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We narrowed to 354 results for: HRE

Showing: 1 - 20 of 354 results

  6. High Complexity Golden Gate Assembly with NEB’s DAD

    Type
    Blog Post
    Published
    Aug. 1, 2023, 1:15 p.m.
    ...avoid palindromes; (3) no overhangs with the same three nucleotides in a row; (4) no more than two nucleotides...data-optimized assembly design (DAD) to build out three tools to help researchers design high-fidelity Golden...courtesy of New England Biolabs.   DAD Tools The three DAD tools used were key for ultra-high-complexity... was needed to massively expand complexity. The three tools developed, outlined below, allow for researchers... fidelity. You can specify number of overhangs, three or four base-pair sequences, and exclude or include....8b00333 Pryor, J. M., Potapov, V., Bilotti, K., Pokhrel, N., & Lohman, G. J. S. (2022). Rapid 40 kb Genome...

  7. What’s in Your Tube?: A Quick Guide to Measuring DNA by Spectrophotometry

    Type
    Blog Post
    Published
    July 1, 2025, 1:15 p.m.
    ...sample — in this case, the absorbance of light at three key wavelengths: 230 nm, 260 nm, and 280 nm. Nucleic...protein levels exceed 70% of the sample content (Loughrey and Matlock, 2016). So, even samples with “good...high levels of phenol (up to 600 ppm according to Loughrey and Matlock, 2017) will yield “good” A260/280 ...Microvolume Spectrophotometers. NEB Tech Note (2019).  Loughrey S and Matlock B. Detection of Protein in Nucleic...Spectrophotometer. Thermo Fisher Scientific Tech Note (2016).  Loughrey S and Matlock B. Detection of phenol in nucleic...

  8. Evolution of Brainbow: Using Cre-lox for Multicolor Labeling of Neurons

    Type
    Blog Post
    Published
    April 24, 2015, 2:39 p.m.
    ...individual cells. The Brainbow-1.0 construct contains three fluorescent proteins: RFP (red), YFP (yellow) and...proteins, with recombination events specified by three loxP variants, but the principles remain the same...absent; stochastic Cre excision results in one of three recombinations, and subsequent recombinations cannot...recombination events leads to a rainbow of colors. With three copies of the construct, one would expect ten colors...) From the seven resulting proteins, they chose three with low levels of both fluorescence and sequence...

  9. Recombinase-based State Machines Enable Order-dependent Logic in vivo

    Type
    Blog Post
    Published
    July 28, 2016, 2:30 p.m.
    ...constructed and tested eight two-input RSMs and three three-input RSMs. The plasmids used to construct these... green fluorescent proteins in each state. The three methods of state interrogation mentioned above (...recognition site array on the register, and all three-input GRSMs use the same recognition site array ...pNR64 pNR187 To construct your own two-input or three-input GRSMs, we recommend using overlap extension...

  10. 28 Hot Plasmid Technologies from 2015

    Type
    Blog Post
    Published
    Dec. 23, 2015, 3:30 p.m.
    ...for spatial and temporal control of cell events Three years ago, Brian Kuhlman’s lab designed photoswitchable...Imaging by Coat protein Knock-off, is made up of three components: a GFP protein that binds to the coding... is based on the recognition of genomic loci by three orthogonal nuclease-inactive Cas9's (dCas9) from...sgRNA binding. By fusing these dCas9s with one of three fluorescent proteins (GFP, BFP and mCherry), the...dCas9. One surprising finding was that, although three of the additional domains tested (VP64, p65, and...of increasing target gene expression, adding all three domains onto dCas9 to generate a dCas9-VP64-p65-...permit easy construction of fusion proteins. These three enzymes were chosen because they cut human and mouse...

  11. Viral Vectors 101: Parts of the AAV Packaging Plasmid

    Type
    Blog Post
    Published
    Dec. 3, 2020, 2:15 p.m.
    ...translational start sites generate the three VP proteins. The three VP proteins assemble into capsid at ...do you start? Plasmids of course! You just need three plasmids to start making the AAVs you need for your...cross-packaging.  Capsid (cap) gene The cap gene encodes three AAV viral capsid proteins VP1, VP2, and VP3, which...

  12. Management for Scientists: Managing vs. Leading

    Type
    Blog Post
    Published
    March 31, 2015, 4:08 p.m.
    ... you just have to know it when you see it? “The Three Stages of Your Career: Doer, Manager, Leader” by...by Charlotte Beers, divides workers into three cycles: Doers, Managers and Leaders. I like her use of ...be in a cycle of doing, managing or leading. All three roles are important to accomplishing any goal or... correct systemic problems. Understanding these three roles allows you to identify what you need to do...

