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  1. Finding and Joining Your Dream Lab

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    Blog Post
    ...opportunities arise at various times. If the timing and interests align for both parties, he will invite the prospective... Cepko looks for people who are dedicated and interested in science. “Postdoc hires are simpler because...want to do. The experiments must fit with their interests.” George Church selects new hires initially based...full day, gives a 1 hour talk about his or her interests, and spends one-on-one time with the current members...course, the specific research field should be interesting; however, this should (in most cases) not be ...
  2. 7 Tips to Secure a STEAM Internship This Summer

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    Blog Post
    ... of internships as a result of the necessary restrictions on close personal contacts. However, that should...starting an application to assess your eligibility, interest, and career fit. Most internships share a common...likelihood of acceptance to the internship(s) you are interested in.     STEAMid is an app that helps you...Beyond the resume, a cover letter communicates your interest in a specific program, and institution. Consequently...paint a comprehensive picture of your academic interests, potential, and drive. Read the associated prompt...
  3. Viral Vectors 101: Biosensors

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    Blog Post
    ...chemicals, hormones, proteins, etc., that you are interested in. The most obvious component of a biosensor... time. For example, if ATP was the molecule of interest (analyte), and accumulation of ATP activated GFP...for neuronal action potentials; it’s an ion of interest for many disciplines! Most of the sensors designed... the cytosol and sarcoplasmic reticulum are of interest to muscle biologists, while neuroscientists would... monitors associated with specific proteins of interest such as actinin. When tension is high vs. low ...
  4. Viral Vectors 101: Viral Applications

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    Blog Post
    ... to introduce frameshift mutations in genes of interest, turning expression off permanently. Viral vectors...promoter (inducible or constitutive), your gene of interest, and often a selectable marker. This vector can...modification of the viral vector for your gene of interest – an shRNA sequence specific to your gene’s mRNA...mRNA or a sgRNA targeting an exon in your gene of interest, for example. Some customization is required, ... What viruses can do for you Whether you are interested in basic science or clinical therapy—viruses ...
  5. RaPID Detection of RNA-protein Interactions

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    Blog Post
    ...to identify proteins that bind an RNA motif of interest in living cells. Challenges with existing RNA-protein...processing. Require prior knowledge that the protein of interest interacts with RNA. Methods like cross-linking...followed by an antibody pulldown of a protein of interest, much like using ChIP for studying protein and...-binding proteins that interact with an RNA of interest. Current labeling methods are not ideal for in...of the bait, which for RaPID is an RNA motif of interest. See figure 1 below for details on the key components...
  6. Plasmids 101: The protein expression toolbox

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    Blog Post
    ...permanently is to knock out the gene for your protein of interest. CRISPR-Cas9 and a custom gRNA is all you need..., LoxP sites are knocked in flanking a gene of interest (or a single exon) and everything in between those...to a transcriptional repressor to your gene of interest. It will inhibit transcription instead of introducing...system is led, via a custom gRNA, to your gene of interest to temporarily increase expression. There are ...to for degradation. Since the tagged protein of interest is normally expressed, protein levels will quickly...
  7. Plasmids 101: CcdB - The Toxic Key to Efficient Cloning

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    Blog Post
    ...approaching it. These include the traditional restriction enzyme/ligase-mediated method, the more recently...of clones that actually contain your insert of interest. Simply stated, ccdB makes cloning easier by selecting.../19 vectors and demonstrating the concept of restriction enzyme-mediated disruption of ccdB, leading to...replace ccdB with the investigator’s insert of interest. Hence correct clones are identified much more...swapping out” of ccdB with the investigator’s gene of interest.   CcdB resistant E. coli strains complete...
  8. Educational Planarian Tools for Teaching Developmental Biology Techniques

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    Blog Post
    ...Planarians are easy to buy, cultivate, and have interesting phenotypes to study. In addition, the Sánchez...biologists have to extract RNA from their organism of interest, use the RNA to create a complementary DNA (cDNA...for performing targeted knockdowns of genes of interest and was first discovered and characterized in ... other genes in planarians! For those who are interested in performing their own molecular cloning and...more curious” students on how to clone a gene of interest into the empty PR-T4P vector backbone. The empty...
  9. Tips for a 1st time AAV user (by a Rookie AAV user)

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    Blog Post
    ... a SmaI or XmaI restriction enzyme digest (the ITRs contain SmaI and XmaI restriction sites). Another ... transfer plasmid which encodes a transgene of interest that’s packaged into the virus. Two to five days...recombination of duplicated regions like the ITRs. Restriction digest screening for ITR deletion is still necessary...determine the optimal dose of AAV for my cells of interest. Every batch of AAV requires its own MOI optimization...
  10. PhD Applications After COVID

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    Blog Post
    ...whose labs does research that aligns with your interests and goals.  Reaching Out to Potential PIs Even...comprehensive idea of that advisor’s research interests which can be helpful in creating your application...even better, one of their papers!) and express interest in their work Ask if they’re available for an ...professors will not only talk about their own interests, but will ask you questions about your research... yourself and learn more about your schools of interest. Benefits of Online and Hybrid Options Thanks ...
  11. Plasmids 101: Knockout/Knock-In Plasmids

