Diversity of glutamate dehydrogenase in human brain

被引:17
作者
Burbaeva, GS [1 ]
Turishcheva, MS [1 ]
Vorobyeva, EA [1 ]
Savushkina, OK [1 ]
Tereshkina, EB [1 ]
Boksha, IS [1 ]
机构
[1] RAMS, Mental Hlth Res Ctr, Neurochem Lab, Moscow 113152, Russia
关键词
antiglutamate dehydrogenase polyclonal antibodies; glutamate dehydrogenase isoenzymes; human brain; western immunoblotting;
D O I
10.1016/S0278-5846(01)00273-1
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Three forms of glutamate dehydrogenase (GDH, EC 1.4.1.3) are purified from human brain tissue. Two of them, named GDH I (consisting of 58 +/-1-kDa subunit) and GDH II (consisting of 56 +/- 1-kDa subunit), are readily solubilized and the third one, GDH III (consisting of 56 +/- 1-kDa subunit), is a membrane-associated (particulate bound) isoform. Kinetic constants were determined for GDH III. These GDH forms were found to differ in hydrophobicity as indicated by different affinity to Phenyl-Sepharose. All three GDH forms showed microheterogeneity on two-dimensional (2-D) gel electrophoresis. Specific polyclonal antibodies, which enable to determine the levels of immunoreactivities of all the GDH forms in human brain extracts by enzyme-chemiluminescent amplified (ECL)-Western immunoblotting, were obtained. (C) 2001 Elsevier Science Inc. All rights reserved.
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页码:427 / 435
页数:9
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