeted modifications feasible and even easy. This targeted-break ...that can be harnessed by researchers for many applications. Your favorite Cas enzyme, a guide RNA to your...modified. In general, the insertion sites of the modification should be very close to the DSB, ideally less...oligodeoxynucleotides)) are commonly used for smaller modifications (~1-50 base pairs). Small edits require as little...Mouse Geneticist's practical guide to CRISPR applications. Singh P, et al. Genetics 114.169771; (2014)...

...neighboring fragments can be created via PCR amplification with primers that contain the appropriate homologous... tools that help you design primers for PCR amplification of fragments to incorporate such regions of ...assembly meets CRISPR Gibson can be adapted to more complicated cloning schemes, such as those where the vector...CRISPR technology and is described in a recent publication by the Lockey lab (Wang, et al. 2015). In this...aspects of the SLIC methods. First, it uses a dedicated 5’ exonuclease instead of using the exonuclease...DNA fragments contain these sites at the correct location and NOT in the middle of your insert. Gateway ...Gateway cloning utilizes λ integrase to catalyze directional cloning of DNA parts that are flanked by orthogonal...

...   Figure 3: Each publication featured in BioGRID ORCS has a dedicated summary page with PubMed...favorite gene was described in a CRISPR screen publication. You see this mentioned in the results section...manually curated and annotated from more than 45 publications, beginning with the seminal research articles...screen curated in ORCS is linked to the original publication via its PubMed identifier, which can also be ...a list of individual screens curated for the publication. Clicking on the screen name takes users to a... supplemental data tables available with the publication are also provided for the user. This approach...

...include: Cataloging a reagent’s performance as in this antibody ReFigure Analyzing replications as in this... ReFigure. Reading and exploration including replications and experiments resulting in “negative data”...small selection of data found in full-length publications. As early career researchers, we wondered how...reagent performs well, or you might publish a replication experiment that you conducted as part of setting...papers as they are not included in traditional publications. By submitting your data to a repository (Figshare...-registration, preprints, data, software, micropublications) in grant proposals. ReFigures are one such...

...advantage of a fusion protein is the efficient purification of an already immobilized target protein. The...immobilization method. One possibility is covalent modification of the purified target protein with the vitamin...positively-charged amino acids. Unfortunately, the location of biotin incorporation and to a lesser extent... ligand, especially if the modified amines are located near the ligand binding site. A selective approach...includes an AviTag and a 6X HisTag for affinity purification (see plasmid map and cartoon below). Including...erythropoietin molecules. The in vivo biotinylation and purification strategy outlined here provides a basis to determine...is barely soluble at RT. Track expression and purification of biotinylated protein on blots with Streptavidin-phosphatase...

...and attP recognition sites on the register and catalyzes their recombination, thereby changing the state...performed on one register at a time. If a particular application makes it difficult to isolate single registers...state read-out method may not be suitable for applications that require minimal cellular perturbation. ...The input plasmid (high copy, ColE1 origin of replication), contains large serine recombinase genes downstream...contains the register. Depending on the desired application, the inducible promoters we used to drive recombinase...register. RSM (See performance data from the indicated figures in our paper (1)) Input Plasmid Output...program to find the one that best suits your application. How efficiently do RSMs work? We tested a two-input...

...including more physiologically-relevant systems, to catch all the important interactions. It’s also important... we found in our map have an impact on virus replication. While we and our collaborators are starting ... Nsp3 and Nsp16, and includes an additional catalytically dead version of the viral protease, Nsp5. Our... 2xStrep-tag for easy detection and affinity purification. All but one are in a pLVX vector background...coronavirus, one FedEx package at a time Since the publication of our paper, our group has been inundated with...sending plasmids to all who request them -- in locations all over the world, as far flung as the EU, Russia...Eckhardt and Melanie Brewer are on the Science Communications Team at QBI UCSF. They are particularly interested...

...2020.  “CRISPR Gene Therapy: Applications, Limitations, and Implications for the Future.” Front. Oncol...with a dominant mutation in a gene that causes cataracts could be rescued by coinjection into zygotes of...the technology in different labs for different applications.” Li’s team noted that CRISPR/Cas9 has been ... explore its potential in mice with a dominant cataract disorder caused by a single copy of a gene known...with size limitations. In addition, non-viral applications are also possible through the use of nanoparticles....  “CRISPR Genome Editing Technology and its Application in Genetic Diseases: A Review.” Current pharmaceutical...

...improve our shipment processes. After reading a publication describing how short term storage on dry ice ...medium, which is buffered and contains the pH indicator phenol red. We froze samples in a -80°C freezer...closed dry ice storage container for 48 hours (to replicate how our viruses are shipped), where they would...exposed to CO2/dry ice. All samples were tested in duplicate. What we found Not all tubes (or rather, not ... the samples were at the control pH of 7.4 as indicated by color (data not shown). What we did next: Venting... at -80°C. We then thawed the tubes after the indicated incubation periods, and measured the pH. We found...Clément N, Byrne BJ, Zolotukhin S. A simplified purification protocol for recombinant adeno-associated virus...

...to the right indicates a higher signal, or upregulation, and a peak to the left indicates a lower signal...anything to the right of it, marking it as GFP+. Quantification for such graphs could simply be the percentage...case for you, switching to a contour plot should indicate where the two populations diverge. The smear ...place your gate based on the dot plot would be complicated.  Figure 2: (A) a smeary dot plot showing...Figure 4 compared to the dot plot in Figure 2. Quantification using MFI makes it easier to identify and study...addgene.org Addgene's Antibody Guide rAb Affinity Purification Protocol Video rAbs in the Addgene repository...