Annotations: 8TFR

Apo Fab from C10-S66K antibody

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody 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)
C [auth B]	Serpin	e8tfrB1	A: alpha arrays	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Serpin	ECOD (v295)
B [auth A]	Ras	e8tfrA1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Ras	ECOD (v295)
A [auth C]	Ras	e8tfrC1	A: alpha arrays	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Ras	ECOD (v295)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A [auth C]	3.10.20.10	Alpha Beta	Roll	Ubiquitin-like (UB roll)		CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth B]	Light Chain	IGLV3	Lambda	-	SAbDab (2026-06-26)
B [auth A]	Heavy Chain	IGHV4	-	-	SAbDab (2026-06-26)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth B]	Light chain from Fab of C10_S66K antibody	-	-	-
B [auth A]	Heavy chain from Fab of C10_S66K antibody	-	-	-
A [auth C]	Immunoglobulin G-binding protein G	protein-containing complex binding binding immunoglobulin binding IgG binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth C]	IPR009063	Immunoglobulin/albumin-binding domain superfamily	Homologous Superfamily
A [auth C]	IPR005877	YSIRK Gram-positive signal peptide	Domain
A [auth C]	IPR000724	IgG-binding B	Domain
A [auth C]	IPR019950	M protein-type anchor motif	Conserved Site
A [auth C]	IPR035152	GA-like domain	Domain
A [auth C]	IPR019931	LPXTG cell wall anchor motif	Conserved Site

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.