Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
PV-set_12e6qpgP1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
OV-set_12e6qpgO1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
NV-set_12e6qpgN1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
MV-set_12e6qpgM1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_12ECOD (1.6)
LFlu_PB2_6the6qpgL2 A: alpha arraysX: PB2 '627' domain-related (From Homology)H: PB2 '627' domain-relatedT: Polymerase basic protein 2 (PB2) '627' domainF: Flu_PB2_6thECOD (1.6)
LFlu_PB2_4the6qpgL5 A: alpha arraysX: Helical domain in PB2 (From Topology)H: Helical domain in PB2 (From Topology)T: Helical domain in PB2F: Flu_PB2_4thECOD (1.6)
LFlu_PB2_7the6qpgL4 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: Flu_PB2_7thECOD (1.6)
LFlu_PB2_2nde6qpgL3 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: Flu_PB2_2ndECOD (1.6)
LFlu_PB2_5the6qpgL6 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: Flu_PB2_5thECOD (1.6)
LFlu_PB2_3rde6qpgL1 A: a+b complex topologyX: Middle domain in PB2 (From Topology)H: Middle domain in PB2 (From Topology)T: Middle domain in PB2F: Flu_PB2_3rdECOD (1.6)
LFlu_PB2_1ste6qpgL7 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: Flu_PB2_1stECOD (1.6)
IFlu_PB2_6the6qpgI1 A: alpha arraysX: PB2 '627' domain-related (From Homology)H: PB2 '627' domain-relatedT: Polymerase basic protein 2 (PB2) '627' domainF: Flu_PB2_6thECOD (1.6)
IFlu_PB2_4the6qpgI6 A: alpha arraysX: Helical domain in PB2 (From Topology)H: Helical domain in PB2 (From Topology)T: Helical domain in PB2F: Flu_PB2_4thECOD (1.6)
IFlu_PB2_7the6qpgI3 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: Flu_PB2_7thECOD (1.6)
IFlu_PB2_2nde6qpgI5 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: Flu_PB2_2ndECOD (1.6)
IFlu_PB2_5the6qpgI2 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: Flu_PB2_5thECOD (1.6)
IFlu_PB2_3rde6qpgI7 A: a+b complex topologyX: Middle domain in PB2 (From Topology)H: Middle domain in PB2 (From Topology)T: Middle domain in PB2F: Flu_PB2_3rdECOD (1.6)
IFlu_PB2_1ste6qpgI4 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: Flu_PB2_1stECOD (1.6)
FFlu_PB2_6the6qpgF5 A: alpha arraysX: PB2 '627' domain-related (From Homology)H: PB2 '627' domain-relatedT: Polymerase basic protein 2 (PB2) '627' domainF: Flu_PB2_6thECOD (1.6)
FFlu_PB2_4the6qpgF2 A: alpha arraysX: Helical domain in PB2 (From Topology)H: Helical domain in PB2 (From Topology)T: Helical domain in PB2F: Flu_PB2_4thECOD (1.6)
FFlu_PB2_7the6qpgF4 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: Flu_PB2_7thECOD (1.6)
FFlu_PB2_2nde6qpgF7 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: Flu_PB2_2ndECOD (1.6)
FFlu_PB2_5the6qpgF3 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: Flu_PB2_5thECOD (1.6)
FFlu_PB2_3rde6qpgF6 A: a+b complex topologyX: Middle domain in PB2 (From Topology)H: Middle domain in PB2 (From Topology)T: Middle domain in PB2F: Flu_PB2_3rdECOD (1.6)
FFlu_PB2_1ste6qpgF1 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: Flu_PB2_1stECOD (1.6)
CFlu_PB2_6the6qpgC5 A: alpha arraysX: PB2 '627' domain-related (From Homology)H: PB2 '627' domain-relatedT: Polymerase basic protein 2 (PB2) '627' domainF: Flu_PB2_6thECOD (1.6)
CFlu_PB2_4the6qpgC1 A: alpha arraysX: Helical domain in PB2 (From Topology)H: Helical domain in PB2 (From Topology)T: Helical domain in PB2F: Flu_PB2_4thECOD (1.6)
CFlu_PB2_7the6qpgC2 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: Flu_PB2_7thECOD (1.6)
