Structure of PDB 1q54 Chain B Binding Site BS02

Receptor Information

>1q54 Chain B (length=180) Species: 562 (Escherichia coli)

EHVILLNAQGVPTGTLEKYAAHTADTRLHLAFSSWLFNAKGQLLVTRRAL
SKKAWPGVWTNSVAGHPQLGESNEDAVIRRCRYELGVEITPPESIYPDFR
YRATDPSGIVENEVCPVFAARTTSALQINDDEVMDYQWCDLADVLHGIDA
TPWAFSPWMVMQATNREARKRLSAFTQLKL

Ligand information

• Ligand ID: MG
• InChI: InChI=1S/Mg/q+2
• InChIKey: JLVVSXFLKOJNIY-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Mg+2]
  CACTVS 3.341: [Mg++]
• Formula: Mg
• Name: MAGNESIUM ION
• DrugBank: DB01378
• PDB chain: 1q54 Chain B Residue 401

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1q54 Structure and mechanism of action of isopentenylpyrophosphate-dimethylallylpyrophosphate isomerase.
• Resolution: 1.93 Å
• Binding residue (original residue number in PDB): A67 E87
• Binding residue (residue number reindexed from 1): A64 E84
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): H25 H32 A67 H69 E87 Y104 E114 E116 W161
• Catalytic site (residue number reindexed from 1): H22 H29 A64 H66 E84 Y101 E111 E113 W158
• Enzyme Commision number: 5.3.3.2: isopentenyl-diphosphate Delta-isomerase.

Gene Ontology

Molecular Function

• GO:0000287 magnesium ion binding
• GO:0003824 catalytic activity
• GO:0004452 isopentenyl-diphosphate delta-isomerase activity
• GO:0008270 zinc ion binding
• GO:0016853 isomerase activity
• GO:0046872 metal ion binding

Biological Process

• GO:0006974 DNA damage response
• GO:0008299 isoprenoid biosynthetic process
• GO:0050992 dimethylallyl diphosphate biosynthetic process

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:1q54, PDBe:1q54, PDBj:1q54
• PDBsum: 1q54
• PubMed: 12630859
• UniProt: Q46822|IDI_ECOLI Isopentenyl-diphosphate Delta-isomerase (Gene Name=idi)