2WK5 | pdb_00002wk5

Structural features of native human thymidine phosphorylase and in complex with 5-iodouracil

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
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d2wk5d1	All alpha proteins	Methionine synthase domain-like	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d2wk5d2	Alpha and beta proteins (a/b)	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D	d2wk5d3	Alpha and beta proteins (a+b)	alpha/beta-Hammerhead	Pyrimidine nucleoside phosphorylase C-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d2wk5c1	All alpha proteins	Methionine synthase domain-like	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d2wk5c2	Alpha and beta proteins (a/b)	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C	d2wk5c3	Alpha and beta proteins (a+b)	alpha/beta-Hammerhead	Pyrimidine nucleoside phosphorylase C-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2wk5b1	All alpha proteins	Methionine synthase domain-like	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2wk5b2	Alpha and beta proteins (a/b)	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2wk5b3	Alpha and beta proteins (a+b)	alpha/beta-Hammerhead	Pyrimidine nucleoside phosphorylase C-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2wk5a1	All alpha proteins	Methionine synthase domain-like	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2wk5a2	Alpha and beta proteins (a/b)	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
A	d2wk5a3	Alpha and beta proteins (a+b)	alpha/beta-Hammerhead	Pyrimidine nucleoside phosphorylase C-terminal domain	automated matches	automated matches	HUMAN (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Pyrimidine nucleoside phosphorylase C-terminal domain	8041940	3000876	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	8041939	3001630	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	8041938	3000348	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	8041938	3000348	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Pyrimidine nucleoside phosphorylase C-terminal domain	8041940	3000876	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	8041939	3001630	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	8041939	3001630	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Pyrimidine nucleoside phosphorylase C-terminal domain	8041940	3000876	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	8041938	3000348	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain	8041939	3001630	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Nucleoside phosphorylase/phosphoribosyltransferase N-terminal domain	8041938	3000348	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Pyrimidine nucleoside phosphorylase C-terminal domain	8041940	3000876	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		e2wk5D1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: YgbB	F:	ECOD (20:10:01)
C		e2wk5C1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: YgbB	F:	ECOD (20:10:01)
B		e2wk5B1	A: HTH	X: HTH	H: tetra-helical, lambda repressor-like	T: YgbB	F:	ECOD (20:10:01)
A		e2wk5A1	A: Alpha-beta plaits	X: FAD-dependent thiol oxidase	H: FAD-dependent thiol oxidase	T: Peptidase_M4,Peptidase_M4_C	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	1.20.970.10	Mainly Alpha	Up-down Bundle	Transferase, Pyrimidine Nucleoside Phosphorylase	Chain A, domain 3	CATH (4.3.0)
D	3.40.1030.10	Alpha Beta	3-Layer(aba) Sandwich	Pyrimidine Nucleoside Phosphorylase	Chain A, domain 2	CATH (4.3.0)
D	3.90.1170.30	Alpha Beta	Alpha-Beta Complex	Aldehyde Oxidoreductase	domain 3	CATH (4.3.0)
C	1.20.970.10	Mainly Alpha	Up-down Bundle	Transferase, Pyrimidine Nucleoside Phosphorylase	Chain A, domain 3	CATH (4.3.0)
C	3.40.1030.10	Alpha Beta	3-Layer(aba) Sandwich	Pyrimidine Nucleoside Phosphorylase	Chain A, domain 2	CATH (4.3.0)
C	3.90.1170.30	Alpha Beta	Alpha-Beta Complex	Aldehyde Oxidoreductase	domain 3	CATH (4.3.0)
B	1.20.970.10	Mainly Alpha	Up-down Bundle	Transferase, Pyrimidine Nucleoside Phosphorylase	Chain A, domain 3	CATH (4.3.0)
B	3.40.1030.10	Alpha Beta	3-Layer(aba) Sandwich	Pyrimidine Nucleoside Phosphorylase	Chain A, domain 2	CATH (4.3.0)
B	3.90.1170.30	Alpha Beta	Alpha-Beta Complex	Aldehyde Oxidoreductase	domain 3	CATH (4.3.0)
A	1.20.970.10	Mainly Alpha	Up-down Bundle	Transferase, Pyrimidine Nucleoside Phosphorylase	Chain A, domain 3	CATH (4.3.0)
A	3.40.1030.10	Alpha Beta	3-Layer(aba) Sandwich	Pyrimidine Nucleoside Phosphorylase	Chain A, domain 2	CATH (4.3.0)
A	3.90.1170.30	Alpha Beta	Alpha-Beta Complex	Aldehyde Oxidoreductase	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF00591	Glycosyl transferase family, a/b domain (Glycos_transf_3)	Glycosyl transferase family, a/b domain	This family includes anthranilate phosphoribosyltransferase (TrpD), thymidine phosphorylase. All these proteins can transfer a phosphorylated ribose substrate.	Domain
A, B, C, D	PF02885	Glycosyl transferase family, helical bundle domain (Glycos_trans_3N)	Glycosyl transferase family, helical bundle domain	This family includes anthranilate phosphoribosyltransferase (TrpD), thymidine phosphorylase. All these proteins can transfer a phosphorylated ribose substrate.	Domain
