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cyclohydrolase activity

Catalysis of the hydrolysis of any non-peptide carbon-nitrogen bond in a cyclic amidine, a compound of the form R-C(=NH)-NH2, in a reaction that… 
National Institutes of Health

Papers overview

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1993
1993
Long-term treatment of PC12 pheochromocytoma with dibutyryl cyclic AMP increases biopterin content in the cells but decreases that in the medium.
Pheochromocytoma PC12 is known to be a nerve growth factor (NGF)-responsive cell line: upon the addition of NGF, cells are… 
1992
1992
Effects of Electroconvulsive Shock on Tetrahydrobiopterin and GTP‐Cyclohydrolase Activity in the Brain and Adrenal Gland of the Rat
Abstract: The effects of a single and repeated electroconvulsive shock (ECS) (300 mA, 0.2 s) on tetrahydrobiopterin (BH4) levels… 
1991
1991
The effects of electroconvulsive shock on catecholamine function in the locus ceruleus and hippocampus.
Repeated electroconvulsive shock (ECS) treatment (once per day for 7 days) produced a significant increase in tyrosine… 
1990
1990
Simultaneous determination of GTP cyclohydrolase activity and biopterin content in pheochromocytoma PC12h cells.
A method to measure the GTP cyclohydrolase and biopterin (BP) content at the same time in the sonicate of pheochromocytoma PC12h… 
1986
1986
Endocrine-dependent regulation of tetrahydrobiopterin levels and guanosine triphosphate cyclohydrolase activity
1984
1984
Guanosine triphosphate cyclohydrolase activity in rat tissues.
The GTP cyclohydrolase activity of rat tissues has been studied by means of the measurement of formic acid release and neopterin… 
1983
1983
Hormonal regulation of guanosine triphosphate cyclohydrolase activity and biopterin levels in the rat adrenal cortex.
The regulation of GTP-cyclohydrolase (GTP-CH) activity and tetrahydrobiopterin (BH4) levels in the adrenal cortex were studied in… 
1982
1982
[Effect of iron, actinomycin D and cycloheximide on the GTP-cyclohydrolase synthesis in flavinogenic yeasts].
The effect of Fe on the GTP-cyclohydrolase activity of the yeasts Pichia guilliermondii ATCC 9058 and Torulopsis candida BKM 13… 
1978
1978
N10-Formyltetrahydrofolate is the formyl donor for glycinamide ribotide transformylase in Escherichia coli.
Glycinamide ribotide transformylase from Escherichia coli was obtained free of N5,N10-methenyltetrahydrofolate cyclohydrolase… 
1977
1977
Cytochemical demonstration of 5-formyl tetrahydrofolate cyclodehydrase and 5,10-methenyl tetrahydrofolate cyclohydrolase activity.
The enzyme 5-formyl tetrahydrofolate cyclodehydrase plays an important role in the conversion of 5-formyl tetrahydrofolate to 5… 
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