title: The sequence and associated null phenotype of a C. elegans neurocalcin-like gene.
abstract: The neuronal calcium sensor (NCS) proteins belong to a subfamily of the EF-hand calcium binding proteins. These proteins are primarily expressed in the nervous system and currently include more than 20 members across species [Nakayama et al., J Mol Evol 34:416-448, 1992]. Two homologues of the ncs genes, Ce-ncs-1 and Ce-ncs-2, have recently been identified in the nematode C. elegans. Here we report the cDNA sequence of a third C. elegans ncs homologue, Ce-ncs-3. We demonstrate that a null mutation in this gene caused by a large deletion in the locus does not confer a visible phenotype in C. elegans. This, in addition to the strong homology between Ce-NCS-3 and the other C. elegans NCS proteins, may indicate functional redundancy between the three genes.
authors.forename: S
authors.initials: S
authors.lastname: Rajaram
authors.forename: M M
authors.initials: MM
authors.lastname: Sedensky
authors.forename: P G
authors.initials: PG
authors.lastname: Morgan
mesh_terms: D000483:Alleles; D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D017173:Caenorhabditis elegans / Q000235:genetics*; D002135:Calcium-Binding Proteins / Q000235:genetics*; D018076:DNA, Complementary / Q000235:genetics; D008969:Molecular Sequence Data; D009419:Nerve Tissue Proteins / Q000235:genetics*; D051596:Neurocalcin; D044169:Receptors, Calcium-Sensing; D016415:Sequence Alignment
chemical_list: D002135:Calcium-Binding Proteins; D018076:DNA, Complementary; D009419:Nerve Tissue Proteins; D051596:Neurocalcin; D044169:Receptors, Calcium-Sensing