  13. Single-cell tracking of lineage and identity with CellTag

    Type
    Blog Post
    Published
    May 9, 2019, 1:15 p.m.
    ...sequentially tagged with different CellTag libraries at three time points during the 28 day study: prior to reprogramming...reprogramming (CellTagMEF), at the end of the three-day transcription factor reprogramming treatment (...when the iEP phenotype typically emerges. Every three days, a sample of cells was collected for scRNA-...Hnf4α retroviral overexpression cocktail yielded a three-fold increase of fully reprogrammed cells based ...

  14. Advice on Career Paths and the Green Card Process for International Researchers and Entrepreneurs

    Type
    Blog Post
    Published
    Dec. 20, 2017, 2:33 p.m.
    ...require the H-1B employee to work at one of the first three categories of employers. H-1B petitioners are exempt...established case Matter of Dhanasar provides the three-prong test that US Immigration officers use to determine...qualifies for the National Interest Waiver. The three prongs are: (1) The foreign national’s proposed ...institute. For the EB-1B, you need to prove 3 threshold requirements: (1) that you have international ...your specific academic field, (2) that you have three 3 years of research experience in the field, (3)...

  15. 22 Hot Plasmid Technologies from 2014

    Type
    Blog Post
    Published
    Jan. 6, 2015, 5:21 p.m.
    ...comprised of three sets of cloning vectors (Level 0, 1, or 2) which can be utilized in three successive ... and extremely dim GFPs The availability of the three dimensional structure of GFP, its brighter mutant...Opto-RTK constructs – Opto-mFGFR1, Opto-hEGFR, and Opto-hRET – as well as various LOV-domain-mVenus constructs... recombination, each transgene expresses one of three possible fluorescent proteins, chosen for minimal...utility of the system, the researchers developed three new versions. Flipbow employs the Flp recombinase...

  16. Plasmids 101: Modular Cloning

    Type
    Blog Post
    Published
    March 12, 2024, 1:15 p.m.
    ...organization schema MoClo can be broken down into three hierarchical levels: individual DNA parts, transcriptional...terminator. A simple TU could be comprised of just three parts: promoter, gene, and terminator.     ...constructs, through multi-TU assembly,happens via three steps: Level 0: Cloning of basic parts (promoters...into multigene constructs. Figure 2: The three assembly levels of MoClo. Image courtesy of Rob ...

  17. Multiplexed Capture of Promoter-enhancer 3D Chromatin Structures Using CRISPR

    Type
    Blog Post
    Published
    July 2, 2020, 12:40 p.m.
    ...creation of a stable cell line that co-expresses three components: dCas9 with an added biotin acceptor...single genomic location of interest  When these three components are co-expressed, the gRNA targets the...components that need to be delivered to cells from three to two. Lentiviral delivery of BioTAP-tagged dCas9...about chromatin conformations. The Xu lab presented three ways to use CAPTURE 2.0: 1. Multiplex capture of...

  18. Production of Virus in Insect Versus Mammalian Cells

    Type
    Blog Post
    Published
    Nov. 5, 2024, 8:32 p.m.
    ... Production of both AAV and lentivirus requires three plasmids — a transfer plasmid containing your gene...gene of interest plus two packaging plasmids (three packaging plasmids for 3rd generation lentivirus production...cells and cellular debris. While adding time (about three to four days), this second round provides the added...produce AAV and lentivirus if needed # of plasmids Three or four Two Packaging limit ~4.7 kb (AAV); 8–10...

  19. Your Lentiviral Plasmid FAQs Answered

    Type
    Blog Post
    Published
    April 23, 2014, 1:08 p.m.
    ...lentiviral particles are produced by co-transfecting three essential ingredients: the lentiviral packaging ...interest, and the plasmid coding for an envelope. Three generations of lentiviral packaging systems have...the lentiviral transfer vector), rather than the three used for 2nd-generation systems. Frequently asked... pol, and rev. Second-generation contains those three genes plus tat. The envelope plasmid provides ...

  20. Antibiotic Resistance: An Old Solution but a New Problem

    Type
    Blog Post
    Published
    Nov. 10, 2016, 3:30 p.m.
    ...organisms with multi-drug resistance are resistant to three or more different classes, or types, of drugs used...after another bacterium died for instance). These three mechanisms of acquired drug resistance are referred...may seem counter-intuitive considering the other three scenarios, but a short treatment regiment might ...especially if the infection is serious or life-threatening, treatment will often begin before this information...
Showing: 1 - 20 of 354 results