CATH Classification

Domain Context

CATH Clusters

Superfamily Sulfate adenylyltransferase
Functional Family Sulfate adenylyltransferase

Enzyme Information

2.7.7.4
Sulfate adenylyltransferase.
based on mapping to UniProt Q12650
ATP + sulfate = diphosphate + adenylyl sulfate.
-!- The human phosphoadenosine-phosphosulfate synthase (PAPS) system is a bifunctional enzyme: ATP sulfurylase, which catalyzes the formation of adenosine 5'-phosphosulfate (APS) from ATP and inorganic sulfate and the second step is catalyzed by the APS kinase portion of 3'-phosphoadenosine 5'-phosphosulfate (PAPS) synthase, which involves the formation of PAPS from enzyme bound APS and ATP. -!- This is in contrast to what is found in bacteria, yeasts, fungi and plants, where the formation of PAPS is carried out by two individual polypeptides, EC 2.7.7.4 and EC 2.7.1.25.

UniProtKB Entries (1)

Q12650
MET3_PENCH
Penicillium chrysogenum
Sulfate adenylyltransferase

PDB Structure

PDB 1I2D
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal structure of ATP sulfurylase from Penicillium chrysogenum: insights into the allosteric regulation of sulfate assimilation.
MacRae, I.J., Segel, I.H., Fisher, A.J.
Biochemistry