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  1. Neuronal labeling with Spaghetti Monster

    Type
    Blog Post
    Published
    Aug. 14, 2018, 12:42 p.m.
    ...hemagglutinin (HA), myelocytomatosis viral oncogene (myc), simian virus 5-derived epitope (V5), the synthetic...pdb-top63. PubMed PMID: 20150100. 4. Shaner, Nathan C., George H. Patterson, and Michael W. Davidson. "Advances...
  2. How to Write a Scientific Review Article

    Type
    Blog Post
    Published
    Feb. 16, 2017, 3:30 p.m.
    ... you casually mention “Haery et al., showed that MYC expression was increased…” when discussing the review...perfect. Good luck! References 1. Haery, Leila, Ryan C. Thompson, and Thomas D. Gilmore. "Histone acetyltransferases...
  3. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ... Cas9 into n-terminal (Cas9(N)-2xNLS) and c-terminal (Cas9(C)-2xNLS) fragments facilitates target DNA ...activation, the c-terminal cas9 fragment was fused with FK 506 binding protein 12 (Cas9(C)-FKBP-2xNLS) and...export sequence. Treatment with rapamycin induces Cas9(N)-FRB-NES and Cas9(C)-FKBP-2xNLS dimerization and...while there are many types of epitope tags (eg. HA, MYC, Flag), they can be deleterious and cause aberrant...them to popularly used epitopes tags such as HA and MYC in vivo. The authors found that fusions to one particular...an n-terminal DNA recognition domain and a mostly c-terminal nuclease domain. Feng Zhang's group utilized...genes using dCas9-VP64 activator fragments (dCas9(C)-FKBP-2xNLS-VP64 and dCas9(N)-FRB-NES). This system...
  4. Even more elegant: Single injection CRISPR/Cas9 in C. elegans

    Type
    Blog Post
    Published
    July 7, 2015, 3:36 p.m.
    ...genome engineering methods for C. elegans were released, signaling a new era in C. elegans research. Homology...of custom genomic modifications, is very robust in C. elegans, and the methods for HDR-mediated modification...the University of North Carolina has made CRISPR in C. elegans even easier - now, one can generate a fluorescent...-based gene tagging approach Multiple features of C. elegans have made CRISPR/Cas9 so successful in this...previously used a transgene selection strategy for their C. elegans/CRISPR experiments, but this strategy required... make it possible fluorescently label proteins in C. elegans, they inserted the SEC into a synthetic intron...system is both simple to use and highly efficient for C. elegans genome modification. Figure 2: Schematic...
  5. Hot Plasmids: Fall 2024

    Type
    Blog Post
    Published
    Nov. 21, 2024, 1:30 p.m.
    ...Optimized mScarlet-based tags for live imaging in C. elegans CRISPR/Cas9 for gene disruption in M. abscessus...tagging proteins, as it can be fused to the N- or C-terminus (or even in the middle of proteins) and performs.... E., Young, D. F., Goswami, K. K., & Russell, W. C. (1987). Isolation and characterization of monoclonal...39406745. Optimizing mScarlet tags for live imaging in C. elegans By Alyssa Neuhaus Red fluorescent proteins...maturation rate limits its use in systems like the C. elegans embryo, where developmental processes happen...recently generated new constructs specifically for C. elegans (Cao et al., 2024). The team designed coding...mScarlet3 and mScarlet-I3 that were codon-optimized for C. elegans and included artificial introns to improve...
  6. 27 Hot Plasmids from 2016

