RASGRP1
LOCUS ID10125
GENE_SYMBOLRASGRP1
GENE NAMERAS guanyl releasing protein 1
SYNONYMNSV,RASGRP,hRasGRP1,CALDAG-GEFI,CALDAG-GEFII
CHROMOSOME15
HOMOLOGENE ID4195
GENE SUMMARY
This gene is a member of a family of genes characterized by the presence of a Ras superfamily guanine nucleotide exchange factor (GEF) domain. It functions as a diacylglycerol (DAG)-regulated nucleotide exchange factor specifically activating Ras through the exchange of bound GDP for GTP. It activates the Erk/MAP kinase cascade and regulates T-cells and B-cells development, homeostasis and differentiation. Alternatively spliced transcript variants encoding different isoforms have been identified. Altered expression of the different isoforms of this protein may be a cause of susceptibility to systemic lupus erythematosus (SLE). [provided by RefSeq, Jul 2008]