Osmotic Stress Protein 94 (Osp94)
Osmotic Stress Protein 94 (Osp94)
复制标题
渗透应激蛋白 94 (Osp94)
DOI:
--
复制
发表时间:
1996
影响因子:
4.8
通讯作者:
S. Gullans
中科院分区:
文献类型:
--
作者:
R. Kojima;J. Randall;B. Brenner;S. Gullans
Preservation of cell viability and function in the hyperosmolar environment of the renal medulla is a complex process that requires selective gene expression. We have identified a new member of the heat shock protein (hsp) 70 superfamily that is up-regulated in renal inner medullary collecting duct cells (mIMCD3 cells) during exposure to hyperosmotic NaCl stress. Known as osmotic stress protein 94, or Osp94, this 2935-base pair cDNA encodes an 838-amino acid protein that shows greatest homology to the recently discovered hsp110/SSE gene subfamily. Like the hsps, Osp94 has a putative amino-terminal ATP-binding domain and a putative carboxyl-terminal peptide-binding domain. The in vitro translated Osp94 product migrated as a 105-110-kDa protein on SDS-polyacrylamide gel electrophoresis. In mIMCD3 cells, Osp94 mRNA expression was greatly up-regulated by hyperosmotic NaCl or heat stress. In mouse kidney, Osp94 mRNA expression paralleled the known corticomedullary osmolality gradient showing highest expression in the inner medulla. Moreover, inner medullary Osp94 expression was increased during water restriction when osmolality is known to increase. Thus, Osp94 is a new member of the hsp110/SSE stress protein subfamily and likely acts as a molecular chaperone.
DOI:
10.1016/s0021-9258(19)75848-7
发表时间:
1987-01
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
T. Chappell;B. Konforti;S. Schmid;J. Rothman
通讯作者:
T. Chappell;B. Konforti;S. Schmid;J. Rothman
DOI:
--
发表时间:
1993
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Fathallah,DM;Cherif,D;Dellagi,K;Arnaout,MA
通讯作者:
Arnaout,MA
影响因子:
4.4
作者:
CHURCHILL, GA;WATERMAN, MS
通讯作者:
WATERMAN, MS