The Caenorhabditis elegans sel-1 gene, a negative regulator of lin-12 and glp-1, encodes a predicted extracellular protein

Barth Grant, Iva Greenwald

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

The Caenorhabditis elegans lin-12 and glp-1 genes encode members of the LIN-12/NOTCH family of receptors. The sel-1 gene was identified as an extragenic suppressor of a lin-12 hypomorphic mutant. We show in this report that the sel-1 null phenotype is wild type, except for an apparent elevation in lin-12 and glp-1 activity in sensitized genetic backgrounds, and that this genetic interaction seems to be lin-12 and glp-1 specific. We also find that sel-1 encodes a predicted extracellular protein, with a domain sharing sequence similarity to predicted proteins from humans and yeast. SEL-1 may interact with the LIN-12 and GLP-1 receptors and/or their respective ligands to down-regulate signaling.

Original languageEnglish (US)
Pages (from-to)237-247
Number of pages11
JournalGenetics
Volume143
Issue number1
StatePublished - May 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Genetics

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