A, B, C, D	PF07831	Pyrimidine nucleoside phosphorylase C-terminal domain (PYNP_C)	Pyrimidine nucleoside phosphorylase C-terminal domain	This domain is found at the C-terminal end of the large alpha/beta domain making up various pyrimidine nucleoside phosphorylases [1,2]. It has slightly different conformations in different members of this family. For example, in pyrimidine nucleoside ...	This domain is found at the C-terminal end of the large alpha/beta domain making up various pyrimidine nucleoside phosphorylases [1,2]. It has slightly different conformations in different members of this family. For example, in pyrimidine nucleoside phosphorylase (PYNP, Swiss:P77826) there is an added three-stranded anti-parallel beta sheet as compared to other members of the family, such as E. coli thymidine phosphorylase (TP, Swiss:P07650) [1]. The domain contains an alpha/ beta hammerhead fold and residues in this domain seem to be important in formation of the homodimer [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	THYMIDINE PHOSPHORYLASE	1,4-alpha-oligoglucan phosphorylase activity glycosyltransferase activity transferase activity hexosyltransferase activity catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity 1,4-alpha-oligoglucan phosphorylase activity glycosyltransferase activity transferase activity hexosyltransferase activity catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity molecular function activator activity molecular function regulator activity signaling receptor regulator activity growth factor activity receptor ligand activity signaling receptor activator activity pentosyltransferase activity thymidine phosphorylase activity pyrimidine-nucleoside phosphorylase activity	chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion developmental process cellular developmental process cell differentiation cellular process multicellular organismal process blood vessel morphogenesis tube development angiogenesis chemotaxis response to stimulus taxis response to chemical response to external stimulus locomotion developmental process cellular developmental process cell differentiation cellular process multicellular organismal process blood vessel morphogenesis tube development angiogenesis vasculature development circulatory system development anatomical structure morphogenesis multicellular organism development tube morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development blood vessel development system development pyrimidine deoxyribonucleotide catabolic process pyrimidine deoxyribonucleoside monophosphate catabolic process catabolic process deoxyribonucleoside monophosphate catabolic process deoxyribonucleotide catabolic process pyrimidine deoxyribonucleotide metabolic process pyrimidine-containing compound catabolic process carbohydrate derivative metabolic process organophosphate catabolic process nucleoside phosphate catabolic process deoxyribose phosphate catabolic process pyrimidine nucleotide metabolic process dTMP catabolic process pyrimidine deoxyribonucleoside monophosphate metabolic process nucleobase-containing compound metabolic process pyrimidine nucleotide catabolic process deoxyribonucleotide metabolic process nucleobase-containing small molecule metabolic process dTMP metabolic process phosphate-containing compound metabolic process small molecule metabolic process nucleoside monophosphate metabolic process phosphorus metabolic process nucleotide catabolic process pyrimidine nucleoside monophosphate catabolic process nucleoside phosphate metabolic process pyrimidine nucleoside monophosphate metabolic process carbohydrate derivative catabolic process pyrimidine-containing compound metabolic process nucleoside monophosphate catabolic process 2'-deoxyribonucleotide metabolic process primary metabolic process nucleotide metabolic process nucleobase-containing compound catabolic process organophosphate metabolic process metabolic process pyrimidine nucleobase metabolic process nucleobase metabolic process pyrimidine nucleoside metabolic process nucleoside metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR000053	Thymidine/pyrimidine-nucleoside phosphorylase	Family
A, B, C, D	IPR035902	Nucleoside phosphorylase/phosphoribosyltransferase catalytic domain superfamily	Homologous Superfamily
A, B, C, D	IPR036320	Glycosyl transferase family 3, N-terminal domain superfamily	Homologous Superfamily
A, B, C, D	IPR036566	Pyrimidine nucleoside phosphorylase-like, C-terminal domain superfamily	Homologous Superfamily
A, B, C, D	IPR000312	Glycosyl transferase, family 3	Domain
A, B, C, D	IPR017872	Pyrimidine-nucleoside phosphorylase, conserved site	Conserved Site
A, B, C, D	IPR017459	Glycosyl transferase family 3, N-terminal domain	Domain
A, B, C, D	IPR013102	Pyrimidine nucleoside phosphorylase, C-terminal	Domain
A, B, C, D	IPR018090	Pyrimidine-nucleoside phosphorylase, bacterial/eukaryotic	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B, C, D	Pharos: P19971	mitochondrial DNA depletion syndrome 1 esophageal squamous cell carcinoma malignant colon neoplasm gastric cancer malignant pancreatic neoplasm Neoplasm Metastasis progressive external ophthalmoplegia sarcomatoid carcinoma urinary bladder cancer carcinoma colorectal cancer leukodystrophy malignant ependymoma mitochondrial DNA depletion syndrome 4b benign colon neoplasm mitochondrial DNA depletion syndrome 1 esophageal squamous cell carcinoma malignant colon neoplasm gastric cancer malignant pancreatic neoplasm Neoplasm Metastasis progressive external ophthalmoplegia sarcomatoid carcinoma urinary bladder cancer carcinoma colorectal cancer leukodystrophy malignant ependymoma mitochondrial DNA depletion syndrome 4b benign colon neoplasm muscle tissue disease Charcot-Marie-Tooth disease colorectal carcinoma diffuse large B-cell lymphoma gastric neoplasm juvenile dermatomyositis lung cancer mitochondrial DNA depletion syndrome 8a atopic eczema muscular disease colonic neoplasm pancreatic neoplasm psoriasis ulcerative colitis hereditary diffuse gastric adenocarcinoma urinary bladder neoplasm large cell medulloblastoma mitochondrial neurogastrointestinal encephalomyopathy B-cell chronic lymphocytic leukemia myopathy peripheral neuropathy cutaneous lupus erythematosus rhabdomyolysis undifferentiated carcinoma interstitial cystitis X-linked mixed deafness with perilymphatic gusher

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.