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  1. Plasmids 101: Degron Tags

    Type
    Blog Post
    ...targeting or cloned in-frame to the protein of interest for plasmid-based expression systems. Degron tags...is situated between the degron and the gene of interest and the degron domain is terminal. Between the...elements (protease and degron) and the protein of interest, there is also a protease recognition site. In...the presence of the degron, and the protein of interest is untagged and functions per the usual. In the...FKBP12F36V. By fusing FKPB12F36V to your protein of interest, it can be degraded by this selective degrader...fusion protein. This will target the protein of interest to the proteasome for degradation. Like several...dimerization of an FKBP12F36V fused target protein-of-interest and the CRBN E3 ligase complex leading to ubiquitination...
  2. Antibodies 101: Validation

    Type
    Blog Post
    ...protein of interest endogenously and transfect them with a plasmid encoding your protein of interest. Then ...plasmid encoding your protein of interest, known as Gene of Interest (GOI), and transfect it into your...bioinformatician) to look at RNA expression of your gene of interest across a set of human tissues.  From this data... target. Removing (or reducing) the protein of interest in your sample, should lead to reduced or eliminated...at the subcellular localization of a protein of interest. Conveniently, you found a cell line in which ...from the cells transfected with your protein of interest and show just the faintest band from the cells...on the expression of a new receptor that is of interest to you. You found a couple of antibodies that ...
  3. Protocol - How to Perform a Diagnostic Digest

    Type
    Protocol
    ...Diagnostic Restriction Digest Diagnostic Restriction Digest You may also like... Restriction Digest of ...another. A diagnostic restriction enzyme digest takes advantage of the fact that restriction enzymes cleave ... your plasmid of interest (see below for recommended amounts) Appropriate restriction enzyme (see manufacturer's...Orientation by Restriction Digest If you clone an insert into a vector by a single restriction enzyme, you...DNA Agarose Gel Electrophoresis Introduction Restriction enzymes are naturally occurring bacterial endonucleases...enzymes and the unique sites they recognize, restriction digests have become the most widely used method...cleave DNA at specific sequences called restrictions sites. Often, the size of the plasmid insert and vector...
  4. 22 Hot Plasmid Technologies from 2014

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    Blog Post
    ...method for protein inactivation Your protein of interest does x, but it also participates in y. Depletion...accomplished by knocking down your endogenous protein of interest and co-expressing its replacement recombinant ...into Golden Gate entry vectors via traditional restriction enzyme cloning, TA cloning, or annealing of oligonucleotides...would like to extend this work into their RTK of interest. Grusch, M. et al., EMBO J 2014 Aug 1;33(15)... genetic tag which can be fused to proteins of interest for EM imaging, or targeted to subcellular regions...sequence that effectively targets your gene/region of interest is a key step for CRISPR/Cas9 gene editing. Dr...users blog. New CRISPR plasmids available! Interested in purifying Cas9? Check out pET-28b-Cas9-His...
  5. 28 Hot Plasmid Technologies from 2015

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    Blog Post
    ...cognate peptide epitopes fused to the protein of interest are recognized and thus fluorescently labeled ...modified to use different antibiotic resistances, restriction enzymes and plasmid backbones. pUCXKT contains...fusion of the antibiotic cassette to the gene of interest. The gene to be expressed is amplified using a...gene-specific forward primer containing the desired restriction site (the MCS has several options) and a pUCX-specific...resistance cassette, a ribosome binding site, SacI restriction site and a linker region. The PCR product is ...used with other entry clones encoding the ORFs of interest: Buj et al., BMC Molecular Biology. 2013 August...A desired insert is cloned using traditional restriction enzyme cloning to create an Entry vector containing...
  6. Deep Mutational Scanning with One Pot Saturation Mutagenesis

    Type
    Blog Post
    ...pair of restriction enzymes. These enzymes, Nt.BbvCI and Nb.BbvCI, recognize the same restriction site, ...multiple amino acid changes affect a protein of interest’s function. This technique relies on the generation...deep mutational scanning.     3 reasons to be interested in deep mutational scanning Hundreds of thousands...variable bases (NNN) at any given codon site of interest can be cloned into an expression vector with Gibson...mutagenic primers that tile across a region of interest, generating multiple mutants in one PCR reaction...primer sets tile across the protein or region of interest. A low primer-to-template ratio is used to promote... be sense. Does the orientation of the BbcVI restrict site matter? Most of the time no, but there are...
  7. 5 Great Apps for Lab Life

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    Blog Post
    ...information in the app is restricted to the NEB inventory only, the restriction enzyme sequence resource...smartphone nearby. We tailor these devices to our own interests with the content we store in them: music, emails...comes in handy when I use protocols that require restriction enzymes or PCR. The app contains a double digest...digest tool that is only helpful for NEB restriction enzymes since the instructions use NEB buffers. Nonetheless...name to discover all the information about that restriction enzyme or share it via email with a colleague...colleague. The app is also great if you’re adding a restriction site to a primer, you only need to skim the alphabet...screen to find the sequence for your enzyme of interest. Lastly, the Tm calculator helps you set up an...
  8. GPCRs: How Do They Work and How Do We Study Them?

