Source:http://linkedlifedata.com/resource/umls/id/C0061928
CSP: family of proteins which regulate the activities of Ras proteins.,MSH: Proteins that activate the GTPase of specific GTP-BINDING PROTEINS.,NCI: An open or empty space in or between things. (WordNet),NCI: An extensive family of proteins that stimulates the GTPase activity of GTP-binding ras-superfamily proteins.