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7YQ0

Crystal structure of adenosine 5'-phosphosulfate kinase from Archaeoglobus fulgidus in complex with ADP

Summary for 7YQ0
Entry DOI10.2210/pdb7yq0/pdb
DescriptorAdenylyl-sulfate kinase, ADENOSINE-5'-DIPHOSPHATE, GLYCEROL, ... (5 entities in total)
Functional Keywordsaps kinase, archaea, transferase
Biological sourceArchaeoglobus fulgidus
Total number of polymer chains2
Total formula weight41800.57
Authors
Kawakami, T.,Teramoto, T.,Kakuta, Y. (deposition date: 2022-08-05, release date: 2023-01-18, Last modification date: 2023-11-29)
Primary citationKawakami, T.,Teramoto, T.,Kakuta, Y.
Crystal structure of adenosine 5'-phosphosulfate kinase isolated from Archaeoglobus fulgidus.
Biochem.Biophys.Res.Commun., 643:105-110, 2022
Cited by
PubMed Abstract: The 3'-phosphoadenosine-5'-phosphosulfate (PAPS) molecule is essential during enzyme-catalyzed sulfation reactions as a sulfate donor and is an intermediate in the reduction of sulfate to sulfite in the sulfur assimilation pathway. PAPS is produced through a two-step reaction involving ATP sulfurylase and adenosine 5'-phosphosulfate (APS) kinase enzymes/domains. However, archaeal APS kinases have not yet been characterized and their mechanism of action remains unclear. Here, we first structurally characterized APS kinase from the hyperthermophilic archaeon Archaeoglobus fulgidus, (AfAPSK). We demonstrated the PAPS production activity of AfAPSK at the optimal growth temperature (83 °C). Furthermore, we determined the two crystal structures of AfAPSK: ADP complex and ATP analog adenylyl-imidodiphosphate (AMP-PNP)/Mg/APS complex. Structural and complementary mutational analyses revealed the catalytic and substrate recognition mechanisms of AfAPSK. This study also hints at the molecular basis behind the thermal stability of AfAPSK.
PubMed: 36592583
DOI: 10.1016/j.bbrc.2022.12.081
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (1.58 Å)
Structure validation

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