title: Similarity of sli-1, a regulator of vulval development in C. elegans, to the mammalian proto-oncogene c-cbl.
abstract: Vulval induction during Caenorhabditis elegans development is mediated by LET-23, a homolog of the mammalian epidermal growth factor receptor tyrosine kinase. The sli-1 gene is a negative regulator of LET-23 and is shown here to encode a protein similar to c-Cbl, a mammalian proto-oncoprotein. SLI-1 and c-Cbl share approximately 55 percent amino acid identity over a stretch of 390 residues, which includes a C3HC4 zinc-binding motif known as the RING finger, and multiple consensus binding sites for Src homology 3 (SH3) domains. SLI-1 and c-Cbl may define a new class of proteins that modify receptor tyrosine kinase-mediated signal transduction.
authors.affiliation: Howard Hughes Medical Institute, California Institute of Technology, Pasadena 91125, USA.
authors.forename: C H
authors.initials: CH
authors.lastname: Yoon
authors.forename: J
authors.initials: J
authors.lastname: Lee
authors.forename: G D
authors.initials: GD
authors.lastname: Jongeward
authors.forename: P W
authors.initials: PW
authors.lastname: Sternberg
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001665:Binding Sites; D017173:Caenorhabditis elegans / Q000235:genetics* / Q000254:growth & development; D029742:Caenorhabditis elegans Proteins; D017124:Conserved Sequence; D018076:DNA, Complementary / Q000235:genetics; D066246:ErbB Receptors / Q000378:metabolism; D005260:Female; D017238:Genes, Helminth; D005809:Genes, Regulator; D015801:Helminth Proteins / Q000737:chemistry / Q000235:genetics* / Q000378:metabolism; D006801:Humans; D008969:Molecular Sequence Data; D009154:Mutation; D000090063:Proto-Oncogene Mas; D011518:Proto-Oncogene Proteins / Q000737:chemistry / Q000235:genetics*; D050721:Proto-Oncogene Proteins c-cbl; D016415:Sequence Alignment; D015398:Signal Transduction; D044767:Ubiquitin-Protein Ligases; D014844:Vulva / Q000254:growth & development
chemical_list: D029742:Caenorhabditis elegans Proteins; D018076:DNA, Complementary; D015801:Helminth Proteins; C000715470:MAS1 protein, human; D000090063:Proto-Oncogene Mas; D011518:Proto-Oncogene Proteins; C085751:Sem-5 protein, C elegans; C095237:Sli-1 protein, C elegans; D050721:Proto-Oncogene Proteins c-cbl; D044767:Ubiquitin-Protein Ligases; D066246:ErbB Receptors; C085873:let-23 protein, C elegans; C067419:CBL protein, human