Structure of PDB 3k45 Chain A Binding Site BS01

Receptor Information
>3k45 Chain A (length=186) Species: 10090 (Mus musculus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
VRPLNCIVAVSQNMGIGKNGDLPWPPLRNEFKYFQRMTTTSSVEGKQNLV
IMGRKTWFSIPEKNRPLKDRINIVLSRELKEPPRGAHFLAKSLDDALRLI
EQPDLASKVDMVWIVGGSSVYQEAMNQPGHLRLFVTRIMQEFESDTFFPE
IDLGKYKLLPEYPGVLSEVQEEKGIKYKFEVYEKKD
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 chain3k45 Chain A Residue 187 [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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PDB3k45 Design, synthesis, and X-ray crystal structures of 2,4-diaminofuro[2,3-d]pyrimidines as multireceptor tyrosine kinase and dihydrofolate reductase inhibitors.
Resolution1.6 Å
Binding residue
(original residue number in PDB)		V8 A9 I16 G20 D21 L22 R54 K55 T56 L75 S76 R77 K91 S92 V115 G117 S118 S119 V120
Binding residue
(residue number reindexed from 1)		V8 A9 I16 G20 D21 L22 R54 K55 T56 L75 S76 R77 K91 S92 V115 G117 S118 S119 V120
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) L22 W24 E30 F31 F34 L67 M111 T136
Catalytic site (residue number reindexed from 1) L22 W24 E30 F31 F34 L67 M111 T136
Enzyme Commision number 1.5.1.3: dihydrofolate reductase.
Gene Ontology
Molecular Function
GO:0003723 RNA binding
GO:0003729 mRNA binding
GO:0004146 dihydrofolate reductase activity
GO:0016491 oxidoreductase activity
GO:0050661 NADP binding
GO:0051871 dihydrofolic acid binding
Biological Process
GO:0006729 tetrahydrobiopterin biosynthetic process
GO:0006730 one-carbon metabolic process
GO:0031103 axon regeneration
GO:0031427 response to methotrexate
GO:0035094 response to nicotine
GO:0035999 tetrahydrofolate interconversion
GO:0046452 dihydrofolate metabolic process
GO:0046653 tetrahydrofolate metabolic process
GO:0046654 tetrahydrofolate biosynthetic process
GO:0046655 folic acid metabolic process
GO:0051000 positive regulation of nitric-oxide synthase activity
GO:2000121 regulation of removal of superoxide radicals
Cellular Component
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0005739 mitochondrion
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:3k45, PDBe:3k45, PDBj:3k45
PDBsum3k45
PubMed19748785
UniProtP00375|DYR_MOUSE Dihydrofolate reductase (Gene Name=Dhfr)

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