4TKY

The complex structure of E. coli DsbA bound to a peptide at the DsbA/DsbB interface

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Thioredoxin-like	8035549	3000031	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Thioredoxin-like	8035549	3000031	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Thioredoxin-like	8035549	3000031	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Thioredoxin-like	8035549	3000031	SCOP2B (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	DsbA_DsbA	e4tkyA1	A: alpha arrays	X: Insertion subdomain in DsbA-like	H: Insertion subdomain in DsbA-like (From Topology)	T: Insertion subdomain in DsbA-like	F: DsbA_DsbA	ECOD (1.6)
A	Thioredoxin_1	e4tkyA2	A: a+b three layers	X: Thioredoxin-like	H: Thioredoxin-like (From Topology)	T: Thioredoxin-like	F: Thioredoxin_1	ECOD (1.6)
B	DsbA_DsbA	e4tkyB1	A: alpha arrays	X: Insertion subdomain in DsbA-like	H: Insertion subdomain in DsbA-like (From Topology)	T: Insertion subdomain in DsbA-like	F: DsbA_DsbA	ECOD (1.6)
B	Thioredoxin_1	e4tkyB2	A: a+b three layers	X: Thioredoxin-like	H: Thioredoxin-like (From Topology)	T: Thioredoxin-like	F: Thioredoxin_1	ECOD (1.6)
C	DsbA_DsbA	e4tkyC1	A: alpha arrays	X: Insertion subdomain in DsbA-like	H: Insertion subdomain in DsbA-like (From Topology)	T: Insertion subdomain in DsbA-like	F: DsbA_DsbA	ECOD (1.6)
C	Thioredoxin_1	e4tkyC2	A: a+b three layers	X: Thioredoxin-like	H: Thioredoxin-like (From Topology)	T: Thioredoxin-like	F: Thioredoxin_1	ECOD (1.6)
D	DsbA_DsbA	e4tkyD1	A: alpha arrays	X: Insertion subdomain in DsbA-like	H: Insertion subdomain in DsbA-like (From Topology)	T: Insertion subdomain in DsbA-like	F: DsbA_DsbA	ECOD (1.6)
D	Thioredoxin_1	e4tkyD2	A: a+b three layers	X: Thioredoxin-like	H: Thioredoxin-like (From Topology)	T: Thioredoxin-like	F: Thioredoxin_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)
B	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)
C	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)
D	3.40.30.10	Alpha Beta	3-Layer(aba) Sandwich	Glutaredoxin	Glutaredoxin	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01323	DSBA-like thioredoxin domain (DSBA)	DSBA-like thioredoxin domain	This family contains a diverse set of proteins with a thioredoxin-like structure Pfam:PF00085. This family also includes 2-hydroxychromene-2-carboxylate (HCCA) isomerase enzymes catalyse one step in prokaryotic polyaromatic hydrocarbon (PAH) cataboli ...	This family contains a diverse set of proteins with a thioredoxin-like structure Pfam:PF00085. This family also includes 2-hydroxychromene-2-carboxylate (HCCA) isomerase enzymes catalyse one step in prokaryotic polyaromatic hydrocarbon (PAH) catabolic pathways [2,3,4]. This family also contains members with functions other than HCCA isomerisation, such as Kappa family GSTs (e.g. Swiss:P24473), whose similarity to HCCA isomerases was not previously recognised. The sequence Swiss:O07298 has been annotated as a dioxygenase but is almost certainly an HCCA isomerase enzyme. Similarly, the sequence Swiss:Q9ZI67 has been annotated as a dehydrogenase, but is most probably also an HCCA isomerase enzyme. In addition, the Rhizobium leguminosarum Swiss:Q52782 protein has been annotated as a putative glycerol-3-phosphate transfer protein, but is also most likely to be an HCCA isomerase enzyme (see [5]).	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Thiol:disulfide interchange protein DsbA	isomerase activity intramolecular oxidoreductase activity catalytic activity, acting on a protein intramolecular oxidoreductase activity, transposing S-S bonds catalytic activity protein disulfide isomerase activity oxidoreductase activity, acting on a sulfur group of donors disulfide oxidoreductase activity oxidoreductase activity protein-disulfide reductase activity	cellular response to stimulus cellular response to antibiotic cellular response to chemical stimulus response to stimulus response to chemical cellular process response to antibiotic	outer membrane-bounded periplasmic space cell envelope periplasmic space cellular anatomical entity
E [auth F], F [auth E], G, H	PRO-PHE-ALA-THR-CYS-ASP-SER	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR050824	Bacterial Thiol:disulfide Interchange Protein DsbA	Family
A, B, C, D	IPR023205	Thiol:disulphide interchange protein DsbA/DsbL	Family
A, B, C, D	IPR001853	DSBA-like thioredoxin domain	Domain
A, B, C, D	IPR017937	Thioredoxin, conserved site	Conserved Site
A, B, C, D	IPR013766	Thioredoxin domain	Domain
A, B, C, D	IPR036249	Thioredoxin-like superfamily	Homologous Superfamily

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.