1G99

AN ANCIENT ENZYME: ACETATE KINASE FROM METHANOSARCINA THERMOPHILA

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1g99a1	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Actin-like ATPase domain	Acetokinase-like	Acetate kinase	(Methanosarcina thermophila ) [TaxId: 2210 ],	SCOPe (2.08)
B	d1g99b1	Alpha and beta proteins (a/b)	Ribonuclease H-like motif	Actin-like ATPase domain	Acetokinase-like	Acetate kinase	(Methanosarcina thermophila ) [TaxId: 2210 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Acetokinase-like	8032109	4000522	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Actin-like ATPases	8044488	3000092	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Actin-like ATPases	8044487	3000092	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Actin-like ATPases	8044488	3000092	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Actin-like ATPases	8044487	3000092	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	Acetate_kinase_C	e1g99A2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Acetate_kinase_C	ECOD (1.6)
A	Acetate_kinase_N	e1g99A1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Acetate_kinase_N	ECOD (1.6)
B	Acetate_kinase_C	e1g99B2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Acetate_kinase_C	ECOD (1.6)
B	Acetate_kinase_N	e1g99B1	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Ribonuclease H-like (From Topology)	T: Ribonuclease H-like	F: Acetate_kinase_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.420.40	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)
B	3.30.420.40	Alpha Beta	2-Layer Sandwich	Nucleotidyltransferase	domain 5	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00871	Acetokinase family (Acetate_kinase)	Acetokinase family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	ACETATE KINASE	kinase activity phosphotransferase activity, carboxyl group as acceptor transferase activity catalytic activity acetate kinase activity transferase activity, transferring phosphorus-containing groups cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding kinase activity phosphotransferase activity, carboxyl group as acceptor transferase activity catalytic activity acetate kinase activity transferase activity, transferring phosphorus-containing groups cation binding magnesium ion binding ion binding binding metal ion binding small molecule binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding	thioester biosynthetic process cellular biosynthetic process acetyl-CoA metabolic process nucleobase-containing compound metabolic process acyl-CoA metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process acyl-CoA biosynthetic process phosphate-containing compound metabolic process sulfur compound metabolic process small molecule metabolic process amide metabolic process thioester metabolic process phosphorus metabolic process thioester biosynthetic process cellular biosynthetic process acetyl-CoA metabolic process nucleobase-containing compound metabolic process acyl-CoA metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process acyl-CoA biosynthetic process phosphate-containing compound metabolic process sulfur compound metabolic process small molecule metabolic process amide metabolic process thioester metabolic process phosphorus metabolic process nucleoside phosphate metabolic process cellular metabolic process primary metabolic process amide biosynthetic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process acetyl-CoA biosynthetic process sulfur compound biosynthetic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process metabolic process cellular process organic acid metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR000890	Aliphatic acid kinase, short-chain	Family
A, B	IPR043129	ATPase, nucleotide binding domain	Homologous Superfamily
A, B	IPR004372	Acetate/propionate kinase	Family
A, B	IPR023865	Aliphatic acid kinase, short-chain, conserved site	Conserved Site

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	acetate kinase M-CSA #643	Acetate kinase is a key enzyme for many methanogenic bacteria as it is able to catalyse the interconversion of acetate and acetyl phosphate using the removal of a phosphate from ATP. Structural analysis of the enzyme from Methanosarcina thermophila, an Archaea, shows that it is a member of the sugar kinase superfamily which includes hexokinase, and geochemical studies suggest that it is most likely to be the urkinase- the ancestor of all of the members of the superfamily.	Defined by 5 residues: ASN:A-7ARG:A-91HIS:A-180ARG:A-241GLU:A-384 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif EC: 2.7.2.1 (PDB Primary Data) Search M-CSA Motif + EC 2.7.2.1

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.