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Science. 1995 Aug 25;269(5227):1102-5.

Similarity of sli-1, a regulator of vulval development in C. elegans, to the mammalian proto-oncogene c-cbl.

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  • 1Howard Hughes Medical Institute, California Institute of Technology, Pasadena 91125, USA.

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.

PMID:
7652556
[PubMed - indexed for MEDLINE]
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