Structure of PDB 1u70 Chain A Binding Site BS02

Receptor Information
>1u70 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]
VRPLNCIVAVSQNMGIGKNGDRPWPPLRNEFKYFQRMTTTSSVEGKQNLV
IMGRKTWFSIPEKNRPLKDRINIVLSRELKEPPRGAHFLAKSLDDALRLI
EQPELASKVDMVWIVGGSSVYQEAMNQPGHLRLFVTRIMQEFESDTFFPE
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 chain1u70 Chain A Residue 188 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1u70 Understanding the role of Leu22 variants in methotrexate resistance: comparison of wild-type and Leu22Arg variant mouse and human dihydrofolate reductase ternary crystal complexes with methotrexate and NADPH.
Resolution2.5 Å
Binding residue
(original residue number in PDB)		V8 A9 G20 G53 R54 K55 T56 L75 S76 R77 E78 S92 G116 G117 S118 V120
Binding residue
(residue number reindexed from 1)		V8 A9 G20 G53 R54 K55 T56 L75 S76 R77 E78 S92 G116 G117 S118 V120
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) R22 E30
Catalytic site (residue number reindexed from 1) R22 E30
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

View graph for
Molecular Function
View graph for
Biological Process
View graph for
Cellular Component
External links
PDB RCSB:1u70, PDBe:1u70, PDBj:1u70
PDBsum1u70
PubMed15681865
UniProtP00375|DYR_MOUSE Dihydrofolate reductase (Gene Name=Dhfr)

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