CFlu_PB2_2nde6qpgC4 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: Flu_PB2_2ndECOD (1.6)
CFlu_PB2_5the6qpgC6 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: Flu_PB2_5thECOD (1.6)
CFlu_PB2_3rde6qpgC7 A: a+b complex topologyX: Middle domain in PB2 (From Topology)H: Middle domain in PB2 (From Topology)T: Middle domain in PB2F: Flu_PB2_3rdECOD (1.6)
CFlu_PB2_1ste6qpgC3 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: Flu_PB2_1stECOD (1.6)
KFlu_PB1_2nde6qpgK2 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: Flu_PB1_2ndECOD (1.6)
KFlu_PB1_1ste6qpgK3 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: Flu_PB1_1stECOD (1.6)
KFlu_PB1_3rde6qpgK1 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: Flu_PB1_3rdECOD (1.6)
HFlu_PB1_2nde6qpgH2 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: Flu_PB1_2ndECOD (1.6)
HFlu_PB1_1ste6qpgH1 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: Flu_PB1_1stECOD (1.6)
HFlu_PB1_3rde6qpgH3 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: Flu_PB1_3rdECOD (1.6)
EFlu_PB1_2nde6qpgE1 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: Flu_PB1_2ndECOD (1.6)
EFlu_PB1_1ste6qpgE2 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: Flu_PB1_1stECOD (1.6)
EFlu_PB1_3rde6qpgE3 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: Flu_PB1_3rdECOD (1.6)
BFlu_PB1_2nde6qpgB2 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: Flu_PB1_2ndECOD (1.6)
BFlu_PB1_1ste6qpgB1 A: a+b two layersX: Alpha-beta plaitsH: Adenylyl and guanylyl cyclase catalytic domain-likeT: Adenylyl and guanylyl cyclase catalytic domain-likeF: Flu_PB1_1stECOD (1.6)
BFlu_PB1_3rde6qpgB3 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: Flu_PB1_3rdECOD (1.6)
JFlu_PA_Ce6qpgJ2 A: a+b complex topologyX: Polymerase acidic protein (From Topology)H: Polymerase acidic protein (From Topology)T: Polymerase acidic proteinF: Flu_PA_CECOD (1.6)
JFlu_PA_Ne6qpgJ1 A: a/b three-layered sandwichesX: Restriction endonuclease-likeH: Restriction endonuclease-like (From Topology)T: Restriction endonuclease-likeF: Flu_PA_NECOD (1.6)
GFlu_PA_Ce6qpgG2 A: a+b complex topologyX: Polymerase acidic protein (From Topology)H: Polymerase acidic protein (From Topology)T: Polymerase acidic proteinF: Flu_PA_CECOD (1.6)
GFlu_PA_Ne6qpgG1 A: a/b three-layered sandwichesX: Restriction endonuclease-likeH: Restriction endonuclease-like (From Topology)T: Restriction endonuclease-likeF: Flu_PA_NECOD (1.6)
DFlu_PA_Ce6qpgD1 A: a+b complex topologyX: Polymerase acidic protein (From Topology)H: Polymerase acidic protein (From Topology)T: Polymerase acidic proteinF: Flu_PA_CECOD (1.6)
DFlu_PA_Ne6qpgD2 A: a/b three-layered sandwichesX: Restriction endonuclease-likeH: Restriction endonuclease-like (From Topology)T: Restriction endonuclease-likeF: Flu_PA_NECOD (1.6)
AFlu_PA_Ce6qpgA1 A: a+b complex topologyX: Polymerase acidic protein (From Topology)H: Polymerase acidic protein (From Topology)T: Polymerase acidic proteinF: Flu_PA_CECOD (1.6)
AFlu_PA_Ne6qpgA2 A: a/b three-layered sandwichesX: Restriction endonuclease-likeH: Restriction endonuclease-like (From Topology)T: Restriction endonuclease-likeF: Flu_PA_NECOD (1.6)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
M, N, O, P
Heavy ChainIGHV3 -polymerase acidic protein | rna-directed rna polymerase catalytic subunitSAbDab (2026-01-23)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
M, N, O, P
Nanobody NB8205---
C, F, I, L
Polymerase basic protein 2
B, E, H, K
RNA-directed RNA polymerase catalytic subunit
A, D, G, J
Polymerase acidic protein