Claim: The HSP90AB1 (which is a molecular chaperone) is a protein that in humans is encoded by the HSP90AB1 gene which are classified into five major groups.
Evidence: Heat shock protein HSP 90-beta also called HSP90beta is a protein that in humans is encoded by the HSP90AB1 gene. HSP90AB1 is a molecular chaperone. Chaperones are proteins that bind to other proteins, thereby stabilizing them in an ATP-dependent manner. Human HSPs are classified into 5 major groups according to the HGNC: