Structure of PDB 1wm9 Chain A Binding Site BS01

Receptor Information

>1wm9 Chain A (length=185) Species: 300852 (Thermus thermophilus HB8)

EVDLERLQALAAEWLQVIGEDPGREGLLKTPERVAKAWAFLTRGYRQRLE
EVVGGAVFPAEGSEMVVVKGVEFYSMCEHHLLPFFGKVHIGYIPDGKILG
LSKFARIVDMFARRLQVQERLAVQIAEAIQEVLEPQGVGVVVEGVHLCMM
MRGVEKQHSRTVTSAMLGVFRENQKTREEFLSHLR

Ligand information

• Ligand ID: ZN
• InChI: InChI=1S/Zn/q+2
• InChIKey: PTFCDOFLOPIGGS-UHFFFAOYSA-N
• SMILES:
  CACTVS 3.341: [Zn++]
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Zn+2]
• Formula: Zn
• Name: ZINC ION
• ChEMBL: CHEMBL1236970
• DrugBank: DB14532
• PDB chain: 1wm9 Chain A Residue 1001

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1wm9 Novel Reaction Mechanism of GTP Cyclohydrolase I. High-Resolution X-Ray Crystallography of Thermus thermophilus HB8 Enzyme Complexed with a Transition State Analogue, the 8-Oxoguanine Derivative.
• Resolution: 2.2 Å
• Binding residue (original residue number in PDB): C108 H111 C179
• Binding residue (residue number reindexed from 1): C77 H80 C148
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): C108 E109 H110 H111 Q149 H177 C179
• Catalytic site (residue number reindexed from 1): C77 E78 H79 H80 Q118 H146 C148
• 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:0046872 metal ion binding

Biological Process

• GO:0006729 tetrahydrobiopterin biosynthetic process
• GO:0006730 one-carbon metabolic process
• GO:0046654 tetrahydrofolate biosynthetic process

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:1wm9, PDBe:1wm9, PDBj:1wm9
• PDBsum: 1wm9
• PubMed: 16169877
• UniProt: Q5SH52