3IEU

Crystal Structure of ERA in Complex with GDP

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3ieua1	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	G proteins	GTPase Era, N-terminal domain	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)
A	d3ieua2	Alpha and beta proteins (a+b)	Alpha-lytic protease prodomain-like	Prokaryotic type KH domain (KH-domain type II)	Prokaryotic type KH domain (KH-domain type II)	GTPase Era C-terminal domain	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)
B	d3ieub1	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	G proteins	GTPase Era, N-terminal domain	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)
B	d3ieub2	Alpha and beta proteins (a+b)	Alpha-lytic protease prodomain-like	Prokaryotic type KH domain (KH-domain type II)	Prokaryotic type KH domain (KH-domain type II)	GTPase Era C-terminal domain	(Escherichia coli K-12 ) [TaxId: 83333 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ras-like P-loop GTPases	8089827	3002022	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Prokaryotic type KH domain (KH-domain type II)	8089829	3001043	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Ras-like P-loop GTPases	8089827	3002022	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Prokaryotic type KH domain (KH-domain type II)	8089829	3001043	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	KH_2	e3ieuA1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: KH-domains	T: Prokaryotic type KH domain (KH-domain type II)	F: KH_2	ECOD (1.6)
A	MnmE_helical_2nd	e3ieuA2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: MnmE_helical_2nd	ECOD (1.6)
B	KH_2	e3ieuB1	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: KH-domains	T: Prokaryotic type KH domain (KH-domain type II)	F: KH_2	ECOD (1.6)
B	MnmE_helical_2nd	e3ieuB2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: MnmE_helical_2nd	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	3.30.300.20	Alpha Beta	2-Layer Sandwich	GMP Synthetase	Chain A, domain 3	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)
B	3.30.300.20	Alpha Beta	2-Layer Sandwich	GMP Synthetase	Chain A, domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF07650	KH domain (KH_2)	KH domain	-	Domain
A, B	PF01926	50S ribosome-binding GTPase (MMR_HSR1)	50S ribosome-binding GTPase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	GTP-binding protein era	guanosine tetraphosphate binding guanyl nucleotide binding binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding guanosine tetraphosphate binding guanyl nucleotide binding binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding RNA binding rRNA binding nucleic acid binding small ribosomal subunit rRNA binding GTP binding purine ribonucleoside triphosphate binding pyrophosphatase activity GTPase activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity ribonucleoprotein complex binding protein-containing complex binding ribosomal small subunit binding ribosome binding	protein phosphorylation phosphorylation cellular metabolic process primary metabolic process macromolecule modification phosphate-containing compound metabolic process metabolic process cellular process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process cellular component biogenesis ribosome biogenesis protein phosphorylation phosphorylation cellular metabolic process primary metabolic process macromolecule modification phosphate-containing compound metabolic process metabolic process cellular process protein metabolic process macromolecule metabolic process protein modification process phosphorus metabolic process cellular component biogenesis ribosome biogenesis ribonucleoprotein complex biogenesis cellular component organization or biogenesis ribosomal small subunit biogenesis organelle assembly protein-containing complex organization non-membrane-bounded organelle assembly ribosomal small subunit assembly protein-RNA complex assembly cellular component organization organelle organization protein-RNA complex organization cellular component assembly protein-containing complex assembly ribosome assembly	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol cell periphery plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR005225	Small GTP-binding domain	Domain
A, B	IPR030388	Era-type guanine nucleotide-binding (G) domain	Domain
A, B	IPR009019	K homology domain superfamily, prokaryotic type	Homologous Superfamily
A, B	IPR005662	GTPase Era-like	Family
A, B	IPR004044	K Homology domain, type 2	Domain
A, B	IPR015946	K homology domain-like, alpha/beta	Homologous Superfamily
A, B	IPR006073	GTP binding domain	Domain
A, B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily

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.