    Type
    Blog Post
    ...TANGO) (Kroeze et al., 2015). PRESTO-TANGO uses a modified Tango beta-arrestin recruitment assay to measure... examples with plasmids deposited at Addgene.  PRESTO-TANGO: The ligands that activate many GPCRs are...Roth’s lab created an open source resource called PRESTO-TANGO (parallel receptorome expression and screening...this assay, binding of an agonist recruits a beta-arrestin-TEV protease fusion to a receptor-transcription...ligands for unknown GPCRs. You can find the entire PRESTO-TANGO kit at Addgene! TRUPATH: Bryan Roth’s lab... G proteins activated by ligand-bound GPCRs of interest. The TRUPATH plasmid kit consists of 20 plasmids...for more information on this system! GPCR-APEX: Interested in tracking the downstream signaling pathways...
  9. Plasmids 101: Screening Strategies Used in Plasmid Cloning

    Type
    Blog Post
    ...use restriction digest to screen your clones, but there are many other ways to choose restriction enzymes...Blue-white screens rely on vectors where the gene of interest is inserted into the middle of the lacZ gene, ...blue-white screen. Image from Stefan Walkowski.   Restriction digest Another way to distinguish between colonies...inserts from those that do not is by using a restriction digest. The key is to be strategic about your...on whether the plasmid contains your insert of interest or not. For example, choose enzymes that only ...route, check out our protocol video on using restriction digests to analyze plasmids, which can help you... you visualize this process, or visit our restriction analysis blog post. Colony PCR Colony PCR can...
  10. GCE4All: Making Genetic Code Expansion Accessible

    Type
    Blog Post
    ...If you study proteins, you’re probably quite interested in the canonical 20 amino acids. But in your ...your quest to learn more about your protein of interest, you may find the available amino acids a bit…limiting...Shandell et al., 2021).   How it works If you’re interested in using GCE, here are the basic requirements...plasmid will be needed to introduce the gene of interest containing the chosen codon that will result in...of the non-canonical amino acid at the site of interest (figure 1). While the codon used is often one ...getting high enough expression of your protein of interest. If that wasn’t enough, in this development-focused...introducing ncAAs with protein modifications of interest or any of a huge variety of ncAAs to study the...
  11. Advice on Career Paths and the Green Card Process for International Researchers and Entrepreneurs

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    Blog Post
    ...to you as a researcher. National interest waiver The National Interest Waiver (NIW) allows for self-sponsorship...as the National Interest of the EB-1A. Furthermore, the ability to leverage the prestige of the employer...Cap Subject Industry H1B Academic H1B National Interest Waiver EB-1A EB-1B Cap subject industry H-1B...opportunities to develop skills related to their areas of interest. Additionally, since most universities and non-profit...determine if an applicant qualifies for the National Interest Waiver. The three prongs are: (1) The foreign ... and plan for future activities; including the interest of the greater scientific field, potential customers...must be able to show that you serve the national interest to a substantially greater degree than the majority...
  12. Tagging Optogenetics and Chemogenetics Receptors: Fluorescent Proteins and Other Options

    Type
    Blog Post
    ...method to identify the expression of transgenes of interest. Furthermore, fluorophore variants (for example...simultaneous identification of more than one protein of interest. However, in our experience, we found that fluorescent...than an aid, in the expression of the protein of interest. The green fluorescent protein (GFP) and mCherry...interfere with the correct function of the protein of interest. In our studies, we used AAV viral vectors to ...influence on the expression of the transgene of interest and its localization in the membrane. The lesson... can impact the expression of the transgene of interest. In our studies, mCherry interfered with the transport...could help improve the transport of protein of interest the membrane.   Figure 1: Electron microscope...
  13. Visualizing Protein Turnover In Situ

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    Blog Post
    ...-in of fluorescent tags into the gene locus of interest. An advantage of this alternative is the possibility...in situ. I was in luck when I attended a very interesting talk by Prof. Erin M Schuman, a former Caltech...antibodies directed towards two endogenous proteins of interests, suspected to interact, are added to a cellular... strand added to them. Only if the proteins of interest are in close proximity to each other can the DNA... one antibody was directed toward a protein of interest but the second antibody was directed toward AHA...antibodies recognized an endogenous protein of interest that also had incorporated the AHA tag after pulse...time. Thus, only newly synthesized proteins of interest were detected and later visualized by FUNCAT-PLA...
  14. The Scientific Conference Poster Session: Tips for Success

