1L6P

N-terminal of DsbD (residues 20-144) from E. coli.

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Structure Motif: Primary M-CSA Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1l6pa_	All beta proteins	Immunoglobulin-like beta-sandwich	Thiol:disulfide interchange protein DsbD, N-terminal domain (DsbD-alpha)	Thiol:disulfide interchange protein DsbD, N-terminal domain (DsbD-alpha)	Thiol:disulfide interchange protein DsbD, N-terminal domain (DsbD-alpha)	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Thiol:disulfide interchange protein DsbD N-terminal domain (DsbD-alpha)	8055352	4007564	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Thiol:disulfide interchange protein DsbD N-terminal domain (DsbD-alpha)	8055353	3002068	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DsbC	e1l6pA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: DsbC	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.1250	Mainly Beta	Sandwich	Immunoglobulin-like	Thiol:disulfide interchange protein DsbD, N-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF11412	Thiol:disulfide interchange protein DsbD, N-terminal (DsbD_N)	Thiol:disulfide interchange protein DsbD, N-terminal	This entry represents the N-terminal domain of DsbD, a transmembrane electron transporter [1-3]. DsbD binds to a DsbC dimer and selectively activates it using electrons from the cytoplasm. The N-terminal domain of DsbD (DsbDN) is capable of forming d ...	This entry represents the N-terminal domain of DsbD, a transmembrane electron transporter [1-3]. DsbD binds to a DsbC dimer and selectively activates it using electrons from the cytoplasm. The N-terminal domain of DsbD (DsbDN) is capable of forming disulfides with oxidized DsbC, DsbE, or DsbG as well as with reduced DsbD [1-3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Thiol:disulfide interchange protein dsbD	oxidoreductase activity, acting on a sulfur group of donors disulfide oxidoreductase activity oxidoreductase activity catalytic activity, acting on a protein protein-disulfide reductase activity catalytic activity protein-disulfide reductase (NAD(P)H) activity oxidoreductase activity, acting on a sulfur group of donors, NAD(P) as acceptor electron transfer activity	response to copper ion response to stimulus response to metal ion response to chemical response to inorganic substance cell redox homeostasis cellular homeostasis homeostatic process cytochrome complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly response to copper ion response to stimulus response to metal ion response to chemical response to inorganic substance cell redox homeostasis cellular homeostasis homeostatic process cytochrome complex assembly cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein-containing complex assembly cellular process cellular component organization or biogenesis	cell periphery plasma membrane membrane cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR028250	Thiol:disulfide interchange protein DsbD, N-terminal domain	Domain
A	IPR013766	Thioredoxin domain	Domain
A	IPR003834	Cytochrome C biogenesis protein, transmembrane domain	Domain
A	IPR012336	Thioredoxin-like fold	Domain
A	IPR022910	Thiol:disulphide interchange protein DsbD	Family
A	IPR017937	Thioredoxin, conserved site	Conserved Site
A	IPR035671	DsbD gamma	Domain
A	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily
A	IPR036929	Thiol:disulfide interchange protein DsbD, N-terminal domain superfamily	Homologous Superfamily

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

Chains	Enzyme Name	Description	Catalytic Residues
A	protein-disulfide reductase M-CSA #627	Disulfide bond (Dsb) proteins are required to form disulphide bonds which enable the folding of secreted proteins within the periplasm of Escherichia coli. DsbA catalyses the oxidation of a pair of cysteine sulfhydryl groups, forming disulphide bonds. Electrons generated from the oxidation are transferred from DsbA to DsbB then into the electron transport chain. DsbC, DsbD, DsbE and DsbG repair improperly formed disulfides. The N terminal region of the thioloxidoreductase enzyme DsbD from E. coli is able to reduce the disulphide bond in DsbC and thus participates in the pathway whereby electrons from NADPH are used to break incorrectly formed disulphides in proteins in the periplasm. It displays a unique Ig fold, but still shows homology with the thioloxidoreductase family.	Defined by 6 residues: TYR:A-42ASP:A-68PHE:A-70TYR:A-71CYS:A-103CYS:A-109 \| Explore in 3D: M-CSA Motif Definition Search M-CSA Motif

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.