1RJ9

Structure of the heterodimer of the conserved GTPase domains of the Signal Recognition Particle (Ffh) and Its Receptor (FtsY)

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	d1rj9a1	All alpha proteins	Four-helical up-and-down bundle	Domain of the SRP/SRP receptor G-proteins	Domain of the SRP/SRP receptor G-proteins	Signal recognition particle receptor, FtsY	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
A	d1rj9a2	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Nitrogenase iron protein-like	GTPase domain of the signal recognition particle receptor FtsY	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
B	d1rj9b1	All alpha proteins	Four-helical up-and-down bundle	Domain of the SRP/SRP receptor G-proteins	Domain of the SRP/SRP receptor G-proteins	Signal sequence recognition protein Ffh	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)
B	d1rj9b2	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Nitrogenase iron protein-like	GTPase domain of the signal sequence recognition protein Ffh	(Thermus aquaticus ) [TaxId: 271 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Simibi-like P-loop NTPases	8056572	3002018	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SRP/SRP receptor N-terminal domain-like	8056571	3001834	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SRP/SRP receptor N-terminal domain-like	8089711	3001834	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Simibi-like P-loop NTPases	8089712	3002018	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	SRP54_N	e1rj9A1	A: alpha bundles	X: Domain of the SRP/SRP receptor G proteins-like	H: Domain of the SRP/SRP receptor G-proteins (From Topology)	T: Domain of the SRP/SRP receptor G-proteins	F: SRP54_N	ECOD (1.6)
A	SRP54	e1rj9A2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: SRP54	ECOD (1.6)
B	SRP54_N	e1rj9B1	A: alpha bundles	X: Domain of the SRP/SRP receptor G proteins-like	H: Domain of the SRP/SRP receptor G-proteins (From Topology)	T: Domain of the SRP/SRP receptor G-proteins	F: SRP54_N	ECOD (1.6)
B	SRP54	e1rj9B2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: SRP54	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.120.140	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	SRP54, nucleotide-binding domain	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	1.20.120.140	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	SRP54, nucleotide-binding domain	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	PF00448	SRP54-type protein, GTPase domain (SRP54)	SRP54-type protein, GTPase domain	This family includes relatives of the G-domain of the SRP54 family of proteins.	Domain
B	PF00448	SRP54-type protein, GTPase domain (SRP54)	SRP54-type protein, GTPase domain	This family includes relatives of the G-domain of the SRP54 family of proteins.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Signal Recognition Protein	ribonucleoprotein complex binding protein-containing complex binding binding signal recognition particle binding pyrophosphatase activity ATP hydrolysis 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 ATP-dependent activity guanyl nucleotide binding GTP binding ribonucleoprotein complex binding protein-containing complex binding binding signal recognition particle binding pyrophosphatase activity ATP hydrolysis 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 ATP-dependent activity 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 GTPase activity	protein localization establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane protein localization to membrane establishment of localization protein targeting to membrane localization SRP-dependent cotranslational protein targeting to membrane establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle protein localization establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane protein localization to membrane establishment of localization protein targeting to membrane localization SRP-dependent cotranslational protein targeting to membrane establishment of protein localization to organelle cellular macromolecule localization macromolecule localization protein localization to organelle cotranslational protein targeting to membrane cellular process establishment of protein localization to endoplasmic reticulum protein localization to endoplasmic reticulum protein targeting to ER	cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm
B	Signal recognition particle protein	endoplasmic reticulum signal peptide binding signal sequence binding binding peptide binding RNA binding 7S RNA binding organic cyclic compound binding nucleic acid binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides endoplasmic reticulum signal peptide binding signal sequence binding binding peptide binding RNA binding 7S RNA binding organic cyclic compound binding nucleic acid binding pyrophosphatase activity ATP hydrolysis 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 ATP-dependent activity guanyl nucleotide binding GTP binding nucleotide binding guanyl ribonucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding GTPase activity	protein localization establishment of protein localization cellular localization nitrogen compound transport transport protein targeting localization SRP-dependent cotranslational protein targeting to membrane protein transmembrane transport cellular macromolecule localization establishment of localization in cell cotranslational protein targeting to membrane establishment of protein localization to endoplasmic reticulum protein localization to endoplasmic reticulum protein localization establishment of protein localization cellular localization nitrogen compound transport transport protein targeting localization SRP-dependent cotranslational protein targeting to membrane protein transmembrane transport cellular macromolecule localization establishment of localization in cell cotranslational protein targeting to membrane establishment of protein localization to endoplasmic reticulum protein localization to endoplasmic reticulum establishment of protein localization to membrane intracellular protein transmembrane transport intracellular transport localization within membrane protein localization to membrane establishment of localization protein targeting to membrane transmembrane transport establishment of protein localization to organelle protein transport macromolecule localization protein localization to organelle SRP-dependent cotranslational protein targeting to membrane, translocation cellular process intracellular protein transport protein targeting to ER	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol signal recognition particle protein-containing complex ribonucleoprotein complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR004390	Signal-recognition particle receptor FtsY	Family
A	IPR000897	Signal recognition particle, SRP54 subunit, GTPase domain	Domain
A	IPR036225	SRP/SRP receptor, N-terminal	Homologous Superfamily
A	IPR042101	Signal recognition particle SRP54, N-terminal domain superfamily	Homologous Superfamily
A	IPR003593	AAA+ ATPase domain	Domain
A	IPR013822	Signal recognition particle SRP54, helical bundle	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B	IPR000897	Signal recognition particle, SRP54 subunit, GTPase domain	Domain
B	IPR022941	Signal recognition particle, SRP54 subunit	Family
B	IPR036225	SRP/SRP receptor, N-terminal	Homologous Superfamily
B	IPR004125	Signal recognition particle, SRP54 subunit, M-domain	Domain
B	IPR042101	Signal recognition particle SRP54, N-terminal domain superfamily	Homologous Superfamily
B	IPR003593	AAA+ ATPase domain	Domain
B	IPR004780	Signal recognition particle protein	Family
B	IPR013822	Signal recognition particle SRP54, helical bundle	Domain
B	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
B	IPR036891	Signal recognition particle, SRP54 subunit, M-domain superfamily	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 R01GM133198.