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    Blog Post
    ...including more background on how your virus of interest causes cancer, as well as therapeutic strategies...the conference, map out which posters you are interested in viewing. For most larger conferences, poster...session, so bookmark which posters are of most interest to you a few days in advance. If you don’t have...If you come prepared with a list of posters of interest, then you’ve already set yourself up for success... – kindly let the presenter know you are very interested in his/her work, and would enjoy hearing the ...constraints, there may be particular poster you are interested in viewing which has drawn a large crowd, making...Time permitting, you can go back to the most interesting and popular posters at the end of the session...
  15. Scientist Networking: What is an Informational Interview?

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    Blog Post
    ... do during your training is meet interesting people doing interesting things. I call this building relationships...learning new things from other scientists doing interesting work. Consider this to be like any other research...research project. You’ve met someone whose career interests you or you want to pursue someone doing a job ...nonthreatening request to discuss experience, interests and career path. Because there is no demand for...what networking is about), but be upfront about interest in a job. Ask openly to be connected to someone...people like to help One good place to look for interesting connections is your university’s alumni database...too busy to respond to you). You will uncover interesting opportunities by meeting with people working ...
  16. Viral Vectors 101: Systemic Capsids

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    Blog Post
    ...regions. If you’re interested in studying the brain in a way that goes beyond such restrictions, you may want...Mich et al., 2021) can help restrict expression to your cell type of interest, while miRNA target sites ...large or diffuse biological structures. Of primary interest here are systemic capsids that target the central..., including species, strain, age, sex, area of interest, and health. While it’s always helpful to start...your average AAVs — and have many of the same restrictions, like limited cargo space (~4.7 kb) for your...used to prevent expression in cell types not of interest. Systemic capsids packaging Cre-dependent transgenes... with Cre-expressing transgenic mouse lines to restrict transgene expression to specific tissues and cell...
  17. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

    Type
    Blog Post
    ...Harris Lab relies on the restoration of a frame-shift in mCherry that restores fluorescence to monitor ...that disrupts fluorescence due to a frameshift. Restoration of fluorescence can only occur through editing...results in two DSBs that can be repaired by NHEJ restoring mCherry expression. Cells can then be sorted using...C-to-T editing by the APOBEC-Cas9 editosome would restore eGFP fluorescence, making it easy to quantify single... point mutations in eGFP that results in the restoration of fluorescence. Transient reporter for editing...-GFP conversion and to target specific loci of interest in the genome. The Wang and Brafman lab showed...higher frequency of genomic base pair edits of interest compared to cells segregated solely by a reporter...
  18. FastCloning: A Newer, Simpler Cloning Technique

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    Blog Post
    ...Comparison Between Standard Restriction Cloning and Fast Cloning Requirement Restriction Cloning Fast Cloning...elements of biomedical research. Traditional restriction cloning is one of the oldest of these techniques...purification, ligation, and transformation. While restriction cloning is still routinely performed by many ...Cloning Choose Restriction Enzymes + - PCR Amplification + + Digestion + + Gel Purification + - ...products and digest with methylation sensitive restriction enzyme DpnI to remove the templates. Digestion...graduate student at the University of Connecticut interested in protein science.     References: 1. Celie,... restriction cloning...
  19. Antibodies 101: Introduction to Gating in Flow Cytometry

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    Blog Post
    ...cells of interest do not lie beyond the dimensions displayed in the plot. (B) A more restrictive gate results...of my cells of interest lies within a clear negative population. When you’re interested in measuring a... to select and precisely measure your cells of interest. In many experiments you’ll be working with a ... on the following gates, cells that are not of interest can still be gated out later. Based on personal...(single cells, live cells, my marker stains of interest). Let’s double-click inside our gate and proceed...you have identified and gated on your cells of interest, you will likely need to exclude all duplicate...multiple individual gates around the populations of interest (Figure 6). A.                                                                                               ...
  20. Using Phosphoserine to Study Protein Phosphorylation

    Type
    Blog Post
    ...cloned with an ORF of interest for customized experiments. Once the ORF of interest is cloned into one of...phosphomimetic residues. The phosphorylated residue of interest is mutated to a negatively charged residue, aspartate...plasmid encoding the open reading frame (ORF) of interest (Figure 2). 1. The phosphoserine OTS The backbone...a plasmid encoding their open reading frame of interest. Two expression systems have been verified for...instead of a glutamate which allows the system of interest to be validated first through the production of... generate as much pSer-incorporated protein of interest as possible, some optimization will be necessary...to a single phosphate moiety on the peptide of interest.  After confirming pSer incorporation, researchers...
Showing: 181 - 200 of 748 results