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Information on EC 2.7.1.25 - adenylyl-sulfate kinase

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IUBMB Comments
The human phosphoadenosine-phosphosulfate synthase (PAPSS) system is a bifunctional enzyme (fusion product of two catalytic activities). In a first step, sulfate adenylyltransferase catalyses the formation of adenosine 5'-phosphosulfate (APS) from ATP and inorganic sulfate. The second step is catalysed by the adenylylsulfate kinase portion of 3'-phosphoadenosine 5'-phosphosulfate (PAPS) synthase, which involves the formation of PAPS from enzyme-bound APS and ATP. In contrast, in bacteria, yeast, fungi and plants, the formation of PAPS is carried out by two individual polypeptides, sulfate adenylyltransferase (EC 2.7.7.4) and adenylyl-sulfate kinase (EC 2.7.1.25).
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The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Synonyms
aps kinase, papss1, aps-kinase, paps synthetase, papss, paps synthase, adenosine-5'-phosphosulfate kinase, adenosine 5'-phosphosulfate kinase, adenylylsulfate kinase, atp sulfurylase-aps kinase, more
REACTION
REACTION DIAGRAM
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ORGANISM
UNIPROT
LITERATURE
ATP + adenylyl sulfate = ADP + 3'-phosphoadenylyl sulfate
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