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    Blog Post
    ... out a non-essential gene of interest. However, if your gene of interest is essential, a true knockout... suitable PAM sequences nearby or your gene of interest is difficult to target specifically with a gRNA...that contains sequence homology to the locus of interest. To give you an idea of the process, we’ll walk...resistance gene and the targeted exon in the gene of interest (Figure 4). When recombination occurs, the gene...
  12. Cloning Mammalian Cells with the Agarose Method

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    Blog Post
    ...often make cell lines that overexpress genes of interest; more recently we have also been using Addgene...co-transfected at a favorable ratio to the gene of interest (or, if your protein is fused with a fluorescent... different levels of expression of our gene of interest. Advantages of the agarose cloning method The...researchers, if growth properties in agarose are of interest, cell clones could potentially be picked following...Medical School in Baltimore. She is particularly interested in signaling peptide maturation in neural and...
  13. Multiplexed Capture of Promoter-enhancer 3D Chromatin Structures Using CRISPR

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    Blog Post
    ...gRNA(s) targeting a single genomic location of interest  When these three components are co-expressed...co-expressed, the gRNA targets the dCas9 to the loci of interest and dCas9 is biotinylated by BirA. From here, the...crosslinking captures chromatin interactions, a restriction enzyme digest cuts DNA into smaller pieces, and...line has to be created for each genomic loci of interest. This is cumbersome and also makes it hard to ...Cas9 Variants for Purifying Genomic Regions of Interest Here Brush Up on Your CRISPR Background with Addgene...
  14. CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

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    Blog Post
    ...work anywhere in the genome. Aneesh's research interests include proteomics, machine learning, and visualization...intuition for how genome math helps us to locate interesting addresses in the genome. Let’s now examine how...dies. Order Lentivirus from Addgene If you’re interested in designing your own CRISPR screens for enhancers...alzheimers-affected neurons, or [your cell line of interest], is the foundation of precision medicine. We ...is a collaborative database. Aneesh's research interests span machine learning, proteomics, and user interfaces...
  15. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

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    Blog Post
    ...of the gene of interest, or expressed from the same transcript as the gene of interest, but after an internal...Placing GFP under the control of a promoter of interest can be used to effectively monitor gene expression... portions of EGFP are fused to the proteins of interest, and when they come into close proximity, the ...be used, when put under control of promoters of interest, to visualize the developmental stage at which...
  16. CRISPR-based Genome Editing Systems For Editing in E. coli

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    Blog Post
    ...contains the sgRNA targeting the genomic site of interest. The donor template is supplied separately. To...containing another sgRNA targeting another site of interest can be used to make other edits. Once you have... pTargetF with the ccdB gene containing BsaI restriction enzyme sites at its ends to generate pEcgRNA....replaced by the sgRNA targeting the genomic site of interest. We compared the pCas/pTargetF system with the..., we were able to successfully delete genes of interest in BL21(DE3) using the newly generated pEcCas/...
  17. Plasmids 101: Broad Host Range Plasmids

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    ...plasmid does not have many restriction enzyme sites. Hosts often have a restriction barrier as a defense mechanism...use of their restriction enzymes (Meyer et al. 1977). So if a plasmid has few restriction sites, it may...R. (1977). Physical and genetic studies with restriction endonucleases on the broad host-range plasmid...
  18. Antibodies 101: Immunoprecipitation

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    Blog Post
    ... both a sample known to express the protein of interest, such as a sample transiently transfected or stably... stably infected with the protein of interest and a sample that does not. Common negative controls include...c-Myc, GFP or V5 can be used to tag the protein of interest on the C- or N-terminus. In this variation, called...against the tag is used to isolate the protein of interest. The wide availability and high specificity of...protein or interfere with protein interactions of interest. Tagged proteins are typically expressed at much...
  19. CRISPR Methods for Bacteria: Genome Engineering, CRISPRa, CRISPRi, Base Editing, and More

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    Blog Post
    ...pCRISPR: carries a spacer targeting the gene of interest and kanamycin resistance E. coli carrying the...template. Through recombineering, the locus of interest is modified to match the repair template, and ...sequence persists, Cas9 will cleave the gene of interest, inducing a lethal DSB.     This system is distinct... a repair template, using Gibson Assembly or restriction enzyme cloning. Streptomyces bacteria are more...bacteria including in pooled, genome-wide, formats. Interested in knowing more? Check out our Mobile CRISPRi...contain BsaI sites for easy cloning of a gRNA of interest. Cytidine and adenine base editing in Streptomyces...
  20. Fluorescent Proteins 101: When GFP lets you down

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    Blog Post
    ...fusion protein. Also, in cases where the protein of interest is relatively small, adding GFP may alter diffusion...protein. Effectively, it equips the protein of interest with an additional protein module that can report...proteins in cells, but not other biomolecules of interest e.g. DNA, RNA, and lipids. Still, these molecules...domains that specifically bind the molecule of interest. For instance, pleckstrin homology domains can...GFP into the coding sequence of the protein of interest. One of the reasons that this works well is that...
Showing: 261 - 280 of 748 results