Structure of PDB 1j3i Chain A Binding Site BS02

Receptor Information
>1j3i Chain A (length=223) Species: 5833 (Plasmodium falciparum) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MMEQVCDVFDIYAICACCKVESKNEGKKNEVFNNYTFRGLGNKGVLPWKC
NSLDMKYFCAVTTYVNESKYEKLKYKRCKYLNKETKKLQNVVVMGRTSWE
SIPKKFKPLSNRINVILSRTLKKEDFDEDVYIINKVEDLIVLLGKLNYYK
CFIIGGSVVYQEFLEKKLIKKIYFTRINSTYECDVFFPEINENEYQIISV
SDVYTSNNTTLDFIIYKKTNNKM
Ligand information
Ligand IDNDP
InChIInChI=1S/C21H30N7O17P3/c22-17-12-19(25-7-24-17)28(8-26-12)21-16(44-46(33,34)35)14(30)11(43-21)6-41-48(38,39)45-47(36,37)40-5-10-13(29)15(31)20(42-10)27-3-1-2-9(4-27)18(23)32/h1,3-4,7-8,10-11,13-16,20-21,29-31H,2,5-6H2,(H2,23,32)(H,36,37)(H,38,39)(H2,22,24,25)(H2,33,34,35)/t10-,11-,13-,14-,15-,16-,20-,21-/m1/s1
InChIKeyACFIXJIJDZMPPO-NNYOXOHSSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O)(O)O[P@@](=O)(O)OC[C@@H]4[C@H]([C@H]([C@@H](O4)N5C=CCC(=C5)C(=O)N)O)O)O)OP(=O)(O)O)N
CACTVS 3.341NC(=O)C1=CN(C=CC1)[CH]2O[CH](CO[P](O)(=O)O[P](O)(=O)OC[CH]3O[CH]([CH](O[P](O)(O)=O)[CH]3O)n4cnc5c(N)ncnc45)[CH](O)[CH]2O
CACTVS 3.341NC(=O)C1=CN(C=CC1)[C@@H]2O[C@H](CO[P@@](O)(=O)O[P@](O)(=O)OC[C@H]3O[C@H]([C@H](O[P](O)(O)=O)[C@@H]3O)n4cnc5c(N)ncnc45)[C@@H](O)[C@H]2O
OpenEye OEToolkits 1.5.0c1nc(c2c(n1)n(cn2)C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OCC4C(C(C(O4)N5C=CCC(=C5)C(=O)N)O)O)O)OP(=O)(O)O)N
FormulaC21 H30 N7 O17 P3
NameNADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
ChEMBLCHEMBL407009
DrugBankDB02338
ZINCZINC000008215411
PDB chain1j3i Chain A Residue 610 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB1j3i Insights into antifolate resistance from malarial DHFR-TS structures.
Resolution2.33 Å
Binding residue
(original residue number in PDB)		C15 A16 L40 G44 V45 L46 G105 R106 T107 S108 L127 S128 R129 T130 N144 I164 G166 S167 V168 V169 E172
Binding residue
(residue number reindexed from 1)		C15 A16 L40 G44 V45 L46 G95 R96 T97 S98 L117 S118 R119 T120 N134 I154 G156 S157 V158 V159 E162
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) L46 D54
Catalytic site (residue number reindexed from 1) L46 D54
Enzyme Commision number 1.5.1.3: dihydrofolate reductase.
2.1.1.45: thymidylate synthase.
Gene Ontology
Molecular Function
GO:0004146 dihydrofolate reductase activity
GO:0050661 NADP binding
Biological Process
GO:0046654 tetrahydrofolate biosynthetic process

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:1j3i, PDBe:1j3i, PDBj:1j3i
PDBsum1j3i
PubMed12704428
UniProtP13922|DRTS_PLAFK Bifunctional dihydrofolate reductase-thymidylate synthase

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