Annotations: 2IY3

Structure of the E. Coli Signal Regognition Particle

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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	d2iy3a1	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 ], (Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)
A	d2iy3a2	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 ], (Saccharolobus solfataricus ) [TaxId: 2287 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Signal peptide binding domain-like	8056556	3001939	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Simibi-like P-loop NTPases	8089712	3002018	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SRP/SRP receptor N-terminal domain-like	8089711	3001834	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	PAP2	e2iy3A1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: Flavivirus capsid protein C	T: Flavivirus capsid protein C	F: PAP2	ECOD (v294.1)
A	Helicase_C	e2iy3A2	A: a/b three-layered sandwiches	X: HTH	H: HTH	T: winged helix domain	F: Helicase_C	ECOD (v294.1)
A	RGS	e2iy3A3	A: a/b three-layered sandwiches	X: Globin-like	H: Globin-like	T: Globin-like	F: RGS	ECOD (v294.1)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	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
C	SIGNAL SEQUENCE	-	-	-
B	4.5S RNA	-	-	-
A	Signal recognition particle protein,Signal recognition particle 54 kDa protein	RNA binding 7S RNA binding binding nucleic acid binding 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 RNA binding 7S RNA binding binding nucleic acid binding 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 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	establishment of protein localization cellular localization establishment of protein localization to membrane protein targeting localization within membrane establishment of localization protein targeting to membrane localization SRP-dependent cotranslational protein targeting to membrane establishment of protein localization to organelle cotranslational protein targeting to membrane cellular process establishment of protein localization to endoplasmic reticulum protein targeting to ER	signal recognition particle protein-containing complex cellular anatomical structure intracellular anatomical structure ribonucleoprotein complex cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

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

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