7EPK | pdb_00007epk

Crystal Structure of Signal Recognition Particle 54 kDa protein (SRP54) from Aeropyrum pernix K1 in Complex with GDP

External Resource: Annotation

Domain Annotation: SCOP/SCOPe 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	d7epka1	All alpha proteins	Four-helical up-and-down bundle	Domain of the SRP/SRP receptor G-proteins	automated matches	automated matches	(Aeropyrum pernix K1 ) [TaxId: 272557 ],	SCOPe (2.08)
A	d7epka3	All alpha proteins	Signal peptide-binding domain	Signal peptide-binding domain	automated matches	automated matches	(Aeropyrum pernix K1 ) [TaxId: 272557 ],	SCOPe (2.08)
A	d7epka2	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	automated matches	automated matches	(Aeropyrum pernix K1 ) [TaxId: 272557 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e7epkA1	A: Family A G protein-coupled receptor-like	X: Family A G protein-coupled receptor-like	H: Family A G protein-coupled receptor-like	T: SNF	F:	ECOD (20:10:01)

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 (utative)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (utative)
A	1.10.260.30	Mainly Alpha	Orthogonal Bundle	434 Repressor (Amino-terminal Domain)	Signal recognition particle, SRP54 subunit, M-domain	CATH (utative)

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
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
A	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	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

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.