    Type
    Blog Post
    Published
    Dec. 22, 2016, 3:03 p.m.
    ... 79628 (C) Cv (capsid) N and C 79633 (N) and 79641 (C) NS1 (var: W98G) N and C 79635 NS3 C 79637...79637 NS2B C 79636 NS4A N 79640 NS4B C 79639 NS5 C 79632 (N) and 79631 (C) PrM N and C   Detecting...tagged BioID2 for N-terminal fusions and Myc tagged BioID2 for C-terminal fusions. Kim, et al. Mol Biol...streamline CRISPR/Cas9-based genetic tag insertion in the C. elegans genome, Erik Jorgensen’s lab from the University...paramagnetic ferritin protein were tethered to the C-terminus of TRPV4 (a pressure-sensitive channel). ...Rodríguez-Laureano L, Albanese SK, Gradia S, Jeans C, Seeliger MA, Levinson NM, Chodera JD. bioRxiv preprint...pharmaceutical industry, depend on the yeast, Saccharomyces cerevisiae, as a key host for the production...
  7. CRISPR 101: Cytosine Transversion Editors

    Type
    Blog Post
    Published
    March 25, 2025, 1:15 p.m.
    ...transversions C → TG → A A → GT → C C → G                   C → AG → C                   G → T A → C                   ...Rosser, S. J., Bi, C., & Zhang, X. (2021). Glycosylase base editors enable C-to-A and C-to-G base changes...deaminase could also perform cytidine (C) deamination, converting the C base to uracil (U). This is the same...given the pithier name CGBE1, for “C → G Base Editor 1,” and had a C → G editing efficiency of up to 68%...Beyond UNG: Optimizing C → G editors Now that several labs had shown that preferential C → G editing was possible...pyrimidines (C ↔ T).   Base transversion  Base changes from purine (A or G) to pyrimidine (C or T) or vice-versa...type of base editor invented. CGBE C → G Base Editor Converts C → G; also called a glycosylase base ...
  8. Five Popular Model Organisms

    Type
    Blog Post
    Published
    April 11, 2019, 12:39 p.m.
    ...an ortholog in C. elegans making it ideal to study basic molecular biology processes. C. elegans are also...PMCID: PMC5525645. Mello, Craig C., et al. "Efficient gene transfer in C. elegans: extrachromosomal maintenance...lab to study neuronal development (Brenner, 1973). C. elegans are small, transparent worms that have a ...life cycle and large brood sizes. The majority of C. elegans are also self-fertile hermaphrodites making... Nobel Prize in 2006. One of  major advantages of C. elegans is that they are transparent throughout their...GCaMP6 (Nguyen et al., 2015). If you are interested in C. elegans plasmids and resources check out Addgene’... of the fly (Pfeiffer et al., 2010). Yeast (Saccharomyces cerevisiae) Yeast, one of the simplest eukaryotic...
  9. Viral Production at Addgene

    Type
    Blog Post
    Published
    Oct. 24, 2023, 1:15 p.m.
    ...80 °C. Titer All titering is performed on lentiviral preparations that have been stored at -80 °C and ...Preparations are then aliquoted and stored at -80 °C. Titer Titering is either performed by Addgene or ...preparations are then aliquoted, frozen, and stored at -80 °C. Concentrated lentiviral preparations (“-LVC” catalog..., and is routinely tested for mycoplasma contamination using mycoplasma detection kits. Cell line is maintained... tested for mycoplasma contamination. To date, Addgene has never had a case of mycoplasma contamination...normalization purposes are being used. Quality Control Mycoplasma Our 293T cell line was obtained directly from...
  10. Plasmids 101: Choosing an Antibiotic Resistance Gene

    Type
    Blog Post
    Published
    Oct. 10, 2023, 1 p.m.
    ...jcm.23.5.959-961.1986 Lobstein, J., Emrich, C. A., Jeans, C., Faulkner, M., Riggs, P., & Berkmen, M. (2012...References Hwang, J. M., Piccinini, T. E., Lammel, C. J., Hadley, W. K., & Brooks, G. F. (1986). Effect...Slow transformation   Spectinomycin/streptomycin Spectinomycin and streptomycin both inhibit protein synthesis.... Pros: Stable (spectinomycin). Cons: Cost (spectinomycin) or stability (streptomycin), doesn’t work for... for transformations. Con: Expensive.   Kanamycin Kanamycin, or kan, is an aminoglycoside which inhibits...Like carb, spectinomycin is the more stable and expensive antibiotic compared to streptomycin. Spectinomycin...Spectinomycin/streptomycin can be successfully used for plant and bacterial culture, but some types of bacteria...
  11. Quickest Way to Deposit Plasmids: The Deposit Spreadsheet

