d‐Amino acids in the brain: structure and function of pyridoxal phosphate‐dependent amino acid racemases

d‐Amino acids in the brain: structure and function of pyridoxal phosphate‐dependent amino acid racemases
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大脑中的 d-氨基酸:磷酸吡哆醛依赖性氨基酸消旋酶的结构和功能

DOI:
10.1111/j.1742-4658.2008.06516.x
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发表时间:
2008
期刊:
The FEBS Journal
影响因子:
--
通讯作者:
M. Goto
M. Goto
中科院分区:
--
文献类型:
--
作者:
T. Yoshimura;M. Goto

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d-丝氨酸是哺乳动物大脑中 N-甲基 d-天冬氨酸受体的共激动剂,其行为可能与精神分裂症、阿尔茨海默病和肌萎缩侧索硬化症等神经系统疾病有关。 d-丝氨酸由吡哆醛 5′-磷酸 (PLP) 依赖性丝氨酸消旋酶合成。在这篇小综述中,我们根据 PLP 依赖性氨基酸消旋酶的 3D 结构对其反应机制进行了详细讨论。我们将真核丝氨酸消旋酶与细菌丙氨酸消旋酶(PLP 依赖性氨基酸消旋酶中研究最充分的酶)进行了比较,从而提出了哺乳动物 d-丝氨酸合成的假定反应机制。
d‐Serine serves as a co‐agonist of the N‐methyl d‐aspartate receptor in mammalian brains, and its behavior is probably related to neurological disorders such as schizophrenia, Alzheimer’s disease and amyotrophic lateral sclerosis. d‐Serine is synthesized by a pyridoxal 5′‐phosphate (PLP)‐dependent serine racemase. In this minireview, we provide a detailed discussion on the reaction mechanism of the PLP‐dependent amino acid racemase on the basis of its 3D structure. We compared the eukaryotic serine racemase with bacterial alanine racemase, the best‐studied enzyme among the PLP‐dependent amino acid racemases, and thus suggested a putative reaction mechanism for mammalian d‐serine synthesis.
DOI: 10.1073/pnas.96.2.721
发表时间: 1999-01-19
影响因子: 11.1
作者:
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