Nov 27, 2015

BAGEL: A computational framework for identifying essential genes from pooled library screens.

BioRxiv : the Preprint Server for Biology
Traver Hart, Jason Moffat

Abstract

Background: The adaptation of the CRISPR-Cas9 system to pooled library gene knockout screens in mammalian cells represents a major technological leap over RNA interference, the prior state of the art. New methods for analyzing the data and evaluating results are needed. Results: We offer BAGEL (Bayesian Analysis of Gene EssentiaLity), a supervised learning method for analyzing gene knockout screens. Coupled with gold-standard reference sets of essential and nonessential genes, BAGEL offers significantly greater sensitivity than current methods, while computational optimizations reduce runtime by an order of magnitude. Conclusions: Using BAGEL, we identify ~2,000 fitness genes in pooled library knockout screens in human cell lines at 5% FDR, a major advance over competing platforms. BAGEL shows high sensitivity and specificity even across screens with highly variable reagent quality.

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Mentioned in this Paper

Genes
HAMP
Gene Library
Adaptation
Mice, Knockout
Clustered Regularly Interspaced Short Palindromic Repeats
Analysis
cDNA Library
Gene Knockout Techniques
RNA Interference

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