    Type
    Blog Post
    Published
    March 8, 2017, 3:15 p.m.
    ...difficult to grow. Growth Temp Choose from 30 °C, 37 °C, or room temperature. Growth Strain Please...frog), D. rerio (zebrafish), D. melanogaster (fly), C. elegans (nematode), S. cerevisiae (budding yeast)... gentamicin, hygromycin, kanamycin, nourseothricin (clonNat), spectinomycin, streptomycin, tetracycline...maintain a glycerol stock. Choose from: ampicillin, apramycin, blasticidin, bleocin (zeocin), chloramphenicol...
  12. Don’t FRET: Bimolecular Fluorescence Complementation Makes Visualizing Protein-Protein Interactions Easy

    Type
    Blog Post
    Published
    Aug. 27, 2020, 1:15 p.m.
    ...Jung JP, Pack C-G, Huh W-K (2018) Global analysis of protein homomerization in Saccharomyces cerevisiae....information, you can fuse each FP fragment to the N- and C-terminal end of each PIP and empirically test which...R, Björklund M, Ahr D, Ahmed AW, Spinelli L, Brun C, Basler K, Merabet S (2018) Generation of a versatile.... eLife 7. https://doi.org/10.7554/elife.38853 Hu C-D, Chinenov Y, Kerppola TK (2002) Visualization of...https://doi.org/10.1101/gr.231860.117 Kodama Y, Hu C-D (2012) Bimolecular fluorescence complementation ...
  13. Tips for Screening with Yeast Two Hybrid Systems

    Type
    Blog Post
    Published
    Oct. 22, 2015, 2:30 p.m.
    ...El-Bakkoury, M., Hamacher, T., Cappellaro, C., Vilarino, C., Fleischer, C., Ellerbrok, H., Kamuzinzi, R., Ledent...organisms, including bacteria, alternative fungi (C. albicans, pC2HB) (7) and mammalian cells. If the ... prey libraries can be screened using both N- and C-terminal fusions of these proteins. This way both ...Two hybrid systems were developed in Saccharomyces cerevisiae in 1989 and are still used extensively ...
  14. Simple CRISPR-based Epigenetic Editing: dCas9-directed DNA Demethylation

    Type
    Blog Post
    Published
    Dec. 14, 2021, 2:15 p.m.
    ...02708-5 Hrit J, Goodrich L, Li C, et al. (2018) OGT binds a conserved C-terminal domain of TET1 to regulate...89–92. https://doi.org/10.1038/301089a0. Galonska C, Charlton J, Mattei AL et al (2018). Genome-wide tracking...https://doi.org/10.7554/eLife.34870.  Kaas GA, Zhong C, Eason DE, Ross DL, Vachhani RV, Ming G-L, King JR...lentiviral backbones expressing blasticidin or puromycin resistance genes.  It’s that simple! Good luck...
  15. CRISPR Methods for Bacteria: Genome Engineering, CRISPRa, CRISPRi, Base Editing, and More

    Type
    Blog Post
    Published
    Sept. 28, 2020, noon
    ... of cytidine and adenine base editors that enable C-to-T and A-to-G base substitutions respectively. Substitutions...:723–728 . https://doi.org/10.1021/sb500351f Dong C, Fontana J, Patel A, Carothers JM, Zalatan JG (2018... https://doi.org/10.1016/j.cell.2013.02.022 Ronda C, Pedersen LE, Sommer MOA, Nielsen AT (2016) CRMAGE...Vridhambal GS, Rivera AJ, Montgomery SA, Fortier L-C, Barrangou R, Theriot CM, Ousterout DG (2020) In Vivo...shorter plasmid curing time. pCRISPomyces for editing in Streptomyces  Streptomyces bacteria produce a wide...created two “pCRISPomyces” systems for use in Streptomyces (Cobb et al., 2015). pCRISPomyces-1 includes ...array, while pCRISPomyces-2 contains Cas9 and a gRNA cassette. The simpler system of pCRISPomyces-2 displays...
  16. CRISPR 101: Non-Homologous End Joining

