Anti-HSPA4 Antibody Picoband®

Heat shock 70 kDa protein 4 is a protein that in humans is encoded by the HSPA4 gene. The heat shock protein HSPA4 (Apg-2, HSP70RY) is a member of the heat-shock protein 110 (Hsp 110) subfamily of Hsp70 heat-shock proteins. Apg-2 has chaperone ability similiar to Hsp110, and it plays a role under non-stress conditions. Apg-2 interacts with TJP1/ZO-1 and functions as a regulator of ZO-1-ZONAB signaling in epithelial cells in response to cellular stress.

A synthetic peptide corresponding to a sequence at the C-terminus of human HSPA4, which shares 95.2% amino acid (aa) sequence identity with both mouse and rat HSPA4.

1. Fathallah, D. M., Cherif, D., Dellagi, K., Arnaout, M. A. Molecular cloning of a novel human hsp70 from a B cell line and its assignment to chromosome 5. J. Immun. 151: 810-813, 1993. Note: Erratum: J. Immun. 151: 6616 only, 1993. 2. Gross, M. B. Personal Communication. Baltimore, Md. 10/22/2020. 3. Mohamed, B. A., Barakat, A. Z., Held, T., Elkenani, M., Muhlfeld, C., Manner, J., Adham, I. M. Respiratory distress and early neonatal lethality in Hspa4l/Hspa4 double-mutant mice. Am. J. Resp. Cell Molec. Biol. 50: 817-824, 2014.

At -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freezing and thawing.