8W5G | pdb_00008w5g

Cryo-EM structure of Qb-Ab7

External Resource: Annotation


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyRNA bacteriophage capsid protein 8035305 3001853 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyRNA bacteriophage capsid protein 8035305 3001853 SCOP2B (2022-06-29)
E [auth C]SCOP2B SuperfamilyRNA bacteriophage capsid protein 8035305 3001853 SCOP2B (2022-06-29)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
C [auth L]Light ChainIGKV9 Kappaminor capsid protein a1 | minor capsid protein a1SAbDab (2025-09-26)
D [auth H]Heavy ChainIGHV1 -minor capsid protein a1 | minor capsid protein a1SAbDab (2025-09-26)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A,
B,
E [auth C]		PF01819Levivirus coat protein (Levi_coat)Levivirus coat proteinThe Levivirus coat protein forms the bacteriophage coat that encapsidates the viral RNA. 180 copies of this protein form the virion shell. The MS2 bacteriophage coat protein controls two distinct processes: sequence-specific RNA encapsidation and re ...The Levivirus coat protein forms the bacteriophage coat that encapsidates the viral RNA. 180 copies of this protein form the virion shell. The MS2 bacteriophage coat protein controls two distinct processes: sequence-specific RNA encapsidation and repression of replicase translation-by binding to an RNA stem-loop structure of 19 nucleotides containing the initiation codon of the replicase gene. The binding of a coat protein dimer to this hairpin shuts off synthesis of the viral replicase, switching the viral replication cycle to virion assembly rather than continued replication [2].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A,
B,
E [auth C]		Minor capsid protein A1 -
C [auth L]Light chain of Ab7---
D [auth H]Heavy chain of Ab7---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A,
B,
E [auth C]		IPR002703Levivirus coat proteinFamily
A,
B,
E [auth C]		IPR015954Bacteriophage RNA-type, capsidHomologous Superfamily