4XCO

Signal-sequence induced conformational changes in the signal recognition particle

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)
B [auth A]	d4xcoa_	Alpha and beta proteins (a+b)	SRP19	SRP19	SRP19	SRP19	(Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)
D [auth B]	d4xcob_	Alpha and beta proteins (a+b)	SRP19	SRP19	SRP19	SRP19	(Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)
F [auth D]	d4xcod_	All alpha proteins	Signal peptide-binding domain	Signal peptide-binding domain	automated matches	automated matches	(Methanocaldococcus jannaschii ) [TaxId: 2190 ], (Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2B Superfamily	SRP19	8041324	3000831	SCOP2B (2022-06-29)
D [auth B]	SCOP2B Superfamily	SRP19	8041324	3000831	SCOP2B (2022-06-29)
E [auth C]	SCOP2B Superfamily	Signal peptide binding domain-like	8017992	3001939	SCOP2B (2022-06-29)
F [auth D]	SCOP2B Superfamily	Signal peptide binding domain-like	8017992	3001939	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)
B [auth A]	PF01922	e4xcoA1	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: PF01922	ECOD (1.6)
D [auth B]	PF01922	e4xcoB1	A: alpha arrays	X: HTH	H: HTH	T: Putative DNA-binding domain	F: PF01922	ECOD (1.6)
E [auth C]	PF02978	e4xcoC1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PF02978	ECOD (1.6)
F [auth D]	PF02978	e4xcoD1	A: alpha arrays	X: HTH	H: HTH	T: tri-helical	F: PF02978	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	3.30.56.30	Alpha Beta	2-Layer Sandwich	Phenylalanyl-tRNA Synthetase	Chain B, domain 1	CATH (4.3.0)
D [auth B]	3.30.56.30	Alpha Beta	2-Layer Sandwich	Phenylalanyl-tRNA Synthetase	Chain B, domain 1	CATH (4.3.0)
F [auth D]	1.10.260.30	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	Signal recognition particle, SRP54 subunit, M-domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A], D [auth B]	PF01922	SRP19 protein (SRP19)	SRP19 protein	-	Family
E [auth C], F [auth D]	PF02978	Signal peptide binding domain (SRP_SPB)	Signal peptide binding domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth M], C [auth E]	RNA	-	-	-
B [auth A], D [auth B]	Signal recognition particle 19 kDa protein	RNA binding 7S RNA binding binding organic cyclic compound binding nucleic acid binding	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	signal recognition particle protein-containing complex intracellular anatomical structure ribonucleoprotein complex cytoplasm cellular anatomical entity
E [auth C], F [auth D]	Signal recognition particle 54 kDa protein,signal sequence	RNA binding 7S RNA binding 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 molecular adaptor activity RNA binding 7S RNA binding 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 molecular adaptor 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 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	signal recognition particle protein-containing complex intracellular anatomical structure ribonucleoprotein complex cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth A], D [auth B]	IPR002778	Signal recognition particle, SRP19 subunit	Family
B [auth A], D [auth B]	IPR022938	Signal recognition particle, SRP19 subunit, archaeal-type	Family
B [auth A], D [auth B]	IPR036521	Signal recognition particle, subunit SRP19-like superfamily	Homologous Superfamily
E [auth C], F [auth D]	IPR000897	Signal recognition particle, SRP54 subunit, GTPase domain	Domain
E [auth C], F [auth D]	IPR022941	Signal recognition particle, SRP54 subunit	Family
E [auth C], F [auth D]	IPR036225	SRP/SRP receptor, N-terminal	Homologous Superfamily
E [auth C], F [auth D]	IPR004125	Signal recognition particle, SRP54 subunit, M-domain	Domain
E [auth C], F [auth D]	IPR042101	Signal recognition particle SRP54, N-terminal domain superfamily	Homologous Superfamily
E [auth C], F [auth D]	IPR003593	AAA+ ATPase domain	Domain
E [auth C], F [auth D]	IPR013822	Signal recognition particle SRP54, helical bundle	Domain
E [auth C], F [auth D]	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
E [auth C], F [auth D]	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.