HSP105 Antibody

Heat shock protein 105, also called HSPH1 or HSP110, is a protein that in humans is encoded by the HSPH1 gene. Immunohistochemical analysis localizes HSP105 mainly in the cytoplasm. Database analysis indicates that both HSP105 isoforms are highly conserved during evolution. By analysis of radiation hybrids and human/rodent hybrid cell lines, the HSPH1 gene is mapped to chromosome 13. Both HSP105alpha and HSP105beta are upregulated in HeLa cells exposed to heat shock. HSP105alpha, but not HSP105beta, is also upregulate in response to other cell stresses. Following heat shock, HSP105 relocalizes from a cytoplasmic to perinuclear position. Additionally, it may constitute a major determinant for both prognosis and treatment response in colorectal cancer.