4PN0 | pdb_00004pn0

Structure of S. pombe Pct1 RNA triphosphatase

External Resource: Annotation

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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	CYTH-like phosphatases	8062149	3001426	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	CYTH-like phosphatases	8062149	3001426	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	CYTH-like phosphatases	8062149	3001426	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	CYTH-like phosphatases	8062149	3001426	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	mRNA_triPase	e4pn0A1	A: a+b complex topology	X: mRNA triphosphatase CET1-related (From Topology)	H: mRNA triphosphatase CET1-related (From Topology)	T: mRNA triphosphatase CET1-related	F: mRNA_triPase	ECOD (1.6)
D	mRNA_triPase	e4pn0D1	A: a+b complex topology	X: mRNA triphosphatase CET1-related (From Topology)	H: mRNA triphosphatase CET1-related (From Topology)	T: mRNA triphosphatase CET1-related	F: mRNA_triPase	ECOD (1.6)
C	mRNA_triPase	e4pn0C1	A: a+b complex topology	X: mRNA triphosphatase CET1-related (From Topology)	H: mRNA triphosphatase CET1-related (From Topology)	T: mRNA triphosphatase CET1-related	F: mRNA_triPase	ECOD (1.6)
B	mRNA_triPase	e4pn0B1	A: a+b complex topology	X: mRNA triphosphatase CET1-related (From Topology)	H: mRNA triphosphatase CET1-related (From Topology)	T: mRNA triphosphatase CET1-related	F: mRNA_triPase	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.100.10	Alpha Beta	Alpha-Beta Barrel	mRNA Triphosphatase Cet1	Chain A	CATH (4.3.0)
D	3.20.100.10	Alpha Beta	Alpha-Beta Barrel	mRNA Triphosphatase Cet1	Chain A	CATH (4.3.0)
C	3.20.100.10	Alpha Beta	Alpha-Beta Barrel	mRNA Triphosphatase Cet1	Chain A	CATH (4.3.0)
B	3.20.100.10	Alpha Beta	Alpha-Beta Barrel	mRNA Triphosphatase Cet1	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF02940	mRNA capping enzyme, beta chain (mRNA_triPase)	mRNA capping enzyme, beta chain	The beta chain of mRNA capping enzyme has triphosphatase activity. The function of the capping enzyme also depends on the guanylyltransferase activity conferred by the alpha chain (see Pfam:PF01331)	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	mRNA-capping enzyme subunit beta	basal transcription machinery binding RNA polymerase binding protein binding binding RNA polymerase II complex binding basal RNA polymerase II transcription machinery binding RNA polymerase II C-terminal domain binding RNA polymerase core enzyme binding enzyme binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity basal transcription machinery binding RNA polymerase binding protein binding binding RNA polymerase II complex binding basal RNA polymerase II transcription machinery binding RNA polymerase II C-terminal domain binding RNA polymerase core enzyme binding enzyme 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 phosphoric ester hydrolase activity hydrolase activity, acting on ester bonds polynucleotide 5'-phosphatase activity phosphatase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid mRNA 5'-triphosphate monophosphatase activity	7-methylguanosine mRNA capping RNA metabolic process primary metabolic process 7-methylguanosine RNA capping RNA capping gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process mRNA processing mRNA metabolic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process 7-methylguanosine mRNA capping RNA metabolic process primary metabolic process 7-methylguanosine RNA capping RNA capping gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process mRNA processing mRNA metabolic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process biosynthetic process RNA 5'-end processing metabolic process cellular process RNA processing macromolecule metabolic process	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR040343	RNA 5'-triphosphatase Cet1/Ctl1	Family
A, B, C, D	IPR004206	mRNA triphosphatase Cet1-like	Domain
A, B, C, D	IPR037009	mRNA triphosphatase Cet1-like superfamily	Homologous Superfamily
A, B, C, D	IPR033469	CYTH-like 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.