5MX3 | pdb_00005mx3

Structure of DC8E8 Fab crystallized at pH 8.5

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Modification Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D [auth B]	d5mx3b2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
D [auth B]	d5mx3b1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth L]	d5mx3l2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth L]	d5mx3l1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C [auth A]	d5mx3a1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C [auth A]	d5mx3a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A [auth H]	d5mx3h1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A [auth H]	d5mx3h2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D [auth B]	Sulfotransfer_2	e5mx3B1	A: a/b three-layered sandwiches	X: MocoBD/DmpA-related	H: ferredoxin-like domain in periplasmic region of MacB	T: SH3	F: Sulfotransfer_2	ECOD (v294.1)
B [auth L]	Sulfotransfer_2	e5mx3L1	A: a/b three-layered sandwiches	X: MocoBD/DmpA-related	H: ferredoxin-like domain in periplasmic region of MacB	T: SH3	F: Sulfotransfer_2	ECOD (v294.1)
C [auth A]	Sulfotransfer_2	e5mx3A1	A: a/b three-layered sandwiches	X: MocoBD/DmpA-related	H: ferredoxin-like domain in periplasmic region of MacB	T: SH3	F: Sulfotransfer_2	ECOD (v294.1)
A [auth H]	Sulfotransfer_2	e5mx3H1	A: a/b three-layered sandwiches	X: MocoBD/DmpA-related	H: ferredoxin-like domain in periplasmic region of MacB	T: SH3	F: Sulfotransfer_2	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth B]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C [auth A]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth H]	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
B [auth L], D [auth B]	Fab DC8E8	L-KAPPA	Mus musculus (house mouse)	IGKV8-2101, IGKJ101, IGKJ201, IGKJ301, IGKC01, IGKC02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202612-0)
A [auth H], C [auth A]	Fab DC8E8	VH-CH1	Mus musculus (house mouse)	IGHV1-7501, IGHJ401, IGHG1*02	V-DOMAIN VH, C-DOMAIN CH1	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
B [auth L], D [auth B]	Light Chain	IGKV8	Kappa	-	SAbDab (2026-03-27)
A [auth H], C [auth A]	Heavy Chain	IGHV1	-	-	SAbDab (2026-03-27)

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A [auth H], C [auth A]	PCA	Parent Component: GLN RESID: AA0031 PSI-MOD : 2-pyrrolidone-5-carboxylic acid (Gln) MOD:00040 , 2-pyrrolidone-5-carboxylic acid (Glu) MOD:00420

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.