2LTQ | pdb_00002ltq

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	DsbB-like	8033051	3001302	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	DsbB-like	8033051	3001302	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
F	Rrf2	e2ltqF1	A: alpha bundles	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (develop294)
C	RimK	e2ltqC1	A: alpha bundles	X: Ribonuclease H-like	H: Ribonuclease H-like	T: Ribonuclease H-like	F: RimK	ECOD (develop294)
E	V-set	e2ltqE5	A: alpha bundles	X: Subtilisin-like	H: Subtilisin-like	T: Subtilisin-like	F: V-set	ECOD (develop294)
B	RimK	e2ltqB1	A: alpha bundles	X: Ribonuclease H-like	H: Ribonuclease H-like	T: Ribonuclease H-like	F: RimK	ECOD (develop294)
D	Melibiase_C	e2ltqD2	A: alpha bundles	X: Fusion glycoprotein F2	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: Melibiase_C	ECOD (develop294)
A	RimK	e2ltqA1	A: alpha bundles	X: Ribonuclease H-like	H: Ribonuclease H-like	T: Ribonuclease H-like	F: RimK	ECOD (develop294)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
F	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)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	1.20.1550.10	Mainly Alpha	Up-down Bundle	Bromodomain-like	DsbB-like	CATH (4.3.0)
A	1.20.1550.10	Mainly Alpha	Up-down Bundle	Bromodomain-like	DsbB-like	CATH (4.3.0)

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
C, F	FAB FRAGMENT	VH-CH1	Mus musculus (house mouse)	IGHV5-12-101, IGHJ401, IGHG2A01, IGHG2A02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-2A_KAPPA	IMGT (202610-0)
B, E	FAB FRAGMENT	L-KAPPA	Mus musculus (house mouse)	IGKV8-2101, IGKJ102, IGKJ201, IGKC01, IGKC*02	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-2A_KAPPA	IMGT (202610-0)

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C, F	Heavy Chain	IGHV5	-	disulfide bond formation protein b	SAbDab (2026-03-20)
B, E	Light Chain	IGKV8	Kappa	disulfide bond formation protein b	SAbDab (2026-03-20)

Chains	Accession	Name	Description	Comments	Source
A, D	PF02600	Disulfide bond formation protein DsbB (DsbB)	Disulfide bond formation protein DsbB	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, F	Fab fragment heavy chain	-	-	-
B, E	Fab fragment light chain	-	-	-
A, D	Disulfide bond formation protein B	binding quinone binding ubiquinone binding small molecule binding oxidoreductase activity, acting on a sulfur group of donors oxidoreductase activity catalytic activity oxidoreductase activity, acting on a sulfur group of donors, quinone or similar compound as acceptor electron transfer activity disulfide oxidoreductase activity catalytic activity, acting on a protein protein-disulfide reductase activity	response to stimulus response to stress response to heat response to abiotic stimulus response to temperature stimulus protein folding biosynthetic process metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process response to stimulus response to stress response to heat response to abiotic stimulus response to temperature stimulus protein folding biosynthetic process metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process gene expression macromolecule biosynthetic process protein maturation	cell periphery cellular anatomical structure plasma membrane membrane

Chains	Accession	Name	Type
A, D	IPR003752	Disulphide bond formation protein DsbB/BdbC	Family
A, D	IPR022920	Disulphide bond formation protein DsbB	Family
A, D	IPR050183	Disulfide bond formation protein B	Family
A, D	IPR023380	DsbB-like superfamily	Homologous Superfamily

Chains	External Link	Type	Class	Superfamily	Family
A, D	OPM	Transmembrane	Alpha-helical polytopic	Disulfide bond oxidoreductase-B (DsbB)	Disulfide bond oxidoreductase-B (DsbB)

Chains	External Link	Comment
A, D	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Oxidoreductases	DsbB in POPE lipid bilayer

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.

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