HSP90B1, GRP94, TRA1, Endoplasmin, 94kD glucose-regulated protein, Heat shock protein 90kD beta member 1, Tumor rejection antigen 1, gp96 homolog

HSP90B1 is highly conserved molecular chaperones that have key roles in signal transduction, protein folding, protein degradation, and morphologic evolution. HSP90 proteins normally associate with other cochaperones and play important roles in folding newly synthesized proteins or stabilizing and refolding denatured proteins after stress. HSP90B1 is an endoplasmic reticulum HSP90 protein. Other HSP90 proteins are found in cytosol.