    Type
    Blog Post
    Published
    April 16, 2015, 3:45 p.m.
    ...Oh S, Tomkinson AE, Hendrickson EA, Giovannangeli C, Jasin M, Brunet E (2014) Chromosomal Translocations.../10.1016/j.molcel.2014.08.002 Ran FA, Hsu PD, Lin C-Y, Gootenberg JS, Konermann S, Trevino AE, Scott DA... Yan M-Y, Li S-S, Ding X-Y, Guo X-P, Jin Q, Sun Y-C (2020) A CRISPR-Assisted Nonhomologous End-Joining...End-Joining Strategy for Efficient Genome Editing in Mycobacterium tuberculosis. mBio 11: . https://doi.org/10.1128...
  17. Four Base Editing Reporters to Monitor and Enrich Editing in Real-time

    Type
    Blog Post
    Published
    July 7, 2020, 1:15 p.m.
    ...expressed to identify successfully transfected cells. C-to-T editing by the APOBEC-Cas9 editosome would restore...codon that is converted to a ‘TAC’ or ‘TAT’ after a C-to-T base editing event. This edit changes the histidine... ATG codon from an ACG codon using a base-editor (C>T conversion) they could induce the translation of...Liu DR (2017) Programmable base editing of A•T to G•C in genomic DNA without DNA cleavage. Nature 551:464... a mScarlet reporter, luciferase reporter, and neomycin resistance reporter. Image adapted from Katti ...
  18. Advanced Uses of Cre-lox and Flp-FRT - A Neuroscientist’s View

    Type
    Blog Post
    Published
    Oct. 19, 2017, 1:54 p.m.
    ...optimum of 30 °C and is therefore inefficient in mammalian cells (usually grown at 37 °C). Smart molecular...identification of FLPe which has a temperature optimum of 37 °C (Buchholz, Angrand, and Stewart 1998). FLPe’s performance... receptor (ER) ligand binding domain (LDB) to the C-terminus of FLP or Cre (pCAG-CreERT2 #14797). These...Sadowski. 1985. “The FLP Recombinase of the Saccharomyces Cerevisiae 2 Micron Plasmid Attaches Covalently...
  19. Hot Plasmids and Viral Preps - March 2021

    Type
    Blog Post
    Published
    March 23, 2021, 1:15 p.m.
    ...interactions New auxin inducible degron system for C. elegans New CRISPR plasmids New items from the viral...tool-kit for the auxin inducible degron (AID) system in C. elegans By Alyssa Cecchetelli The auxin inducible... degron (AID) system has been extensively used in C. elegans since 2015 to conditionally degrade proteins...repression, and editing with a single Cas9-VPR in Saccharomyces cerevisiae. To control Cas9 activity and influence...
  20. Getting the Most from Your Lentiviral Transduction

    Type
    Blog Post
    Published
    April 7, 2016, 2:30 p.m.
    ... for less than a day, lentivirus can be kept at 4°C. For long-term storage, viral preps should be divided...divided into single-use aliquots, and stored at -80°C. Some reports suggest rapidly freezing virus in a ... labs and hinders experiments is mycoplasma contamination. Mycoplasma contamination has been shown to ...routinely test for mycoplasma contamination. There are several commercially available mycoplasma detection kits...larger microbes such as yeast, fungi, or bacteria, mycoplasma can be extremely hard to detect with levels reaching...cells per ml before the media becomes cloudy. Mycoplasma compete with host cells for nutrients and can...the cell line’s growth and behavior. Signs of a mycoplasma contamination can be subtle and may include reduced...
Showing: 21 - 40 of 60 results