what is CPH4 explain in detail please.
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6-carboxytetrahydropterin synthase (EC4.1.2.50, CPH4 synthase, queD (gene), ToyB , ykvK (gene)) is an enzyme with systematic name 7,8-dihydroneopterin 3'-triphosphate acetaldehyde-lyase (6-carboxy-5,6,7,8-tetrahydropterin and triphosphate-forming).[1][2]This enzyme catalyses the following chemical reaction.
6-carboxytetrahydropterin synthase
6-Carboxy-5,6,7,8-tetrahydropterin synthase hexamer, E.Coli
IdentifiersEC number4.1.2.50DatabasesIntEnzIntEnz viewBRENDABRENDA entryExPASyNiceZyme viewKEGGKEGG entryMetaCycmetabolic pathwayPRIAMprofilePDB structuresRCSB PDB PDBePDBsumSearchPMCarticlesPubMedarticlesNCBIproteins7,8-dihydroneopterin 3'-triphosphate + H2O ⇌ 6-carboxy-5,6,7,8-tetrahydropterin + acetaldehyde + triphosphate
This enzyme binds Zn2+. It is isolated from the bacteria Bacillus subtilis and Escherichia coli. The reaction is part of the biosynthesis pathway of queuosine. The enzyme from Escherichia coli can also convert 6-pyruvoyl-5,6,7,8-tetrahydropterin and sepiapterin to 6-carboxy-5,6,7,8-tetrahydropterin.[2]
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6-carboxytetrahydropterin synthase
6-Carboxy-5,6,7,8-tetrahydropterin synthase hexamer, E.Coli
IdentifiersEC number4.1.2.50DatabasesIntEnzIntEnz viewBRENDABRENDA entryExPASyNiceZyme viewKEGGKEGG entryMetaCycmetabolic pathwayPRIAMprofilePDB structuresRCSB PDB PDBePDBsumSearchPMCarticlesPubMedarticlesNCBIproteins7,8-dihydroneopterin 3'-triphosphate + H2O ⇌ 6-carboxy-5,6,7,8-tetrahydropterin + acetaldehyde + triphosphate
This enzyme binds Zn2+. It is isolated from the bacteria Bacillus subtilis and Escherichia coli. The reaction is part of the biosynthesis pathway of queuosine. The enzyme from Escherichia coli can also convert 6-pyruvoyl-5,6,7,8-tetrahydropterin and sepiapterin to 6-carboxy-5,6,7,8-tetrahydropterin.[2]
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