4R7N | pdb_00004r7n

Fab C2E3

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Defensin_1	e4r7nA1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
A	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nA2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
C	Defensin_1	e4r7nC1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
C	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nC2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
E	Defensin_1	e4r7nE1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
E	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nE2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
G	Defensin_1	e4r7nG1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
G	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nG2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
I	Defensin_1	e4r7nI2	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
I	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nI3	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
K	Defensin_1	e4r7nK2	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
K	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nK1	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
M	Defensin_1	e4r7nM1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
M	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nM2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
O	Defensin_1	e4r7nO1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
O	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nO2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
Q	Defensin_1	e4r7nQ2	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
Q	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nQ3	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
S	Defensin_1	e4r7nS1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
S	EF-hand_1, EF-hand_6, EF-hand_7	e4r7nS2	A: a/b three-layered sandwiches	X: Lipocalins/Streptavidin	H: SAM/DNA-glycosylase	T: SAM domain-like	F: EF-hand_1, EF-hand_6, EF-hand_7	ECOD (v294.1)
B	Defensin_1	e4r7nB1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
D	Defensin_1	e4r7nD1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
F	Defensin_1	e4r7nF1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
H	Defensin_1	e4r7nH1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
J	Defensin_1	e4r7nJ1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
L	Defensin_1	e4r7nL1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
N	Defensin_1	e4r7nN1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
P	Defensin_1	e4r7nP1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
R	Defensin_1	e4r7nR1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)
T	Defensin_1	e4r7nT1	A: a/b three-layered sandwiches	X: jelly-roll	H: Acetamidase/Formamidase-like	T: Acetamidase/Formamidase-like	F: Defensin_1	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
G	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
I	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
K	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
M	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
O	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
Q	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
S	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
H	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
J	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
L	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
N	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
P	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
R	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
T	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
A, C, E, G, I A, C, E, G, I, K, M, O, Q, S	Fab C2E3	VH-CH1	Homo sapiens (human)	IGHV4-30-407, IGHJ401, IGHJ402, IGHJ403, IGHG1*03	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202612-0)
B, D, F, H, J B, D, F, H, J, L, N, P, R, T	Fab C2E3	L-KAPPA	Homo sapiens (human)	IGKV6-2102, IGKJ401, IGKJ402, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202612-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A, C, E, G, I A, C, E, G, I, K, M, O, Q, S	Heavy Chain	IGHV4	-	-	SAbDab (2026-03-27)
B, D, F, H, J B, D, F, H, J, L, N, P, R, T	Light Chain	IGKV6	Kappa	-	SAbDab (2026-03-27)