Structure of PDB 1n3r Chain M Binding Site BS02

Receptor Information
>1n3r Chain M (length=221) Species: 562 (Escherichia coli) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
PSLSKEAALVHEALVARGLETPLRPPVHEMDNETRKSLIAGHMTEIMQLL
NLDLADDSLMETPHRIAKMYVDEIFSGLDYANFPKITLIENKMKVDEMVT
VRDITLTSTCESHFVTIDGKATVAYIPKDSVIGLSKINRIVQFFAQRPQV
QERLTQQILIALQTLLGTNNVAVSIDAVHYCVKARGIRDATSATTTTSLG
GLFKSSQNTRHEFLRAVRHHN
Ligand information
Ligand IDGTP
InChIInChI=1S/C10H16N5O14P3/c11-10-13-7-4(8(18)14-10)12-2-15(7)9-6(17)5(16)3(27-9)1-26-31(22,23)29-32(24,25)28-30(19,20)21/h2-3,5-6,9,16-17H,1H2,(H,22,23)(H,24,25)(H2,19,20,21)(H3,11,13,14,18)/t3-,5-,6-,9-/m1/s1
InChIKeyXKMLYUALXHKNFT-UUOKFMHZSA-N
SMILES
SoftwareSMILES
OpenEye OEToolkits 1.7.6c1nc2c(n1[C@H]3[C@@H]([C@@H]([C@H](O3)CO[P@](=O)(O)O[P@](=O)(O)OP(=O)(O)O)O)O)N=C(NC2=O)N
CACTVS 3.370NC1=Nc2n(cnc2C(=O)N1)[C@@H]3O[C@H](CO[P](O)(=O)O[P](O)(=O)O[P](O)(O)=O)[C@@H](O)[C@H]3O
CACTVS 3.370NC1=Nc2n(cnc2C(=O)N1)[CH]3O[CH](CO[P](O)(=O)O[P](O)(=O)O[P](O)(O)=O)[CH](O)[CH]3O
OpenEye OEToolkits 1.7.6c1nc2c(n1C3C(C(C(O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)O)O)O)N=C(NC2=O)N
ACDLabs 12.01O=P(O)(O)OP(=O)(O)OP(=O)(O)OCC3OC(n2cnc1c2N=C(N)NC1=O)C(O)C3O
FormulaC10 H16 N5 O14 P3
NameGUANOSINE-5'-TRIPHOSPHATE
ChEMBLCHEMBL1233147
DrugBankDB04137
ZINCZINC000060094177
PDB chain1n3r Chain N Residue 1423 [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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PDB1n3r Biosynthesis of Pteridines. Reaction Mechanism of GTP Cyclohydrolase I
Resolution2.8 Å
Binding residue
(original residue number in PDB)		S112 H113 V150 Q151 E152 H179 C181 R185
Binding residue
(residue number reindexed from 1)		S112 H113 V150 Q151 E152 H179 C181 R185
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) C110 E111 S112 H113 Q151 H179 C181
Catalytic site (residue number reindexed from 1) C110 E111 S112 H113 Q151 H179 C181
Enzyme Commision number 3.5.4.16: GTP cyclohydrolase I.
Gene Ontology
Molecular Function
GO:0003934 GTP cyclohydrolase I activity
GO:0005525 GTP binding
GO:0008270 zinc ion binding
GO:0016787 hydrolase activity
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0006729 tetrahydrobiopterin biosynthetic process
GO:0006730 one-carbon metabolic process
GO:0008616 queuosine biosynthetic process
GO:0046654 tetrahydrofolate biosynthetic process
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol
GO:0032991 protein-containing complex

View graph for
Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1n3r, PDBe:1n3r, PDBj:1n3r
PDBsum1n3r
PubMed12559918
UniProtP0A6T5|GCH1_ECOLI GTP cyclohydrolase 1 (Gene Name=folE)

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