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Ligand tetrahydrosarcinapterin Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
Basic Ligand Information Molecular Structure
C3 5 H5 2 N7 O1 9 P
tetrahydrosarcinapterin
DOMRFGVDYQUXCH-GPQOPNTJSA-N
5,6,7,8-tetrahydrosarcinapterin, H4SPt
Show all BRENDA pathways known for tetrahydrosarcinapterin
Roles as Enzyme Ligand
In Vivo Substrate in Enzyme-catalyzed Reactions (1 result)
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a [methyl-Co(III) corrinoid Fe-S protein] + tetrahydrosarcinapterin = a [Co(I) corrinoid Fe-S protein] + 5-methyltetrahydrosarcinapterin
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In Vivo Product in Enzyme-catalyzed Reactions (3 results)
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5-methyl-5,6,7,8-tetrahydrosarcinapterin + coenzyme M = 5,6,7,8-tetrahydrosarcinapterin + methyl-coenzyme M
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ATP + tetrahydromethanopterin + L-glutamate = ADP + phosphate + 5,6,7,8-tetrahydrosarcinapterin
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GTP + tetrahydromethanopterin + L-glutamate = GDP + phosphate + 5,6,7,8-tetrahydrosarcinapterin
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Substrate in Enzyme-catalyzed Reactions (3 results)
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tetrahydrosarcinapterin + acetyl-SCoA + H2O = methyltetrahydrosarcinapterin + CO2 + CoASH
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a [methyl-Co(III) corrinoid Fe-S protein] + tetrahydrosarcinapterin = a [Co(I) corrinoid Fe-S protein] + 5-methyltetrahydrosarcinapterin
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CH3-CO-S-CoA + tetrahydrosarcinapterin + H2O = CH3-tetrahydrosarcinapterin + CO2 + H+ + electron
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Product in Enzyme-catalyzed Reactions (6 results)
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CH3-H4SPt + cob(I)amide-protein + H+ = H4SPt + CH3-cob(III)amide-protein
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5-methyl-5,6,7,8-tetrahydrosarcinapterin + coenzyme M = 5,6,7,8-tetrahydrosarcinapterin + methyl-coenzyme M
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CH3-tetrahydrosarcinapterin + CO + HS-CoA = CH3-CO-S-CoA + tetrahydrosarcinapterin
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H2 + CO2 + CH3-H4SPt + CoASH = acetyl-CoA + H4SPt + H2O
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ATP + tetrahydromethanopterin + L-glutamate = ADP + phosphate + 5,6,7,8-tetrahydrosarcinapterin
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GTP + tetrahydromethanopterin + L-glutamate = GDP + phosphate + 5,6,7,8-tetrahydrosarcinapterin
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Enzyme Kinetic Parameters
kcat Value (Turnover Number) (1 result)
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KM Value (1 result)
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References & Links Literature References (5)
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Substrate and accessory protein requirements and thermodynamics of acetyl-CoA synthesis and cleavage in Methanosarcina barkeri
1995
Grahame, D.A.; de Moll, E.
Biochemistry
34
4617-4624
Substrate and cofactor reactivity of a carbon monoxide dehydrogenase-corrinoid enzyme complex: stepwise reduction of iron-sulfur and corrinoid centers, the corrinoid Co2+/1+ redox midpoint potential, and overall synthesis of acetyl-CoA
1993
Grahame, D.A.
Biochemistry
32
10786-10793
Catalysis of acetyl-CoA cleavage and tetrahydrosarcinapterin methylation by a carbon monoxide dehydrogenase-corrinoid enzyme complex
1991
Grahame, D.A.
J. Biol. Chem.
266
22227-22233
Mechanism of transfer of the methyl group from (6S)-methyltetrahydrofolate to the corrinoid/iron-sulfur protein catalyzed by the methyltransferase from Clostridium thermoaceticum: a key step in the Wood-Ljungdahl pathway of acetyl-CoA synthesis
1999
Seravalli, J.; Zhao, S.; Ragsdale, S.W.
Biochemistry
38
5728-5735
Partial reactions catalyzed by protein components of the acetyl-CoA decarbonylase synthase enzyme complex from Methanosarcina barkeri
1996
Grahame, D.; DeMoll, E.
J. Biol. Chem.
271
8352-8358
Links to other databases for tetrahydrosarcinapterin