Annotations: 2GKS

Crystal Structure of the Bi-functional ATP Sulfurylase-APS Kinase from Aquifex aeolicus, a Chemolithotrophic Thermophile

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	APS kinase-like	8018718	4003930	SCOP2 (2022-06-29)
A	SCOP2 Family	ATP sulfurylase-like	8018722	4003381	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	P-loop nucleotide/nucleoside kinase-like	8018719	3002021	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Nucleotidylyl transferase	8018723	3001541	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	PUA domain-like	8018725	3001015	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Nucleotidylyl transferase	8018723	3001541	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	P-loop nucleotide/nucleoside kinase-like	8018719	3002021	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	PUA domain-like	8018725	3001015	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Phospholip_A2_1	e2gksA2	A: a/b three-layered sandwiches	X: Profilin-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Phospholip_A2_1	ECOD (v294.1)
A	Anticodon_3	e2gksA4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: beta-helix of amnionless (AMN) extracellular domain	T: beta-helix of amnionless (AMN) extracellular domain	F: Anticodon_3	ECOD (v294.1)
B	HTHP	e2gksB2	A: a/b three-layered sandwiches	X: HTH	H: Nudix	T: Nudix	F: HTHP	ECOD (v294.1)
B	Anticodon_3	e2gksB4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: beta-helix of amnionless (AMN) extracellular domain	T: beta-helix of amnionless (AMN) extracellular domain	F: Anticodon_3	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.400.10	Alpha Beta	Roll	Sulfate adenylyltransferase	Sulfate adenylyltransferase	CATH (4.3.0)
A	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	3.10.400.10	Alpha Beta	Roll	Sulfate adenylyltransferase	Sulfate adenylyltransferase	CATH (4.3.0)
B	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01747	ATP-sulfurylase (ATP-sulfurylase)	ATP-sulfurylase	This domain is the catalytic domain of ATP-sulfurylase or sulfate adenylyltransferase EC:2.7.7.4 some of which are part of a bifunctional polypeptide chain associated with adenosyl phosphosulphate (APS) kinase Pfam:PF01583. Both enzymes are required ...	This domain is the catalytic domain of ATP-sulfurylase or sulfate adenylyltransferase EC:2.7.7.4 some of which are part of a bifunctional polypeptide chain associated with adenosyl phosphosulphate (APS) kinase Pfam:PF01583. Both enzymes are required for PAPS (phosphoadenosine-phosphosulfate) synthesis from inorganic sulphate [2]. ATP sulfurylase catalyses the synthesis of adenosine-phosphosulfate APS from ATP and inorganic sulphate [1].	Domain
A, B	PF01583	Adenylylsulphate kinase (APS_kinase)	Adenylylsulphate kinase	Enzyme that catalyses the phosphorylation of adenylylsulphate to 3'-phosphoadenylylsulfate. This domain contains an ATP binding P-loop motif.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Bifunctional SAT/APS kinase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding adenylyltransferase activity transferase activity sulfate adenylyltransferase (ATP) activity sulfate adenylyltransferase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups kinase activity adenylylsulfate kinase activity phosphotransferase activity, alcohol group as acceptor	sulfur compound biosynthetic process biosynthetic process sulfur compound metabolic process metabolic process cellular process hydrogen sulfide biosynthetic process hydrogen sulfide metabolic process sulfate assimilation sulfate assimilation, phosphoadenylyl sulfate reduction by phosphoadenylyl-sulfate reductase (thioredoxin)	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR015947	PUA-like superfamily	Homologous Superfamily
A, B	IPR025980	ATP-sulfurylase PUA-like domain	Domain
A, B	IPR014729	Rossmann-like alpha/beta/alpha sandwich fold	Homologous Superfamily
A, B	IPR002891	APS kinase	Family
A, B	IPR059117	APS kinase domain	Domain
A, B	IPR002650	Sulphate adenylyltransferase	Family
A, B	IPR024951	Sulphate adenylyltransferase catalytic domain	Domain
A, B	IPR020792	Sulphate adenylyltransferase, prokaryotic-type	Family
A, B	IPR050512	Sulfate Adenylyltransferase/APS Kinase	Family
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.