3JQA

Crystal structure of pteridine reductase 1 (PTR1) from Trypanosoma brucei in ternary complex with cofactor (NADP+) and inhibitor 2-amino-1,9-dihydro-6H-purine-6-thione (DX4)

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
Protein Modification Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d3jqab_	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)
C	d3jqac_	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)
D	d3jqad_	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)
A	d3jqaa_	Alpha and beta proteins (a/b)	NAD(P)-binding Rossmann-fold domains	NAD(P)-binding Rossmann-fold domains	automated matches	automated matches	(Trypanosoma brucei ) [TaxId: 5691 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	SDR-like	8099562	3000038	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	SDR-like	8099562	3000038	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	SDR-like	8099562	3000038	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	SDR-like	8099562	3000038	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)
B	adh_short_C2	e3jqaB1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: adh_short_C2	ECOD (1.6)
C	adh_short_C2	e3jqaC1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: adh_short_C2	ECOD (1.6)
D	adh_short_C2	e3jqaD1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: adh_short_C2	ECOD (1.6)
A	adh_short_C2	e3jqaA1	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NAD(P)-binding Rossmann-fold domains	F: adh_short_C2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
C	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
D	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, C	PF13561	Enoyl-(Acyl carrier protein) reductase (adh_short_C2)	Enoyl-(Acyl carrier protein) reductase	This domain is found in Enoyl-(Acyl carrier protein) reductases.	Domain
D	PF13561	Enoyl-(Acyl carrier protein) reductase (adh_short_C2)	Enoyl-(Acyl carrier protein) reductase	This domain is found in Enoyl-(Acyl carrier protein) reductases.	Domain
A	PF13561	Enoyl-(Acyl carrier protein) reductase (adh_short_C2)	Enoyl-(Acyl carrier protein) reductase	This domain is found in Enoyl-(Acyl carrier protein) reductases.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, C	Pteridine reductase 1	oxidoreductase activity catalytic activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity, acting on the CH-NH group of donors, NAD or NADP as acceptor pteridine reductase activity oxidoreductase activity, acting on the CH-NH group of donors	-	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol
D	Pteridine reductase 1	oxidoreductase activity catalytic activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity, acting on the CH-NH group of donors, NAD or NADP as acceptor pteridine reductase activity oxidoreductase activity, acting on the CH-NH group of donors	-	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol
A	Pteridine reductase 1	oxidoreductase activity catalytic activity binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding oxidoreductase activity, acting on the CH-NH group of donors, NAD or NADP as acceptor pteridine reductase activity oxidoreductase activity, acting on the CH-NH group of donors	-	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, C	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
B, C	IPR002347	Short-chain dehydrogenase/reductase SDR	Family
B, C	IPR014058	Pteridine reductase	Family
B, C	IPR020904	Short-chain dehydrogenase/reductase, conserved site	Conserved Site
D	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
D	IPR002347	Short-chain dehydrogenase/reductase SDR	Family
D	IPR014058	Pteridine reductase	Family
D	IPR020904	Short-chain dehydrogenase/reductase, conserved site	Conserved Site
A	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A	IPR002347	Short-chain dehydrogenase/reductase SDR	Family
A	IPR014058	Pteridine reductase	Family
A	IPR020904	Short-chain dehydrogenase/reductase, conserved site	Conserved Site

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B, C	CSX	Parent Component: CYS RESID: AA0451 PSI-MOD : 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380
D	CSX	Parent Component: CYS RESID: AA0451 , AA0451 PSI-MOD : 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380 , 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380

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.