7T0I | pdb_00007t0i

Crystal structure of S25-39 Fab Unliganded 3

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
SAbDab Antibody Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
H [auth E]	SBP_bac_11	e7t0iE1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)
F [auth C]	SBP_bac_11	e7t0iC1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)
D [auth A]	SBP_bac_11	e7t0iA1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)
B [auth L]	SBP_bac_11	e7t0iL1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)
G [auth F]	SBP_bac_11	e7t0iF1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)
E [auth D]	SBP_bac_11	e7t0iD1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)
C [auth B]	SBP_bac_11	e7t0iB1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)
A [auth H]	SBP_bac_11	e7t0iH1	A: a/b three-layered sandwiches	X: RNase A-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: SBP_bac_11	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
H [auth E]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F [auth C]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
G [auth F]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
E [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
A [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L], D [auth A], F [auth C], H [auth E]	Light Chain	IGKV8	Kappa	-	SAbDab (2026-03-27)
A [auth H], C [auth B], E [auth D], G [auth F]	Heavy Chain	IGHV7	-	-	SAbDab (2026-03-27)

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.