2PO1

Crystal structure of the P. abyssi exosome RNase PH ring complexed with a single stranded 10-mer poly(A) RNA

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)
B [auth A]	d2po1a1	Alpha and beta proteins (a+b)	Ribosomal protein S5 domain 2-like	Ribosomal protein S5 domain 2-like	automated matches	automated matches	(Pyrococcus abyssi ) [TaxId: 29292 ],	SCOPe (2.08)
B [auth A]	d2po1a2	Alpha and beta proteins (a+b)	Ribonuclease PH domain 2-like	Ribonuclease PH domain 2-like	automated matches	automated matches	(Pyrococcus abyssi ) [TaxId: 29292 ],	SCOPe (2.08)
C [auth B]	d2po1b1	Alpha and beta proteins (a+b)	Ribosomal protein S5 domain 2-like	Ribosomal protein S5 domain 2-like	automated matches	automated matches	(Pyrococcus abyssi ) [TaxId: 29292 ],	SCOPe (2.08)
C [auth B]	d2po1b2	Alpha and beta proteins (a+b)	Ribonuclease PH domain 2-like	Ribonuclease PH domain 2-like	automated matches	automated matches	(Pyrococcus abyssi ) [TaxId: 29292 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth A]	RNase_PH	e2po1A2	A: a+b two layers	X: Ribosomal protein S5 domain 2-like (From Topology)	H: Ribosomal protein S5 domain 2-like (From Topology)	T: Ribosomal protein S5 domain 2-like	F: RNase_PH	ECOD (1.6)
B [auth A]	RNase_PH_C_3	e2po1A1	A: a+b two layers	X: Ribonuclease PH domain 2-like	H: Ribonuclease PH domain 2 (From Topology)	T: Ribonuclease PH domain 2	F: RNase_PH_C_3	ECOD (1.6)
C [auth B]	RNase_PH_2	e2po1B3	A: a+b two layers	X: Ribosomal protein S5 domain 2-like (From Topology)	H: Ribosomal protein S5 domain 2-like (From Topology)	T: Ribosomal protein S5 domain 2-like	F: RNase_PH_2	ECOD (1.6)
C [auth B]	RNase_PH_C_1	e2po1B4	A: a+b two layers	X: Ribonuclease PH domain 2-like	H: Ribonuclease PH domain 2 (From Topology)	T: Ribonuclease PH domain 2	F: RNase_PH_C_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	3.30.230.70	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)
C [auth B]	3.30.230.70	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A]	PF03725	3' exoribonuclease family, domain 2 (RNase_PH_C)	3' exoribonuclease family, domain 2	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of ...	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components, Swiss:P46948 Swiss:Q12277 and Swiss:P25359 contain a copy of this domain [1]. Swiss:Q10205, a hypothetical protein from S. pombe appears to belong to an uncharacterised subfamily. This subfamily is found in both eukaryotes and archaebacteria.	Domain
B [auth A]	PF01138	3' exoribonuclease family, domain 1 (RNase_PH)	3' exoribonuclease family, domain 1	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of ...	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components, Swiss:P46948 Swiss:Q12277 and Swiss:P25359 contain a copy of this domain [1]. Swiss:Q10205, a hypothetical protein from S. pombe appears to belong to an uncharacterised subfamily. This subfamily is found in both eukaryotes and archaebacteria.	Domain
C [auth B]	PF03725	3' exoribonuclease family, domain 2 (RNase_PH_C)	3' exoribonuclease family, domain 2	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of ...	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components, Swiss:P46948 Swiss:Q12277 and Swiss:P25359 contain a copy of this domain [1]. Swiss:Q10205, a hypothetical protein from S. pombe appears to belong to an uncharacterised subfamily. This subfamily is found in both eukaryotes and archaebacteria.	Domain
C [auth B]	PF01138	3' exoribonuclease family, domain 1 (RNase_PH)	3' exoribonuclease family, domain 1	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of ...	This family includes 3'-5' exoribonucleases. Ribonuclease PH contains a single copy of this domain, and removes nucleotide residues following the -CCA terminus of tRNA. Polyribonucleotide nucleotidyltransferase (PNPase) contains two tandem copies of the domain. PNPase is involved in mRNA degradation in a 3'-5' direction. The exosome is a 3'-5' exoribonuclease complex that is required for 3' processing of the 5.8S rRNA. Three of its five protein components, Swiss:P46948 Swiss:Q12277 and Swiss:P25359 contain a copy of this domain [1]. Swiss:Q10205, a hypothetical protein from S. pombe appears to belong to an uncharacterised subfamily. This subfamily is found in both eukaryotes and archaebacteria.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	10-mer poly(A)	-	-	-
B [auth A]	Probable exosome complex exonuclease 1	3'-5'-RNA exonuclease activity catalytic activity, acting on RNA RNA exonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on a nucleic acid 3'-5' exonuclease activity RNA exonuclease activity RNA nuclease activity hydrolase activity exonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters nuclease activity hydrolase activity, acting on ester bonds exonuclease activity catalytic activity	catabolic process RNA metabolic process primary metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process RNA catabolic process	exosome (RNase complex) protein-containing complex intracellular anatomical structure catalytic complex cellular anatomical entity exoribonuclease complex cytoplasm
C [auth B]	Probable exosome complex exonuclease 2	-	catabolic process RNA metabolic process primary metabolic process nucleic acid metabolic process macromolecule catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process RNA catabolic process	exosome (RNase complex) protein-containing complex intracellular anatomical structure catalytic complex cellular anatomical entity exoribonuclease complex cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth A]	IPR011807	Exosome complex component Rrp41	Family
B [auth A]	IPR027408	PNPase/RNase PH domain superfamily	Homologous Superfamily
B [auth A]	IPR001247	Exoribonuclease, phosphorolytic domain 1	Domain
B [auth A]	IPR036345	Exoribonuclease, PH domain 2 superfamily	Homologous Superfamily
B [auth A]	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
B [auth A]	IPR015847	Exoribonuclease, phosphorolytic domain 2	Domain
B [auth A]	IPR050080	Ribonuclease PH	Family
C [auth B]	IPR027408	PNPase/RNase PH domain superfamily	Homologous Superfamily
C [auth B]	IPR001247	Exoribonuclease, phosphorolytic domain 1	Domain
C [auth B]	IPR050590	Exosome complex component Rrp42 subfamily	Family
C [auth B]	IPR036345	Exoribonuclease, PH domain 2 superfamily	Homologous Superfamily
C [auth B]	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
C [auth B]	IPR015847	Exoribonuclease, phosphorolytic domain 2	Domain
C [auth B]	IPR020869	Exosome complex component Rrp42, archaea	Family

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.