Structure of PDB 1p18 Chain B Binding Site BS02

Receptor Information
>1p18 Chain B (length=194) Species: 5693 (Trypanosoma cruzi) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
YEFAEKILFTEEEIRTRIKEVAKRIADDYKGKGLRPYVNPLVLISVLRGS
FMFTADLCRALCDFNVPVRMEFICVSSYGEGLTSSGQVRMLLDTRHSIEG
HHVLIVEDIVDTALTLNYLYHMYFTRRPASLKTVVLLDKREGRRVPFSAD
YVVANIPNAFVIGYGLDYDDTYRELRDIVVLRPEVYAEREAARQ
Ligand information
Ligand IDPRP
InChIInChI=1S/C5H13O14P3/c6-3-2(1-16-20(8,9)10)17-5(4(3)7)18-22(14,15)19-21(11,12)13/h2-7H,1H2,(H,14,15)(H2,8,9,10)(H2,11,12,13)/t2-,3-,4-,5-/m1/s1
InChIKeyPQGCEDQWHSBAJP-TXICZTDVSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0C(C1C(C(C(O1)OP(=O)(O)OP(=O)(O)O)O)O)OP(=O)(O)O
OpenEye OEToolkits 1.5.0C([C@@H]1[C@H]([C@H]([C@H](O1)O[P@@](=O)(O)OP(=O)(O)O)O)O)OP(=O)(O)O
CACTVS 3.341O[CH]1[CH](O)[CH](O[CH]1CO[P](O)(O)=O)O[P](O)(=O)O[P](O)(O)=O
ACDLabs 10.04O=P(OC1OC(C(O)C1O)COP(=O)(O)O)(O)OP(=O)(O)O
CACTVS 3.341O[C@H]1[C@@H](O)[C@H](O[C@@H]1CO[P](O)(O)=O)O[P@](O)(=O)O[P](O)(O)=O
FormulaC5 H13 O14 P3
Name1-O-pyrophosphono-5-O-phosphono-alpha-D-ribofuranose;
ALPHA-PHOSPHORIBOSYLPYROPHOSPHORIC ACID;
1-O-pyrophosphono-5-O-phosphono-alpha-D-ribose;
1-O-pyrophosphono-5-O-phosphono-D-ribose;
1-O-pyrophosphono-5-O-phosphono-ribose
ChEMBL
DrugBankDB01632
ZINCZINC000008215630
PDB chain1p18 Chain B Residue 811 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1p18 Interactions at the dimer interface influence the relative efficiencies for purine nucleotide synthesis and pyrophosphorolysis in a phosphoribosyltransferase
Resolution2.0 Å
Binding residue
(original residue number in PDB)		R52 S81 Y82 E111 D112 I113 D115 T116 A117 T119 R177
Binding residue
(residue number reindexed from 1)		R48 S77 Y78 E107 D108 I109 D111 T112 A113 T115 R173
Annotation score5
Enzymatic activity
Catalytic site (original residue number in PDB) E111 D112 D115 F164 R177
Catalytic site (residue number reindexed from 1) E107 D108 D111 F160 R173
Enzyme Commision number 2.4.2.8: hypoxanthine phosphoribosyltransferase.
Gene Ontology
Molecular Function
GO:0000166 nucleotide binding
GO:0000287 magnesium ion binding
GO:0004422 hypoxanthine phosphoribosyltransferase activity
GO:0016757 glycosyltransferase activity
GO:0046872 metal ion binding
GO:0052657 guanine phosphoribosyltransferase activity
Biological Process
GO:0006166 purine ribonucleoside salvage
GO:0006178 guanine salvage
GO:0032263 GMP salvage
GO:0032264 IMP salvage
GO:0046100 hypoxanthine metabolic process
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1p18, PDBe:1p18, PDBj:1p18
PDBsum1p18
PubMed14698288
UniProtQ4DRC4

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