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A Genome-wide CRISPR Death Screen Identifies Genes Essential for Oxidative Phosphorylation.


ABSTRACT: Oxidative phosphorylation (OXPHOS) is the major pathway for ATP production in humans. Deficiencies in OXPHOS can arise from mutations in either mitochondrial or nuclear genomes and comprise the largest collection of inborn errors of metabolism. At present we lack a complete catalog of human genes and pathways essential for OXPHOS. Here we introduce a genome-wide CRISPR "death screen" that actively selects dying cells to reveal human genes required for OXPHOS, inspired by the classic observation that human cells deficient in OXPHOS survive in glucose but die in galactose. We report 191 high-confidence hits essential for OXPHOS, including 72 underlying known OXPHOS diseases. Our screen reveals a functional module consisting of NGRN, WBSCR16, RPUSD3, RPUSD4, TRUB2, and FASTKD2 that regulates the mitochondrial 16S rRNA and intra-mitochondrial translation. Our work yields a rich catalog of genes required for OXPHOS and, more generally, demonstrates the power of death screening for functional genomic analysis.

SUBMITTER: Arroyo JD 

PROVIDER: S-EPMC5474757 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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A Genome-wide CRISPR Death Screen Identifies Genes Essential for Oxidative Phosphorylation.

Arroyo Jason D JD   Jourdain Alexis A AA   Calvo Sarah E SE   Ballarano Carmine A CA   Doench John G JG   Root David E DE   Mootha Vamsi K VK  

Cell metabolism 20160922 6


Oxidative phosphorylation (OXPHOS) is the major pathway for ATP production in humans. Deficiencies in OXPHOS can arise from mutations in either mitochondrial or nuclear genomes and comprise the largest collection of inborn errors of metabolism. At present we lack a complete catalog of human genes and pathways essential for OXPHOS. Here we introduce a genome-wide CRISPR "death screen" that actively selects dying cells to reveal human genes required for OXPHOS, inspired by the classic observation  ...[more]

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