Tags: Protein.
Guanine nucleotide-binding protein subunit beta-4 is a protein that in humans is encoded by the GNB4 gene.Heterotrimeric guanine nucleotide-binding proteins (G proteins) which integrate signals between receptors and effector proteins are composed of an alpha a beta and a gamma subunit. These subunits are encoded by families of related genes. This gene encodes a beta subunit.