Glucose-6-phosphate modification of bovine renal Na,K-ATPase: a model for changes occurring in the human renal medulla in diabetes.

Glucose-6-phosphate modification of bovine renal Na,K-ATPase: a model for changes occurring in the human renal medulla in diabetes.
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牛肾Na,K-ATP酶的葡萄糖-6-磷酸修饰:糖尿病中人肾髓质发生变化的模型。

DOI:
10.1016/0006-291x(85)90219-0
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发表时间:
1985
影响因子:
3.1
通讯作者:
Spector,A
Spector,A
中科院分区:
生物学4区
文献类型:
--
作者:
Garner,MH;Spector,A

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测定了经葡萄糖-6-磷酸修饰的K+构象的肾Na,K-ATP酶的ATP水解动力学。ATP水解动力学从对照酶制剂的负动力学协同性转变为修饰酶制剂的底物抑制动力学。NaBH_4还原后,该效应可逆且稳定。每摩尔Na,K-ATP酶掺入约4摩尔葡萄糖-6-磷酸(基于150,000道尔顿的MW)。从几个成年糖尿病患者中分离的肾脏Na,K-ATP酶也观察到类似的底物抑制动力学。
The kinetics of hydrolysis of ATP were determined for the renal Na,K-ATPase, in the K+conformation, modified with glucose-6-phosphate. There was a shift in the ATP hydrolysis kinetics from negative kinetic co-operativity for the control enzyme preparations to substrate inhibition kinetics for the modified enzyme preparations. The effect was reversible and stabilized after NaBH4reduction. Approximately 4 moles of glucose-6-phosphate were incorporated per mole of Na,K-ATPase (based on MW of 150,000 daltons). Similar substrate inhibition kinetics were observed for the renal Na,K-ATPase isolated from several human subjects with mature onset diabetes.
H2O2 修饰 (Na,K)-ATPase 后动力学协同性发生变化。
DOI: 10.1016/s0021-9258(17)42851-1
发表时间: 1984
期刊: The Journal of biological chemistry
影响因子: --
作者:
M. Garner;W. Garner;A. Spector
通讯作者: A. Spector
DOI: 10.1016/0006-291x(79)91820-5
发表时间: 1979
影响因子: 3.1
作者:
P. Marshall;L. Hokin
通讯作者: L. Hokin
DOI: 10.1016/0005-2736(82)90348-0
发表时间: 1982
期刊: Biochimica et biophysica acta
影响因子: --
作者:
JENS CHR. Skou
通讯作者: JENS CHR. Skou
曙红,一种与 (Na K )-ATP 酶结合的 ATP 荧光探针。
DOI: 10.1016/0005-2736(81)90251-0
发表时间: 1981
期刊: Biochimica et biophysica acta
影响因子: --
作者:
Jens Christian Skou;M. Esmann
通讯作者: M. Esmann
DOI: 10.1016/0003-9861(82)90498-2
发表时间: 1982
影响因子: 3.9
作者:
Jenkins,WT
通讯作者: Jenkins,WT