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Showing: 41 - 60 of 918 results
  1. Zhang Lab's CRISPR Frequently Asked Questions

    Type
    Collection
    ...our 'Split RNA' design, where the pre-processing form of crRNA is expressed and a tracrRNA (the helper... from a separate promoter. In the pre-processing form, the crRNA contains 30nt of the target spacer, but...will be processed (i.e., cleaved) into a shorter form that contains 20bp of the target spacer, or in another...Chimeric RNA' design (meaning the mature processed form of crRNA is fused chimerically to a mature tracrRNA...and using Cas9-based genome engineering tools to perform different types of genome targeting. They are very...isolate single-cell colonies, grow them up, then perform individual genotyping (using Sanger sequencing,.... You could then confirm this purification by performing a genotyping assay (such as Sanger sequencing...
  2. Fluorescent Proteins 101: Photoactivatable Fluorescent Proteins

    Type
    Blog Post
    ...neutral (protonated) and anionic (deprotonated) forms of the chromophore which contribute to the 2 peaks...chromophore photoconverts predominantly to the anionic form, causing increased fluorescence when excited with... the chromophore from the neutral to the anionic form, which allows PA-GFP to exhibit up to a 100-fold...violet light, both variants are photoconverted to forms that emit brighter red fluorescence. Since emission...another monomeric PA-FP which unlike mEosFP, can form it’s chromophore at a more comfortable 37°C (5)....scientists later developed red fluorescent PA-FPs by performing several rounds of random mutagenesis screening...are preferred over the monomeric one since the formation of mEosFP’s chromophore requires a temperature...
  3. Science as Art

    Type
    Blog Post
    ...interplay of these two ideas he said “science is a form of art to me… The problem is that scientists sometimes...of conservation.” Appreciating science as an art form taps into an emotional response within the viewer...They can study molecules, analyze terabytes of information on black screens, but not to know even the life...
  4. Arf GTPase Family

    Type
    Collection
    ...superfamily, though recently have been argued to form their own superfamily (Klinger, et al 2016 PMID:...added to this list? Fill out our Suggest a Plasmid form or e-mail [email protected] to help us improve this...from Szutl, et al 2019 PMID: 31084567 . More information about ARF Superfamily members can be found in... table lists genes in the ARF GTPase family, information on each gene, and examples of plasmid types available...table lists genes in the ARF GAP and GEF family, information on each gene, and examples of plasmid types available...
  5. AAVED

    Type
    Collection
    ...asking participants to share practical information in the form of data and protocols showing examples ...Specificity, Serotype specificity, AAV dosing, and Other Forms of Regulation Ben Deverman 2:00 PM Cre-DOG and Combinatorial...using the technology in the lab (e.g., controls to perform, recommended histology conditions, minimum/maximum...etc.), novel applications, or any other useful information. Experimental protocols or schematics. Examples...help contribute to this publication. Citation information for openly shared communication: Adeno-Associated...
  6. Mycoplasma Contamination: Where Does It Come From and How to Prevent It

    Type
    Blog Post
    ... which is available in both liquid and powdered forms. Due to improper handling or poor lab techniques...techniques, mycoplasma can spread through this form of powdered media. Filtration does not ensure complete sterilization...fluorescent microscope, the mycoplasma DNA appears in the form of small clusters, apart from the cellular DNA. ...apart from mycoplasma. Always have a backup in the form of cryopreserved vials of the cell lines even though...laminar airflow before and while you are working. Perform routine checks for mycoplasma contamination, before...the problem of contamination through aerosols. Perform culturing without the use of antibiotics since ...
  7. Google Forums Round Up: First Impressions of NgAgo

    Type
    Blog Post
    ...protein (probably while it is being synthesized) can form a complex with an ssDNA guide. Therefore, researchers...fraction of nascent NgAgo protein molecules manages to form a functional complex with ssDNA leading to inefficient...NgAgo (or a novel endonuclease) protein that can form a complex with a 5’-P-ssDNA guide at room temperature...necessarily represent the views of Addgene. Addgene performs Sanger sequencing on select regions of all distributed...plasmids as part of quality control, but does not perform functional tests. The newest genome engineer sharing...researchers were having difficulty achieving indel formation (gene disruption) with this new technology. To...respondent out of 88 confirmed successful indel formation at a target site. Also, 41 respondents attempted...
  8. Starter guide to induced pluripotent stem cells (iPSCs) part 1:  A renaissance in regenerative medicine

    Type
    Blog Post
    ...derivatives of all three germ layers, form embryoid bodies, and form teratomas [11]. iPSCs also possess ...ESCs are pluripotent stem cells that are able to form all adult cell types and are obtained from the inner...afterwards for ESC research purposes, with the informed consent of the donor [7]. Adult stem cells (ASCs... somatic cell conversion: conversion via iPSC formation, commonly referred to as reprogramming and, direct...
  9. Adenoviral Vector Production and Troubleshooting

    Type
    Blog Post
    ...titer: (Plaque Forming Units (PFU) or Infectious Units (IU), per mL)  Plaque formation assay: permissive... is further protected by histone-like proteins forming the nucleocapsid. B) Three generations of adenoviral...counted and titer is calculated in terms of plaque forming units (pfu), taking initial vector dilution into...presence of RCA in the viral stock by doing a plaque formation assay on A549 cells . Alternatively, antibody-...correct recombinant pAdV plasmid is identified, re-transform into a bacterial strain not prone to recombination...
  10. No Llamas Required - Synthetic Nanobodies Against Membrane Proteins

    Type
    Blog Post
    ...chains and two small light chains that stick out to form the “arms” holding the highly variable regions that...directly provide the three sybody libraries in the form of mRNA for academic research. The template plasmids...ribosome to pause at the end of the mRNA molecule, forming a ribosome complex consisting of the translated...For more information read our secondary nanobodies blog post.  A rapid selection platform for generating...weeks (Zimmermann et al., 2020). This selection platform was designed so that any standard lab can quickly...proteins. The full protocol for this sybody selection platform can be found here and relevant plasmids are available... Synthetic single domain antibodies for the conformational trapping of membrane proteins. eLife 7: . https...
  11. Fluorescent Proteins 101: Green Fluorescent Protein (GFP)

    Type
    Blog Post
    ...(hence the name), which is due to a chromophore formed from a maturation reaction of three specific amino...aspects of GFP was the fact that the chromophore forms spontaneously and without additional co-factors,...efficiency at 37C Y66W Causes the chromophore to form with an indole rather than phenol component (cyan...between two domains of a protein that undergoes conformational change. Typcially two fluorescent proteins ...
Showing: 41 - 60 of 918 results