Inhibition of GTP cyclohydrolase I by pterins.

Inhibition of GTP cyclohydrolase I by pterins.
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蝶呤对 GTP 环水解酶 I 的抑制作用。

DOI:
10.1016/0304-4165(88)90144-4
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发表时间:
1988
期刊:
Biochimica et biophysica acta
影响因子:
--
通讯作者:
Zhang,YX
Zhang,YX
中科院分区:
--
文献类型:
--
作者:
Shen,RS;Alam,A;Zhang,YX

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Pterins inhibit rat liver GTP cyclohydrolase I activity noncompetitively. Reduced pterins, such as 7,8-dihydro-D-neopterin, (6R,S)-5,6,7,8-tetrahydro-D-neopterin, 7,8-dihydro-L-biopterin, (6R)-5,6,7,8-tetrahydro-L-biopterin,L-sepiaterin, andDL-6-methyl-5,6,7,8-tetrahydropterin are approximately 12-times more potent as inhibitors than are oxidized pterins, such asD-neopterin,L-biopterin, and isoxanthopterin. They are also 12-times more potent than folates, such as folic acid, dihydrofolic acid, (±)-L-tetrahydrofolic acid, and aminopterin. TheKivalues for 7,8-dihydro-D-neopterin, 7,8-dihydro-L-biopterin, and (6R)-5,6,7,8-tetrahydro-L-biopterin are 12.7 μM, 14.4 μM, and 15.7 μM, respectively. These result suggest that mammalian GTP cyclohydrolase I may be regulated by its metabolic end products.
肾上腺髓质嗜铬细胞原代培养物中三磷酸鸟苷环水解酶和四氢生物蝶呤水平的调节以及辅因子在酪氨酸羟基化中的作用
DOI: 10.1111/j.1471-4159.1986.tb00637.x
发表时间: 1986
影响因子: 4.7
作者:
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DOI: 10.1016/s0021-9673(01)95830-3
发表时间: 1986
期刊: Journal of chromatography
影响因子: --
作者:
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DOI: 10.1016/0304-4165(86)90115-7
发表时间: 1986
期刊: Biochimica et biophysica acta
影响因子: --
作者:
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大鼠组织中三磷酸鸟苷环水解酶活性。
DOI: 10.1042/bj2170059
发表时间: 1984
期刊: The Biochemical journal
影响因子: --
作者:
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通讯作者: J. Farriaux
在二氢叶酸-琼脂糖亲和柱上纯化三磷酸鸟苷环水解酶 I 和二氢叶酸还原酶。
DOI: 10.1016/0003-2697(79)90120-9
发表时间: 1979
影响因子: 2.9
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通讯作者: R. Then