Annotations: 5LAD

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF01926	e5ladA2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF01926	ECOD (1.6)
A	PF18128	e5ladA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF18128	ECOD (1.6)
A	PF18133	e5ladA3	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: PF18133	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)
A	3.40.50.11420	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
A	3.40.50.11410	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18133	Hydrogen maturase F tetramerization domain (HydF_tetramer)	Hydrogen maturase F tetramerization domain	This is the C-terminal domain found in Hydrogen maturase F (HydF) present in Thermotoga neapolitana. HydF is a GTPase, containing an FeS cluster-binding motif, that is able to are able to activate HydA produced so that HydA can drive the reversible r ...	This is the C-terminal domain found in Hydrogen maturase F (HydF) present in Thermotoga neapolitana. HydF is a GTPase, containing an FeS cluster-binding motif, that is able to are able to activate HydA produced so that HydA can drive the reversible reduction of protons to molecular H2. This domain is known as domain III, and is primarily responsible for homotetramer formation. Interactions between the two FeS cluster-binding domains worth noting are the interactions between beta-2 strands, the initial part of the long loop that connects strand beta-2 to strand beta-3, and the loop that connects strand beta-1 to helix alpha-3. There are three highly conserved cysteine residues (Cys-302, Cys-353, and Cys-356) that represent the FeS cluster-binding site which form a superficial pocket [1].	Domain
A	PF18128	Hydrogen maturase F dimerization domain (HydF_dimer)	Hydrogen maturase F dimerization domain	This domain is found in Hydrogen maturase F (HydF) present in Thermotoga neapolitana. HydF is a GTPase, containing an FeS cluster-binding motif, that is able to are able to activate HydA produced so that HydA can drive the reversible reduction of pro ...	This domain is found in Hydrogen maturase F (HydF) present in Thermotoga neapolitana. HydF is a GTPase, containing an FeS cluster-binding motif, that is able to are able to activate HydA produced so that HydA can drive the reversible reduction of protons to molecular H2. This domain, referred to as domain II, is responsible for HydF dimerization through the formation of a continuous beta-sheet comprising eight beta-strands from two monomers [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Putative GTP-binding protein	binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding binding guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding organic cyclic compound binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding	cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing cellular metabolic process tRNA modification primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process macromolecule methylation cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing cellular metabolic process tRNA modification primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process macromolecule methylation tRNA metabolic process organic cyclic compound metabolic process RNA modification biosynthetic process methylation macromolecule modification ncRNA metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process RNA methylation tRNA methylation tRNA wobble uridine modification tRNA wobble base modification	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041606	Hydrogen maturase F dimerization domain	Domain
A	IPR023873	[FeFe]-hydrogenase H-cluster maturation GTPase HydF	Family
A	IPR005225	Small GTP-binding protein domain	Domain
A	IPR040644	Hydrogen maturase F, tetramerization domain	Domain
A	IPR006073	GTP binding domain	Domain
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.