Anti-Grp94 Antibody (11097) (11097-100ug)

Glucose-regulated protein 94 (Grp94) is an endoplasmic reticulum luminal stress protein which belongs to the Hsp90 family of molecular chaperones. The sequence of Grp94 includes the COOH-terminal tetrapeptide Lys-Asp-Glu-Leu (KDEL) which is a signal sequence that causes proteins to be retained in the pre-Golgi compartments. Expression of Grp94 is up-regulated by stress conditions such as glucose starvation and heat shock, and it functions in intracellular trafficking of peptides from the extracellular space to the MHC class I antigen processing pathway of antigen- presenting cells.