The unusual behavior of the inhibitor S(+)(1-amino-2-phenylethyl)phosphonic acid towards carboxypeptidase A.

The unusual behavior of the inhibitor S(+)(1-amino-2-phenylethyl)phosphonic acid towards carboxypeptidase A.
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抑制剂 S( )(1-氨基-2-苯乙基)膦酸对羧肽酶 A 的异常行为。

DOI:
10.1016/0162-0134(90)80056-4
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发表时间:
1990
影响因子:
3.9
通讯作者:
G. Z. Siatecki
G. Z. Siatecki
中科院分区:
生物学2区
文献类型:
--
作者:
W. Bal;I. Bertini;H. Kozłowski;R. Monnanni;A. Scozzafava;G. Z. Siatecki

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分子(1-氨基-2-苯乙基)膦酸被证明抑制羧肽酶a的酶活性。通过对钴(II)取代酶的光谱研究,我们提出它以1:1的比例直接与酶在金属上结合,可能是通过像磷酸盐本身一样的磷酸基团。芳基被认为位于所谓的s1疏水口袋中。这是酶抑制剂中独特的行为。S ' 1位点在二元加合物中仍然存在,因此,像l -苯丙氨酸这样的分子进入该位点,就可以得到三元配合物。
The molecule (1-Amino-2-phenylethyl)phosphonic acid is shown to inhibit the enzymatic activity of carboxypeptidase A. Through the spectroscopic investigation of the cobalt(II) substituted enzyme we propose that it binds the enzyme in the 1:1 ratio directly at the metal, probably through the phosphate group like phosphate itself. The aromatic group is proposed to sit in the so-called S1hydrophobic pocket. This is a unique behavior among the inhibitors of the enzyme. The S′1site is still available in the binary adduct so that a ternary complex can be obtained with molecules like L-Phenylalanine, which enter that site.
D-苯丙氨酸和 D-酪氨酸与羧肽酶 A 的结合。
DOI: --
发表时间: 1989
期刊: The Journal of biological chemistry
影响因子: --
作者:
Christianson,DW;Mangani,S;Shoham,G;Lipscomb,WN
通讯作者: Lipscomb,WN