EnzymeBiologically Active SubstanceAmino Acid, Peptide, or Protein
nci:P108
G Protein
nci:P207
C0086376
nci:P325
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>Regulatory proteins that act as molecular switches. They control a wide range of biological processes including: receptor signaling, intracellular signal transduction pathways, and protein synthesis. Their activity is regulated by factors that control their ability to bind to and hydrolyze GTP to GDP. EC 3.6.1.-.</n0:def-definition><n0:def-source>MSH2001</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>G Proteins are a family of small membrane-bound regulatory proteins that act as GTP/GDP-binding molecular switches controlling a wide range of biological processes including: transmembrane receptor signaling, intracellular signal transduction pathways, and protein synthesis. Their activity is regulated by factors that control their ability to bind to and hydrolyze GTP to GDP.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>