3.5.4.25: GTP cyclohydrolase II
This is an abbreviated version!
For detailed information about GTP cyclohydrolase II, go to the full flat file.
Word Map on EC 3.5.4.25
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3.5.4.25
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riboflavin
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anti-hcv
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lumazine
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guilliermondii
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famata
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gtp-cyclohydrolase
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2,5-diamino-6-ribosylamino-43h-pyrimidinone
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flavinogenic
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6,7-dimethyl-8-ribityllumazine
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pharmacology
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synthesis
- 3.5.4.25
- riboflavin
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anti-hcv
- lumazine
- guilliermondii
- famata
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gtp-cyclohydrolase
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2,5-diamino-6-ribosylamino-43h-pyrimidinone
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flavinogenic
- 6,7-dimethyl-8-ribityllumazine
- pharmacology
- synthesis
Reaction
Synonyms
3,4-dihydroxy-2-butanone 4-phosphate synthase, GCH II, GCH II/III, GCH-II, gch2, GCHII, GTP 7,8-8,9-dihydrolase (diphosphate-forming), GTP cyclohydrolase 2, GTP cyclohydrolase II, GTP cyclohydrolase-II, GTP-8-formylhydrolase, GTPCH II, GTPCH-II, guanosine triphosphate cyclohydrolase II, guanosine triphosphate cyclohydrolase II/3,4-dihydroxy-2-butanone-4-phosphate synthase, guanosine-5'-triphosphate cyclohydrolase-II, More, NbRibA, ribA, ribA2, RIBIV, ToxB
ECTree
Advanced search results
KM Value
KM Value on EC 3.5.4.25 - GTP cyclohydrolase II
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0.031
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wild type enzyme, at pH 8.5 and 30°C
0.079
2-amino-5-formylamino-6-ribosylamino-4(3H)-pyrimidinone 5'-triphosphate
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mutant enzyme Y210C/A290T/Q293R/A296T/K322R/M361I, at pH 8.5 and 30°C
0.122
2-amino-5-formylamino-6-ribosylamino-4(3H)-pyrimidinone 5'-triphosphate
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mutant enzyme Y210C/A290T/Q293R/A296T/K322R/F339Y/M361I, at pH 8.5 and 30°C
0.008
M120Y variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.008
GTP
variant M120Y, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.0089
GTP
M120K variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.011
GTP
M120Q variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.015
GTP
M120I variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.019
GTP
M120F variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.019
GTP
variant M120F, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.024
GTP
wild type, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.033
GTP
M120S variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.044
GTP
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mutant enzyme Y210C/A290T/Q293R/A296T/K322R/F339Y/M361I, at pH 8.5 and 30°C
0.048
GTP
variant Y123M, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.049
GTP
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mutant enzyme Y210C/A290T/Q293R/A296T/K322R/M361I, at pH 8.5 and 30°C
0.05
GTP
M120H variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.056
GTP
wild type, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.059
GTP
M120A variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.063
GTP
wild type, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.067
GTP
M120C variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.067
GTP
M120N variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.085
GTP
variant D127A, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.092
GTP
variant R123M, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.1267
GTP
full-length bifunctional enzyme ribA2, at pH 8.0 and 37°C
0.15
GTP
M120T variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.1505
GTP
GCHII-domain of enzyme ribA2, at pH 8.0 and 37°C
0.19
GTP
M120G variant, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
0.23
GTP
variant G209D, 1 mM substrate, 0.1 M Tris-HCl, pH 8, 5 mM MgCl2, 0.5 mM dithiothreitol
additional information
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kinetics, cooperative reaction with a Hill coefficient of 1.3
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additional information
additional information
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pre-steady state kinetics, single turnover experiments, stopped-flow experiments
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