Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF00603e5m3hA2 A: a+b complex topologyX: Polymerase acidic protein (From Topology)H: Polymerase acidic protein (From Topology)T: Polymerase acidic proteinF: PF00603ECOD (1.6)
APF00603e5m3hA1 A: a/b three-layered sandwichesX: Restriction endonuclease-likeH: Restriction endonuclease-like (From Topology)T: Restriction endonuclease-likeF: PF00603ECOD (1.6)
BPF00602e5m3hB2 A: alpha bundlesX: helical bundle domain in reverse transcriptase-like polymerases (From Topology)H: helical bundle domain in reverse transcriptase-like polymerases (From Topology)T: helical bundle domain in reverse transcriptase-like polymerasesF: PF00602ECOD (1.6)
BPF00602e5m3hB3 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: PF00602ECOD (1.6)
BPF00602e5m3hB1 A: extended segmentsX: RNA polymerase PB1 C-terminal fragment (From Topology)H: RNA polymerase PB1 C-terminal fragment (From Topology)T: RNA polymerase PB1 C-terminal fragmentF: PF00602ECOD (1.6)
CPF00604,PF20951e5m3hC4 A: alpha arraysX: PB2 '627' domain-related (From Homology)H: PB2 '627' domain-relatedT: Polymerase basic protein 2 (PB2) '627' domainF: PF00604,PF20951ECOD (1.6)
CPF20950e5m3hC3 A: alpha arraysX: Helical domain in PB2 (From Topology)H: Helical domain in PB2 (From Topology)T: Helical domain in PB2F: PF20950ECOD (1.6)
CPF20952e5m3hC5 A: a+b two layersX: PB2 C-terminal domain-like (From Topology)H: PB2 C-terminal domain-like (From Topology)T: PB2 C-terminal domain-likeF: PF20952ECOD (1.6)
CPF20948e5m3hC6 A: a+b two layersX: a+b domain in PB2 (From Topology)H: a+b domain in PB2 (From Topology)T: a+b domain in PB2F: PF20948ECOD (1.6)
CPF00604e5m3hC1 A: a+b three layersX: 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 domainF: PF00604ECOD (1.6)
CPF20949e5m3hC7 A: a+b complex topologyX: Middle domain in PB2 (From Topology)H: Middle domain in PB2 (From Topology)T: Middle domain in PB2F: PF20949ECOD (1.6)
CPF20947e5m3hC2 A: extended segmentsX: RNA polymerase PB2 N-terminal fragment (From Topology)H: RNA polymerase PB2 N-terminal fragment (From Topology)T: RNA polymerase PB2 N-terminal fragmentF: PF20947ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00603Influenza RNA-dependent RNA polymerase subunit PA (Flu_PA)Influenza RNA-dependent RNA polymerase subunit PA- Family
PF00602Influenza RNA-dependent RNA polymerase subunit PB1 (Flu_PB1)Influenza RNA-dependent RNA polymerase subunit PB1- Family
PF00604Influenza RNA polymerase PB2 CAP binding domain (Flu_PB2_5th)Influenza RNA polymerase PB2 CAP binding domainInfluenza 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
PF20948Influenza RNA polymerase PB2 second domain (Flu_PB2_2nd)Influenza RNA polymerase PB2 second domainInfluenza 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 domain of the Flu PB protein that follows the N-terminal extended region.
Domain
PF20947Influenza RNA polymerase PB2 N-terminal region (Flu_PB2_1st)Influenza RNA polymerase PB2 N-terminal region- Family
PF20949Influenza RNA polymerase PB2 middle domain (Flu_PB2_3rd)Influenza RNA polymerase PB2 middle domainInfluenza 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 middle domain in Flu PB2 protein.
Domain
PF20951Influenza RNA polymerase PB2 6th domain (Flu_PB2_6th)Influenza RNA polymerase PB2 6th domainInfluenza 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 6th domain of PB2.
Domain
PF20950Influenza RNA polymerase PB2 helical domain (Flu_PB2_4th)Influenza RNA polymerase PB2 helical domainInfluenza 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 helical domain of Flu PB2 protein.
Domain
PF20952Influenza RNA polymerase PB2 C-terminal domain (Flu_PB2_7th)Influenza RNA polymerase PB2 C-terminal domainInfluenza 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 C-terminal domain of Flu PB2 protein.
Domain
F [auth X],
G [auth Y]
PF05001RNA polymerase Rpb1 C-terminal repeat (RNA_pol_Rpb1_R)RNA polymerase Rpb1 C-terminal repeat- Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Polymerase acidic protein -
RNA-directed RNA polymerase catalytic subunit
Polymerase basic protein 2
D [auth R]RNA (5'-R(*UP*AP*UP*AP*CP*CP*UP*CP*UP*GP*CP*UP*U)-3')---
E [auth V]RNA 5'-pAGUAGUAACAAGAGGG---
F [auth X],
G [auth Y]
TYR-SER-PRO-THR-SEP-PRO

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR001009Influenza RNA-dependent RNA polymerase subunit PAFamily
IPR038372Influenza RNA-dependent RNA polymerase subunit PA, endonuclease domainHomologous Superfamily
IPR007099RNA-directed RNA polymerase, negative-strand RNA virusDomain
IPR001407Influenza RNA-dependent RNA polymerase subunit PB1Family
IPR049106Influenza RNA polymerase PB2, N-terminal regionDomain
IPR049115Influenza RNA polymerase PB2, C-terminal domainDomain
IPR049110Influenza RNA polymerase PB2, second domainDomain
IPR049114Influenza RNA polymerase PB2, sixth domainDomain
IPR049113Polymerase basic protein 2, helical domainDomain
IPR049111Influenza RNA polymerase PB2, middle domainDomain
IPR048298Influenza RNA polymerase PB2, CAP binding domainDomain
IPR037258PB2, C-terminalHomologous Superfamily
F [auth X],
G [auth Y]
IPR007081RNA polymerase Rpb1, domain 5Domain
F [auth X],
G [auth Y]
IPR045867DNA-directed RNA polymerase, subunit beta-primeFamily
F [auth X],
G [auth Y]
IPR007075RNA polymerase Rpb1, domain 6Domain
F [auth X],
G [auth Y]
IPR000684RNA polymerase II, heptapeptide repeat, eukaryoticRepeat
F [auth X],
G [auth Y]
IPR007083RNA polymerase Rpb1, domain 4Domain
F [auth X],
G [auth Y]
IPR044893RNA polymerase Rpb1, clamp domain superfamilyHomologous Superfamily
F [auth X],
G [auth Y]
IPR006592RNA polymerase, N-terminalDomain
F [auth X],
G [auth Y]
IPR007066RNA polymerase Rpb1, domain 3Domain
F [auth X],
G [auth Y]
IPR007073RNA polymerase Rpb1, domain 7Domain
F [auth X],
G [auth Y]
IPR042102RNA polymerase Rpb1, domain 3 superfamilyHomologous Superfamily
F [auth X],
G [auth Y]
IPR038593RNA polymerase Rpb1, domain 7 superfamilyHomologous Superfamily
F [auth X],
G [auth Y]
IPR000722RNA polymerase, alpha subunitDomain
F [auth X],
G [auth Y]
IPR038120RNA polymerase Rpb1, funnel domain superfamilyHomologous Superfamily
F [auth X],
G [auth Y]
IPR007080RNA polymerase Rpb1, domain 1Domain

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
F [auth X],
G [auth Y]
SEP Parent Component: SER

RESIDAA0037

PSI-MOD :  O-phospho-L-serine MOD:00046