Annotations: 1AK2

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1ak2a1	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Nucleotide and nucleoside kinases	Adenylate kinase	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
A	d1ak2a2	Small proteins	Rubredoxin-like	Microbial and mitochondrial ADK, insert 'zinc finger' domain	Microbial and mitochondrial ADK, insert 'zinc finger' domain	Microbial and mitochondrial ADK, insert 'zinc finger' domain	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Adenylate kinase-like	8058339	4004025	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	P-loop nucleotide/nucleoside kinase-like	8058340	3002021	SCOP2 (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	Cytidylate_kin_2	e1ak2A2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Cytidylate_kin_2	ECOD (1.6)
A	ADK_lid	e1ak2A1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: ADK_lid	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	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	PF00406	Adenylate kinase (ADK)	Adenylate kinase	-	Domain
A	PF05191	Adenylate kinase, active site lid (ADK_lid)	Adenylate kinase, active site lid	Comparisons of adenylate kinases have revealed a particular divergence in the active site lid. In some organisms, particularly the Gram-positive bacteria, residues in the lid domain have been mutated to cysteines and these cysteine residues are resp ...	Comparisons of adenylate kinases have revealed a particular divergence in the active site lid. In some organisms, particularly the Gram-positive bacteria, residues in the lid domain have been mutated to cysteines and these cysteine residues are responsible for the binding of a zinc ion. The bound zinc ion in the lid domain, is clearly structurally homologous to Zinc-finger domains. However, it is unclear whether the adenylate kinase lid is a novel zinc-finger DNA/RNA binding domain, or that the lid bound zinc serves a purely structural function [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	ADENYLATE KINASE ISOENZYME-2	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding nucleobase-containing compound kinase activity nucleoside monophosphate kinase activity kinase activity adenylate kinase activity transferase activity catalytic activity phosphotransferase activity, phosphate group as acceptor transferase activity, transferring phosphorus-containing groups	ribose phosphate metabolic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside diphosphate biosynthetic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process nucleoside diphosphate biosynthetic process purine nucleotide metabolic process organic substance metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process phosphate-containing compound metabolic process ribose phosphate metabolic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside diphosphate biosynthetic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process nucleoside diphosphate biosynthetic process purine nucleotide metabolic process organic substance metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process phosphate-containing compound metabolic process organic substance biosynthetic process ribonucleoside diphosphate metabolic process ADP biosynthetic process small molecule metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process organonitrogen compound metabolic process cellular metabolic process purine nucleoside diphosphate metabolic process primary metabolic process purine nucleoside diphosphate biosynthetic process nucleotide metabolic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process organic cyclic compound metabolic process ADP metabolic process nucleoside diphosphate metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process organic cyclic compound biosynthetic process nucleoside phosphate biosynthetic process purine ribonucleoside diphosphate metabolic process metabolic process cellular process purine ribonucleotide metabolic process purine nucleotide biosynthetic process ribonucleoside diphosphate biosynthetic process ATP metabolic process purine ribonucleoside triphosphate metabolic process ribonucleoside triphosphate metabolic process purine nucleoside triphosphate metabolic process nucleoside triphosphate metabolic process AMP metabolic process purine ribonucleoside monophosphate metabolic process ribonucleoside monophosphate metabolic process purine nucleoside monophosphate metabolic process nucleoside monophosphate metabolic process phosphorylation	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle sperm midpiece cilium 9+2 motile cilium motile cilium plasma membrane bounded cell projection cell projection membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle sperm midpiece cilium 9+2 motile cilium motile cilium plasma membrane bounded cell projection cell projection sperm mitochondrial sheath sperm flagellum mitochondrial membrane organelle inner membrane membrane mitochondrial inner membrane organelle envelope mitochondrial envelope organelle membrane mitochondrial intermembrane space membrane-enclosed lumen intracellular organelle lumen organelle envelope lumen organelle lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR006259	Adenylate kinase subfamily	Family
A	IPR028587	Adenylate kinase 2	Family
A	IPR007862	Adenylate kinase, active site lid domain	Domain
A	IPR000850	Adenylate kinase/UMP-CMP kinase	Family
A	IPR033690	Adenylate kinase, conserved site	Conserved Site
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.