BAIT

SOS-1

CELE_T28F12.3, let-341, T28F12.3
sos-1 encodes an ortholog of Son of sevenless, a guanine nucleotide exchange factor; sos-1 is required for viability, sex myoblast migration, vulval induction, and oogenesis; sos-1 acts genetically downstream of let-23 and upstream of let-60 with respect to vulval development; SOS-1 binds bovine calmodulin in vitro in a calcium-dependent manner.
Caenorhabditis elegans
PREY

CGH-1

CELE_C07H6.5, C07H6.5
cgh-1 encodes a putative DEAD-box RNA helicase, orthologous to budding yeast Dhh1p, fission yeast Ste13p, Drosophila ME31B, and human DDX6 (OMIM:600326); CGH-1 inhibits physiological apoptosis in oocytes, keeping it down to a normal level of ~50% in hermaphrodite gonads; independently of apoptosis, CGH-1 is also required for sperm function, oocyte fertilization, and early embryonic cytokinesis; by orthology with budding yeast, CGH-1 is expected to enable decapping-dependent mRNA degradation; CGH-1 is expressed in meiotic germ cells, oocytes, sperm, early embryonic P granules, other unidentified cytoplasmic foci of the gonad core and early embryos, and the germline precursors Z2 and Z3; cgh-1(RNAi) hermaphrodites lose ~100% of their oocytes to physiological apoptosis; gonadal CGH-1 accumulation is suppressed by either glh-1/4 RNAi or gld-1(q485);gld-2(q497) mutations, yet physiological apoptosis (which would normally be elevated by loss of CGH-1) is also abnormally low in these genotypes; cgh-1(RNAi) males have sterile sperm with abnormally short pseudopods; CGH-1 associates with CAR-1, DCAP-2, and CEY-2/3/4 in P granules and cytoplasmic particles of the early embryo; CGH-1 is required for normal CAR-1 localization in early embyros, and binds CAR-1 in an RNA-dependent manner.
Caenorhabditis elegans

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

A global analysis of genetic interactions in Caenorhabditis elegans.

Byrne AB, Weirauch MT, Wong V, Koeva M, Dixon SJ, Stuart JM, Roy PJ

BACKGROUND: Understanding gene function and genetic relationships is fundamental to our efforts to better understand biological systems. Previous studies systematically describing genetic interactions on a global scale have either focused on core biological processes in protozoans or surveyed catastrophic interactions in metazoans. Here, we describe a reliable high-throughput approach capable of revealing both weak and strong genetic interactions in the ... [more]

J. Biol. Sep. 28, 2007; 6(3);8 [Pubmed: 17897480]

Quantitative Score

  • 3.8 [SGA Score]

Throughput

  • High Throughput

Ontology Terms

  • phenotype: organism development variant (WBPHENOTYPE:0000531)

Additional Notes

  • A systematic genetic interaction analysis (SGI) was carried out to detect interactions between 11 query mutants and 858 target genes compromised by RNA interference (RNAi). Interactions were determined using growth scores that indicated whether the resulting number of progeny from the double mutant was significantly different than that of single mutant controls.
  • Negative Genetic

Curated By

  • BioGRID