Interaction between the N-terminal Domain of Gastric H,K-ATPase and the Spectrin Binding Domain of Ankyrin III*
Interaction between the N-terminal Domain of Gastric H,K-ATPase and the Spectrin Binding Domain of Ankyrin III*
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胃 H,K-ATP 酶 N 末端结构域与锚蛋白 III 血影蛋白结合结构域之间的相互作用*
DOI:
--
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发表时间:
2001
影响因子:
4.8
通讯作者:
Annick Thomas
中科院分区:
文献类型:
--
作者:
F. Festy;J. Robert;R. Brasseur;Annick Thomas
We screened a cDNA bank of rabbit gastric fundic mucosa by two-hybrid assays looking for binding partners of the N-terminal domain of the rabbit gastric H,K-ATPase. We extracted five clones sharing more than 90% sequence identity. The longest clone codes for a protein sharing a high identity (96 and 96.8%, respectively) with a fragment of the membrane domain, from Arg-835 to Ser-873, plus the major part of the “spectrin binding domain” going from Glu-874 to Leu-1455 of human and mouse ankyrin III. We conclude that the membrane and spectrin binding domains of the rabbit ankyrin III are candidates for the binding partner of the N-terminal domain of the rabbit gastric H,K-ATPase. To validate the ankyrin-ATPase interaction and to test its specificity, we produced both domains in yeast and bacteria, coimmunoprecipitated them with an anti-ATPase antibody, and copurified them by affinity chromatography. The sequence of rabbit ankyrin III was not known, and this is the first report demonstrating that the ankyrin III and the H,K-ATPase interact with no intermediate. The interaction involves the N-terminal domain of the ATPase on one hand and the spectrin binding domain of the ankyrin on the other.
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影响因子:
56.9
作者:
RODRIGUEZBOULAN, E;NELSON, WJ
通讯作者:
NELSON, WJ
DOI:
10.1152/ajpcell.1993.264.1.c63
发表时间:
1993
期刊:
The American journal of physiology
影响因子:
--
作者:
Smith,PR;Bradford,AL;Joe,EH;Angelides,KJ;Benos,DJ;Saccomani,G
通讯作者:
Saccomani,G
DOI:
10.1016/s0021-9258(19)50333-7
发表时间:
1992-05
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Vann Bennett
通讯作者:
Vann Bennett
影响因子:
56.9
作者:
LUNA, EJ;HITT, AL
通讯作者:
HITT, AL