Structure of PDB 1fb1 Chain A Binding Site BS01

Receptor Information
>1fb1 Chain A (length=196) Species: 9606 (Homo sapiens) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GERPRSEEDNELNLPNLAAAYSSILSSLGENPQRQGLLKTPWRAASAMQF
FTKGYQETISDVLNDAIFDEDHDEMVIVKDIDMFSMCEHHLVPFVGKVHI
GYLPNKQVLGLSKLARIVEIYSRRLQVQERLTKQIAVAITEALRPAGVGV
VVEATHMCMVMRGVQKMNSKTVTSTMLGVFREDPKTREEFLTLIRS
Ligand information
Ligand IDZN
InChIInChI=1S/Zn/q+2
InChIKeyPTFCDOFLOPIGGS-UHFFFAOYSA-N
SMILES
SoftwareSMILES
CACTVS 3.341[Zn++]
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Zn+2]
FormulaZn
NameZINC ION
ChEMBLCHEMBL1236970
DrugBankDB14532
ZINC
PDB chain1fb1 Chain A Residue 300 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1fb1 Zinc plays a key role in human and bacterial GTP cyclohydrolase I.
Resolution3.1 Å
Binding residue
(original residue number in PDB)		C141 H144 C212
Binding residue
(residue number reindexed from 1)		C87 H90 C158
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) C141 E142 H143 H144 Q182 H210 C212
Catalytic site (residue number reindexed from 1) C87 E88 H89 H90 Q128 H156 C158
Enzyme Commision number 3.5.4.16: GTP cyclohydrolase I.
Gene Ontology
Molecular Function
GO:0003934 GTP cyclohydrolase I activity
Biological Process
GO:0046654 tetrahydrofolate biosynthetic process

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Molecular Function
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Biological Process
External links
PDB RCSB:1fb1, PDBe:1fb1, PDBj:1fb1
PDBsum1fb1
PubMed11087827
UniProtP30793|GCH1_HUMAN GTP cyclohydrolase 1 (Gene Name=GCH1)

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