Adenylyl-sulfate kinase

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adenylylsulfate kinase
Identifiers
EC number2.7.1.25
CAS number9012-38-8
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
APS_kinase
PDB 1m8p EBI.jpg
crystal structure of p. chrysogenum atp sulfurylase in the t-state
Identifiers
SymbolAPS_kinase
PfamPF01583
Pfam clanCL0023
InterProIPR002891
SCOPe1d6j / SUPFAM
CDDcd02027

In enzymology, an adenylyl-sulfate kinase (EC 2.7.1.25) is an enzyme that catalyzes the chemical reaction

ATP + adenylyl sulfate ADP + 3'-phosphoadenylyl sulfate

Thus, the two substrates of this enzyme are ATP and adenylyl sulfate, whereas its two products are ADP and 3'-phosphoadenylyl sulfate.

This enzyme belongs to the family of transferases, specifically those transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:adenylyl-sulfate 3'-phosphotransferase. Other names in common use include adenylylsulfate kinase (phosphorylating), 5'-phosphoadenosine sulfate kinase, adenosine 5'-phosphosulfate kinase, adenosine phosphosulfate kinase, adenosine phosphosulfokinase, adenosine-5'-phosphosulfate-3'-phosphokinase, and APS kinase. This enzyme participates in 3 metabolic pathways: purine metabolism, selenoamino acid metabolism, and sulfur metabolism.

This enzyme contains an ATP binding P-loop motif.[1]

Structural studies[edit]

As of late 2007, 11 structures have been solved for this class of enzymes, with PDB accession codes 1D6J, 1M7G, 1M7H, 1X6V, 1XJQ, 1XNJ, 2AX4, 2GKS, 2OFW, 2OFX, and 2PEY.

References[edit]

  1. ^ MacRae IJ, Rose AB, Segel IH (October 1998). "Adenosine 5'-phosphosulfate kinase from Penicillium chrysogenum. site-directed mutagenesis at putative phosphoryl-accepting and ATP P-loop residues". J. Biol. Chem. 273 (44): 28583–9. doi:10.1074/jbc.273.44.28583. PMID 9786849.

Further reading[edit]

  • Bandurski RS, Wilson LG, Squires CL (1956). "The mechanism of "active sulfate" formation". J. Am. Chem. Soc. 78 (24): 6408–6409. doi:10.1021/ja01605a028.
  • ROBBINS PW, LIPMANN F (1957). "Isolation and identification of active sulfate". J. Biol. Chem. 229 (2): 837–51. PMID 13502346.
  • Venkatachalam KV, Akita H, Strott CA (1998). "Molecular cloning, expression, and characterization of human bifunctional 3'-phosphoadenosine 5'-phosphosulfate synthase and its functional domains". J. Biol. Chem. 273 (30): 19311–20. doi:10.1074/jbc.273.30.19311. PMID 9668121.
This article incorporates text from the public domain Pfam and InterPro: IPR002891