Anti-Grp75 Antibody Picoband® (monoclonal, 4I9)

HSPA9 (heat shock 70kDa protein 9 (mortalin) ), also known as GRP75, mot-2, mthsp75, PBP74, HSPA9B, MORTALIN or MORTALIN, PERINUCLEAR, is a highly conserved member of the HSP70 family of proteins. It functions as a chaperone in the mitochondria, cytoplasm, and centrosome. The HSPA9 gene is mapped to chromosome 5q31.2 based on an alignment of the HSPA9 sequence with the genomic sequence. Knockdown of HSPA9 in erythroid cultures was associated with an increased number of cells in the G0/G1 phase of the cell cycle and accelerated apoptosis. Knockdown of Hspa9 in mouse bone marrow cells, followed by transplantation into wildtype recipients, also resulted in loss of erythroid cell number. Haploinsufficiency for HSPA9 may contribute to abnormal hematopoiesis in myelodysplastic syndromes. This protein plays a role in the control of cell proliferation.

1. Chen, T. H.-P., Kambal, A., Krysiak, K., Walshauser, M. A., Raju, G., Tibbitts, J. F., Walter, M. J. Knockdown of Hspa9, a del (5q31.2) gene, results in a decrease in hematopoietic progenitors in mice. Blood 117: 1530-1539, 2011. 2. Gross, M. B. Personal Communication. Baltimore, Md. 9/12/2011. 3. Kaul, S. C., Wadhwa, R., Matsuda, Y., Hensler, P. J., Pereira-Smith, O. M., Komatsu, Y., Mitsui, Y. Mouse and human chromosomal assignments of mortalin, a novel member of the murine hsp70 family of proteins. FEBS Lett. 361: 269-272, 1995.

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.