Annotations: 2JA9

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2ja9a1	All beta proteins	OB-fold	Nucleic acid-binding proteins	Cold shock DNA-binding domain-like	S1-domain of exosome component 3 (RRP40)	BAKERS' YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
A	d2ja9a2	Alpha and beta proteins (a+b)	Eukaryotic type KH-domain (KH-domain type I)	Eukaryotic type KH-domain (KH-domain type I)	Eukaryotic type KH-domain (KH-domain type I)	Ribosomal RNA-processing protein 40, RRP40	BAKERS' YEAST (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Cold shock DNA-binding domain-like	8022276	4001909	SCOP2 (2022-06-29)
A	SCOP2 Family	Eukaryotic type KH-domain (KH-domain type I)	8022277	4001190	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Nucleic acid-binding proteins	8034656	3000135	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Eukaryotic type KH-domain (KH-domain type I)	8034657	3001023	SCOP2 (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	S1	e2ja9A1	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: S1	ECOD (1.6)
A	KH_6	e2ja9A2	A: a+b two layers	X: Alpha-lytic protease prodomain-like	H: KH-domains	T: Eukaryotic type KH-domain (KH-domain type I)	F: KH_6	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
A	3.30.1370.10	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S8	Chain: A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF18311	Exosome complex exonuclease Rrp40 N-terminal domain (Rrp40_N)	Exosome complex exonuclease Rrp40 N-terminal domain	This is the N-terminal domain of Rrp40 of the exosome complex present in Saccharomyces cerevisiae. The RNA exosome complex is responsible for degrading RNA molecules in the 3' to 5' direction. Rrp40 is a 'cap' protein and binds the RNase PH barrel on ...	This is the N-terminal domain of Rrp40 of the exosome complex present in Saccharomyces cerevisiae. The RNA exosome complex is responsible for degrading RNA molecules in the 3' to 5' direction. Rrp40 is a 'cap' protein and binds the RNase PH barrel on the opposite side from the S1/KH ring. The N-terminal domain of Rrp44 forms a long beta-hairpin that is wedged in between Rrp41-Rrp42 and approaches the N terminus of the cap protein Rrp4 [1]. This domain adopts a beta- sandwich hybrid structure.	Domain
A	PF21262	Exosome complex component RRP40, S1 domain (RRP40_S1)	Exosome complex component RRP40, S1 domain	RRP40 is a non-catalytic component of the RNA exosome complex which has 3'->5' exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. It consists of a N-terminal beta-sandwich hybrid domain (Pfam:P ...	RRP40 is a non-catalytic component of the RNA exosome complex which has 3'->5' exoribonuclease activity and participates in a multitude of cellular RNA processing and degradation events. It consists of a N-terminal beta-sandwich hybrid domain (Pfam:PF21261), a central S1 domain and a C-terminal KH domain (Pfam:PF15985). This entry represents the S1 RNA binding domain, which has an OB fold [1-3].	Domain
A	PF15985	KH domain (KH_6)	KH domain	KH motifs bind RNA in vitro. Auto-antibodies to Nova, a KH domain protein, cause para-neoplastic opsoclonus ataxia.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	EXOSOME COMPLEX EXONUCLEASE RRP40	cation binding manganese ion binding transition metal ion binding ion binding binding metal ion binding small molecule binding RNA binding organic cyclic compound binding nucleic acid binding	catabolic process RNA metabolic process primary metabolic process nucleic acid metabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process organic substance catabolic process catabolic process RNA metabolic process primary metabolic process nucleic acid metabolic process macromolecule catabolic process organic cyclic compound catabolic process nucleobase-containing compound catabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process nucleic acid catabolic process metabolic process macromolecule metabolic process organic substance catabolic process RNA catabolic process nuclear RNA surveillance tRNA metabolic process TRAMP-dependent tRNA surveillance pathway tRNA surveillance ncRNA metabolic process RNA surveillance tRNA decay cellular biosynthetic process sno(s)RNA metabolic process organic substance biosynthetic process RNA 3'-end processing RNA processing poly(A)-dependent snoRNA 3'-end processing sno(s)RNA processing cellular metabolic process gene expression macromolecule biosynthetic process sno(s)RNA 3'-end processing biosynthetic process cellular process CUT metabolic process CUT catabolic process nuclear polyadenylation-dependent rRNA catabolic process ribonucleoprotein complex biogenesis exonucleolytic trimming to generate mature 3'-end of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) rRNA processing cellular component biogenesis ribosome biogenesis cellular component organization or biogenesis rRNA metabolic process maturation of 5.8S rRNA maturation of 5.8S rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) rRNA 3'-end processing U4 snRNA 3'-end processing snRNA metabolic process snRNA processing snRNA 3'-end processing	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle exosome (RNase complex) protein-containing complex catalytic complex exoribonuclease complex nuclear protein-containing complex nuclear exosome (RNase complex) cytoplasm cytoplasmic exosome (RNase complex)

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041054	Exosome complex exonuclease Rrp40, N-terminal domain, eukaryotes	Domain
A	IPR049469	Exosome complex component RRP40, type I KH domain	Domain
A	IPR037319	Rrp40, S1 domain	Domain
A	IPR036612	K Homology domain, type 1 superfamily	Homologous Superfamily
A	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A	IPR026699	Exosome complex RNA-binding protein 1/RRP40/RRP4	Family
A	IPR004088	K Homology domain, type 1	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.