9CBN | pdb_00009cbn

HAstV1 spike in complex with neutralizing Fabs 3H4 and 3B4

External Resource: Annotation

SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
F, H	Light Chain	IGLV1	Lambda	structural protein	SAbDab (2025-12-19)
E, G	Heavy Chain	IGHV2	-	structural protein	SAbDab (2025-12-19)
B	Light Chain	IGKV5	Kappa	structural protein	SAbDab (2025-12-19)
A	Heavy Chain	IGHV1	-	structural protein	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C, D	PF12226	Turkey astrovirus capsid protein (Astro_capsid_p)	Turkey astrovirus capsid protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
F, H	HAstV1 neutralizing Fab 3H4 lambda chain	-	-	-
E, G	HAstV1 neutralizing Fab 3H4 heavy chain	-	-	-
C, D	Structural protein	-	import into cell receptor-mediated endocytosis of virus by host cell biological process involved in interspecies interaction between organisms transport viral life cycle establishment of localization vesicle-mediated transport biological process involved in interaction with host biological process involved in symbiotic interaction localization symbiont entry into host cell clathrin-dependent endocytosis viral process symbiont entry into host import into cell receptor-mediated endocytosis of virus by host cell biological process involved in interspecies interaction between organisms transport viral life cycle establishment of localization vesicle-mediated transport biological process involved in interaction with host biological process involved in symbiotic interaction localization symbiont entry into host cell clathrin-dependent endocytosis viral process symbiont entry into host cellular process clathrin-dependent endocytosis of virus by host cell receptor-mediated endocytosis endocytosis endocytosis involved in viral entry into host cell	viral capsid T=3 icosahedral viral capsid icosahedral viral capsid virion component host extracellular space host cellular component cellular anatomical structure other organism part
B	HAstV1 neutralizing Fab 3B4 kappa chain	-	-	-
A	HAstV1 neutralizing Fab 3B4 heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C, D	IPR004337	Astrovirus capsid protein, inner core domain	Domain
C, D	IPR029053	Viral coat protein subunit	Homologous Superfamily
C, D	IPR022027	Turkey astrovirus capsid protein	Family

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.