4ES5

Crystal structure of the cap-binding domain of polymerase basic protein 2 from influenza virus A/Bar-headed Gs/Qinghai/15c/2005 (h5n1) with bound m7GTP

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Flu_PB2_5th	e4es5B1	A: a+b three layers	X: Polymerase basic protein 2 cap-binding domain (From Topology)	H: Polymerase basic protein 2 cap-binding domain (From Topology)	T: Polymerase basic protein 2 cap-binding domain	F: Flu_PB2_5th	ECOD (1.6)
C	Flu_PB2_5th	e4es5C1	A: a+b three layers	X: Polymerase basic protein 2 cap-binding domain (From Topology)	H: Polymerase basic protein 2 cap-binding domain (From Topology)	T: Polymerase basic protein 2 cap-binding domain	F: Flu_PB2_5th	ECOD (1.6)
D	Flu_PB2_5th	e4es5D1	A: a+b three layers	X: Polymerase basic protein 2 cap-binding domain (From Topology)	H: Polymerase basic protein 2 cap-binding domain (From Topology)	T: Polymerase basic protein 2 cap-binding domain	F: Flu_PB2_5th	ECOD (1.6)
A	Flu_PB2_5th	e4es5A1	A: a+b three layers	X: Polymerase basic protein 2 cap-binding domain (From Topology)	H: Polymerase basic protein 2 cap-binding domain (From Topology)	T: Polymerase basic protein 2 cap-binding domain	F: Flu_PB2_5th	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00604	Influenza RNA polymerase PB2 CAP binding domain (Flu_PB2_5th)	Influenza RNA polymerase PB2 CAP binding domain	Influenza virus encodes a large, multidomain RNA-dependent RNA polymerase that can both transcribe and replicate the viral RNA genome. In influenza virus, the polymerase is composed of three polypeptides: PB1, PB2 and PA/P3. PB1 houses the polymerase ...	Influenza virus encodes a large, multidomain RNA-dependent RNA polymerase that can both transcribe and replicate the viral RNA genome. In influenza virus, the polymerase is composed of three polypeptides: PB1, PB2 and PA/P3. PB1 houses the polymerase active site, whereas PB2 and PA/P3 contain, respectively, cap-binding [1] and endonuclease domains required for transcription initiation by cap-snatching [2]. This entry represents the CAP binding domain [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Polymerase basic subunit 2	5'-3' RNA polymerase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA polymerase activity transferase activity RNA-dependent RNA polymerase activity nucleotidyltransferase activity catalytic activity transferase activity, transferring phosphorus-containing groups RNA binding binding organic cyclic compound binding nucleic acid binding	symbiont-mediated suppression of host transcription biological process involved in interspecies interaction between organisms symbiont-mediated suppression of host mRNA transcription via inhibition of RNA polymerase II activity symbiont-mediated perturbation of host process modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity response to stimulus symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway response to biotic stimulus symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated suppression of host transcription biological process involved in interspecies interaction between organisms symbiont-mediated suppression of host mRNA transcription via inhibition of RNA polymerase II activity symbiont-mediated perturbation of host process modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host cytoplasmic pattern recognition receptor signaling pathway via inhibition of MAVS activity response to stimulus symbiont-mediated suppression of host pathogen-associated molecular pattern receptor signaling pathway response to biotic stimulus symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated suppression of host defenses symbiont-mediated perturbation of host innate immune response response to host response to external biotic stimulus symbiont-mediated perturbation of host signal transduction pathway symbiont-mediated perturbation of host defense response response to host defenses response to other organism symbiont-mediated perturbation of host immune response symbiont-mediated perturbation of host defenses response to defenses of other organism response to external stimulus symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of cytoplasmic pattern recognition receptor signaling pathway RNA metabolic process viral life cycle primary metabolic process nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process nucleic acid biosynthetic process viral genome replication biosynthetic process viral RNA genome replication viral process metabolic process cellular process macromolecule metabolic process viral gene expression cap snatching negative stranded viral RNA transcription viral transcription RNA-templated viral transcription modulation by virus of host process virus-mediated perturbation of host defense response modulation by virus of host cellular process 7-methylguanosine mRNA capping 7-methylguanosine RNA capping RNA capping gene expression mRNA processing mRNA metabolic process RNA 5'-end processing RNA processing DNA-templated transcription	host intracellular membrane-bounded organelle host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region host cell mitochondrion host cell cytoplasm part host intracellular organelle host cell nucleus virion component

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR001591	Influenza RNA-dependent RNA polymerase subunit PB2	Family
A, B, C, D	IPR049106	Influenza RNA polymerase PB2, N-terminal region	Domain
A, B, C, D	IPR049115	Influenza RNA polymerase PB2, C-terminal domain	Domain
A, B, C, D	IPR049110	Influenza RNA polymerase PB2, second domain	Domain
A, B, C, D	IPR049114	Influenza RNA polymerase PB2, sixth domain	Domain
A, B, C, D	IPR049113	Polymerase basic protein 2, helical domain	Domain
A, B, C, D	IPR049111	Influenza RNA polymerase PB2, middle domain	Domain
A, B, C, D	IPR048298	Influenza RNA polymerase PB2, CAP binding domain	Domain
A, B, C, D	IPR037258	PB2, C-terminal	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.