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CRISPR Kinome Libraries Available: Pooled and Individual Plasmid Formats

Posted by Guest Blogger on Sep 9, 2016 10:43:16 AM

This post was contributed by guest blogger, member of the Addgene Advisory Board, and Associate Director of the Genetic Perturbation Platform at the Broad Institute, John Doench.

A genetic screening project can be a tremendous undertaking, producing a wall of results that can only be described as bigly. But such a project should not be undertaken lightly. Whether executed in arrayed or pooled format there are of course materials costs, regardless of who is paying for them. More importantly, there’s the opportunity cost of your time; an investment of months of your life that may end with little more than an Excel spreadsheet of random numbers that’ll leave you, well, #sad.

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Topics: CRISPR

Better Dyeing Through Chemistry & Small Molecule Fluorophores

Posted by Guest Blogger on Sep 8, 2016 10:30:00 AM

This post was contributed by guest blogger, Luke Lavis, a Group Leader at the Janelia Research Campus, Howard Hughes Medical Institute.

Chemistry is Dead, Long Live Chemistry!

The discovery of green fluorescent protein (GFP) sparked a renaissance in biological imaging. Suddenly, cell biologists were no longer beholden to chemists and (expensive) synthetic fluorophores. Add a dash of DNA with an electrical jolt and cells become perfectly capable of synthesizing fluorophore fusions on their own. Subsequent advances in fluorescent proteins have replicated many of the properties once exclusive to small-molecules: red-shifted spectra, ion sensitivity, photoactivation, etc. These impressive advances lead to an obvious question: In this age of GFP and its ilk, why should cell biologists talk to chemists?

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Topics: Imaging, Fluorescent Proteins

Adapting Toehold Switches to Detect Zika Virus

Posted by Guest Blogger on Aug 30, 2016 10:30:00 AM

This post was contributed by guest bloggers Keith Pardee and Alexander A. Green.

Zika Background

First identified in 1947 in Uganda, the Zika virus had received little attention and, for the most part, had been associated with low morbidity and mild symptoms. This changed in January with the report of an outbreak of the virus in Brazil that was correlated with greater rates of infection and rare, but severe, symptoms, including the development of fetal microcephaly and Guillain-Barré syndrome. In response, the World Health Organization has declared a global health emergency and called for the fast-tracked development of diagnostics. Mostly transmitted by Aedes mosquitoes (aegypti and albopictus) and, aided by international travel, the Zika virus is expected to expand into heavily populated regions of South, Central, and North America. Diagnostics will play an important role in helping to monitor and slow this spread until vaccine programs can be put in place to provide community protection.

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Topics: Synthetic Biology

Cas9 Activators: A Practical Guide

Posted by Guest Blogger on Aug 18, 2016 10:30:00 AM

This post was contributed by guest bloggers Marcelle Tuttle and Alex Chavez, researchers at the Wyss Institute for Biologically Inspired Engineering.

Listen to Our Podcast Interview the Alex Chavez

Background on Cas9 Activators


CRISPR/Cas9
is an enormously plastic tool and has taken the scientific world by storm. While Cas9 has been most widely used to create specific edits in DNA, there has also been significant work on constructing Cas9 transcriptional activators. These constructs allow for the upregulation of essentially any gene by fusing mutants of Cas9 deficient in DNA cutting activity to a transcriptional activation domain (Fig 1).

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Topics: CRISPR

CRISPR Between the Genes: How to Experiment with Enhancers and Epigenomics

Posted by Guest Blogger on Aug 9, 2016 10:30:00 AM

This post was contributed by guest blogger, Aneesh Karve, CTO at Qult Data. This post was originally published on the Quilt Genomics Blog and is republished here with permission.

Quilt is a collaborative database for genomics. In this article, Quilt CTO Aneesh Karve, shows how to design experiments that work anywhere in the genome. Aneesh's research interests include proteomics, machine learning, and visualization for big biology.
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Topics: CRISPR

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