Structure of PDB 1qiq Chain A Binding Site BS02

Receptor Information

>1qiq Chain A (length=328) Species: 227321 (Aspergillus nidulans FGSC A4)

VSKANVPKIDVSPLFGDDQAAKMRVAQQIDAASRDTGFFYAVNHGINVQR
LSQKTKEFHMSITPEEKWDLAIRAYNKEHQDQVRAGYYLSIPGKKAVESF
CYLNPNFTPDHPRIQAKTPTHEVNVWPDETKHPGFQDFAEQYYWDVFGLS
SALLKGYALALGKEENFFARHFKPDDTLASVVLIRYPYLDPYPEAAIKTA
ADGTKLSFEWHEDVSLITVLYQSNVQNLQVETAAGYQDIEADDTGYLINC
GSYMAHLTNNYYKAPIHRVKWVNAERQSLPFFVNLGYDSVIDPFDPREPN
GKSDREPLSYGDYLQNGLVSLINKNGQT

Ligand information

• Ligand ID: FE
• InChI: InChI=1S/Fe/q+3
• InChIKey: VTLYFUHAOXGGBS-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  CACTVS 3.341
  OpenEye OEToolkits 1.5.0: [Fe+3]
• Formula: Fe
• Name: FE (III) ION
• DrugBank: DB13949
• PDB chain: 1qiq Chain A Residue 333

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1qiq The Reaction Cycle of Isopenicillin N Synthase Observed by X-Ray Diffraction.
• Resolution: 1.5 Å
• Binding residue (original residue number in PDB): H214 D216 H270
• Binding residue (residue number reindexed from 1): H211 D213 H267
• Annotation score: 1

Enzymatic activity

• Catalytic site (original residue number in PDB): L186 F211 H214 D216 H270
• Catalytic site (residue number reindexed from 1): L183 F208 H211 D213 H267
• Enzyme Commision number: 1.21.3.1: isopenicillin-N synthase.

Gene Ontology

Molecular Function

• GO:0005506 iron ion binding
• GO:0016216 isopenicillin-N synthase activity
• GO:0016491 oxidoreductase activity
• GO:0031418 L-ascorbic acid binding
• GO:0046872 metal ion binding

Biological Process

• GO:0009058 biosynthetic process
• GO:0017000 antibiotic biosynthetic process
• GO:0042318 penicillin biosynthetic process
• GO:0044283 small molecule biosynthetic process

Cellular Component

• GO:0005737 cytoplasm
• GO:0005829 cytosol

External links

• PDB: RCSB:1qiq, PDBe:1qiq, PDBj:1qiq
• PDBsum: 1qiq
• PubMed: 10537113
• UniProt: P05326|IPNA_EMENI Isopenicillin N synthase (Gene Name=ipnA)