Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

Publication

Synergistic drug combinations for cancer identified in a CRISPR screen for pairwise genetic interactions.

Han K, Jeng EE, Hess GT, Morgens DW, Li A, Bassik MC

Identification of effective combination therapies is critical to address the emergence of drug-resistant cancers, but direct screening of all possible drug combinations is infeasible. Here we introduce a CRISPR-based double knockout (CDKO) system that improves the efficiency of combinatorial genetic screening using an effective strategy for cloning and sequencing paired single guide RNA (sgRNA) libraries and a robust statistical scoring ... [more]

Nat. Biotechnol. Mar. 20, 2017; 0(); [Pubmed: 28319085]

Quantitative Score

  • -6.959 [Confidence Score]

Throughput

  • High Throughput

Ontology Terms

  • phenotype: growth abnormality (HP:0001507)

Additional Notes

  • CRISPR GI screen
  • Cell Line:K562 (EFO:0002067)
  • Experimental Setup:Toxin Exposure: Ricin at LD50 (first two pulses: 0.25 ng/ml ricin, third pulse: 0.3 ng/ml, fourth pulse: 0.35 ng/ml)
  • GIST: A-phenotypic negative genetic interaction
  • Library:Ricin-CDKO CRISPRn library
  • Significance Threshold: q-value<0.05

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
RAB1A RAB2A
Affinity Capture-MS
Affinity Capture-MS

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner is identified by mass spectrometric methods.

High-BioGRID
3365660
RAB1A RAB2A
Co-fractionation
Co-fractionation

Interaction inferred from the presence of two or more protein subunits in a partially purified protein preparation. If co-fractionation is demonstrated between 3 or more proteins, then add them as a complex.

High0.8042BioGRID
1268534
RAB2A RAB1A
Proximity Label-MS
Proximity Label-MS

An interaction is inferred when a bait-enzyme fusion protein selectively modifies a vicinal protein with a diffusible reactive product, followed by affinity capture of the modified protein and identification by mass spectrometric methods.

High220BioGRID
3001423

Curated By

  • BioGRID