<Ul> <Li> Cofactor of: xanthine oxidase, DMSO reductase, sulfite oxidase, nitrate reductase, ethylbenzene dehydrogenase, glyceraldehyde - 3 - phosphate ferredoxin oxidoreductase, respiratory arsenate reductase, carbon monoxide dehydrogenase . </Li> <Li> Prosthetic group of: formate dehydrogenase, purine hydroxylase, thiosulfate reductase . </Li> </Ul> <Li> Cofactor of: xanthine oxidase, DMSO reductase, sulfite oxidase, nitrate reductase, ethylbenzene dehydrogenase, glyceraldehyde - 3 - phosphate ferredoxin oxidoreductase, respiratory arsenate reductase, carbon monoxide dehydrogenase . </Li> <Li> Prosthetic group of: formate dehydrogenase, purine hydroxylase, thiosulfate reductase . </Li>

Pterin acts as a prosthetic group in which enzyme
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