Annotations: 4PZ7

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	PF03919	e4pz7B2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF03919	ECOD (1.6)
B	PF01331	e4pz7B1	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: ATP-grasp	F: PF01331	ECOD (1.6)
A	PF03919	e4pz7A2	A: beta barrels	X: OB-fold	H: Nucleic acid-binding proteins (From Topology)	T: Nucleic acid-binding proteins	F: PF03919	ECOD (1.6)
A	PF01331	e4pz7A1	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: ATP-grasp	F: PF01331	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
B	3.30.470.30	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)
A	2.40.50.140	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)	Nucleic acid-binding proteins	CATH (4.3.0)
A	3.30.470.30	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF03919	mRNA capping enzyme, C-terminal domain (mRNA_cap_C)	mRNA capping enzyme, C-terminal domain	-	Domain
A, B	PF01331	mRNA capping enzyme, catalytic domain (mRNA_cap_enzyme)	mRNA capping enzyme, catalytic domain	This family represents the ATP binding catalytic domain of the mRNA capping enzyme.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	mRNA-capping enzyme subunit alpha	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 adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding 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 adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding guanylyltransferase activity mRNA guanylyltransferase activity RNA guanylyltransferase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid transferase activity catalytic activity nucleotidyltransferase activity transferase activity, transferring phosphorus-containing groups guanyl nucleotide binding GTP binding guanyl ribonucleotide binding	cellular biosynthetic process RNA metabolic process 7-methylguanosine RNA capping RNA capping mRNA processing nucleobase-containing compound metabolic process nucleic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process RNA processing 7-methylguanosine mRNA capping cellular metabolic process primary metabolic process gene expression cellular biosynthetic process RNA metabolic process 7-methylguanosine RNA capping RNA capping mRNA processing nucleobase-containing compound metabolic process nucleic acid biosynthetic process organic substance metabolic process organic substance biosynthetic process RNA processing 7-methylguanosine mRNA capping cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process mRNA metabolic process nucleic acid metabolic process organic cyclic compound metabolic process biosynthetic process RNA 5'-end processing metabolic process cellular process macromolecule metabolic process	membrane-bounded organelle intracellular organelle protein-containing complex intracellular anatomical structure organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle cellular anatomical entity mRNA capping enzyme complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001339	mRNA capping enzyme, adenylation domain	Domain
A, B	IPR017075	mRNA capping enzyme, alpha subunit	Family
A, B	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A, B	IPR013846	mRNA capping enzyme, C-terminal	Domain

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	GPL	Parent Component: LYS RESID: AA0228 PSI-MOD : N6-(phospho-5'-guanosine)-L-lysine MOD:00233

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 R01GM133198.