3JQA | pdb_00003jqa

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)
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)
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)
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)
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)
D	SCOP2B Superfamily	SDR-like	8099562	3000038	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	SDR-like	8099562	3000038	SCOP2B (2022-06-29)
B	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)
D		e3jqaD1	A: Alpha-beta plaits	X: Phage tail protein-like	H: Transmembrane protein 14A	T: adh_short	F:	ECOD (20:10:01)
C		e3jqaC1	A: Alpha-beta plaits	X: Phage tail protein-like	H: Transmembrane protein 14A	T: adh_short	F:	ECOD (20:10:01)
B		e3jqaB1	A: Alpha-beta plaits	X: Phage tail protein-like	H: Transmembrane protein 14A	T: adh_short	F:	ECOD (20:10:01)
A		e3jqaA1	A: Alpha-beta plaits	X: Phage tail protein-like	H: Transmembrane protein 14A	T: adh_short	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	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)
B	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
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
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
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
D	Pteridine reductase 1	oxidoreductase activity catalytic activity binding nucleoside phosphate 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	-	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen
B, C	Pteridine reductase 1	oxidoreductase activity catalytic activity binding nucleoside phosphate 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	-	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen
A	Pteridine reductase 1	oxidoreductase activity catalytic activity binding nucleoside phosphate 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	-	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
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
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
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
D	CSX	Parent Component: CYS RESID: AA0451 PSI-MOD : 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380
B, C	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.