Mapping information-rich genotype-phenotype landscapes with genome-scale Perturb-seq.
Cell
; 185(14): 2559-2575.e28, 2022 07 07.
Article
in En
| MEDLINE
| ID: mdl-35688146
A central goal of genetics is to define the relationships between genotypes and phenotypes. High-content phenotypic screens such as Perturb-seq (CRISPR-based screens with single-cell RNA-sequencing readouts) enable massively parallel functional genomic mapping but, to date, have been used at limited scales. Here, we perform genome-scale Perturb-seq targeting all expressed genes with CRISPR interference (CRISPRi) across >2.5 million human cells. We use transcriptional phenotypes to predict the function of poorly characterized genes, uncovering new regulators of ribosome biogenesis (including CCDC86, ZNF236, and SPATA5L1), transcription (C7orf26), and mitochondrial respiration (TMEM242). In addition to assigning gene function, single-cell transcriptional phenotypes allow for in-depth dissection of complex cellular phenomena-from RNA processing to differentiation. We leverage this ability to systematically identify genetic drivers and consequences of aneuploidy and to discover an unanticipated layer of stress-specific regulation of the mitochondrial genome. Our information-rich genotype-phenotype map reveals a multidimensional portrait of gene and cellular function.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Genomics
/
Single-Cell Analysis
Language:
En
Journal:
Cell
Year:
2022
Document type:
Article
Country of publication:
Estados Unidos