Structure of PDB 1qxz Chain A Binding Site BS03

Receptor Information

>1qxz Chain A (length=249) Species: 1280 (Staphylococcus aureus)

MIVKTEEELQALKEIGYICAKVRNTMQAATKPGITTKELDNIAKELFEEY
GAISAPIHDENFPGQTCISVNEEVAHGIPSKRVIREGDLVNIDVSALKNG
YYADTGISFVVGESDDPMKQKVCDVATMAFENAIAKVKPGTKLSNIGKAV
HNTARQNDLKVIKNLTGHGVGLSLHEAPAHVLNYFDPKDKTLLTEGMVLA
IEPFISSNASFVTEGKNEWAFETSDKSFVAQIEHTVIVTKDGPILTTKI

Ligand information

• Ligand ID: CO
• InChI: InChI=1S/Co/q+2
• InChIKey: XLJKHNWPARRRJB-UHFFFAOYSA-N
• SMILES:
  ACDLabs 10.04
  OpenEye OEToolkits 1.5.0: [Co+2]
  CACTVS 3.341: [Co++]
• Formula: Co
• Name: COBALT (II) ION
• DrugBank: DB14205
• PDB chain: 1qxz Chain A Residue 1003

Receptor-Ligand Complex Structure

Structure summary

• PDB: 1qxz Crystal structures of staphylococcusaureus methionine aminopeptidase complexed with keto heterocycle and aminoketone inhibitors reveal the formation of a tetrahedral intermediate.
• Resolution: 1.68 Å
• Binding residue (original residue number in PDB): H171 H178
• Binding residue (residue number reindexed from 1): H168 H175
• Annotation score: 3

Enzymatic activity

• Catalytic site (original residue number in PDB): D97 D108 H171 H178 E204 E235
• Catalytic site (residue number reindexed from 1): D93 D104 H168 H175 E202 E233
• Enzyme Commision number: 3.4.11.18: methionyl aminopeptidase.

Gene Ontology

Molecular Function

• GO:0004177 aminopeptidase activity
• GO:0004239 initiator methionyl aminopeptidase activity
• GO:0008235 metalloexopeptidase activity
• GO:0046872 metal ion binding
• GO:0046914 transition metal ion binding
• GO:0070006 metalloaminopeptidase activity

Biological Process

• GO:0006508 proteolysis

External links

• PDB: RCSB:1qxz, PDBe:1qxz, PDBj:1qxz
• PDBsum: 1qxz
• PubMed: 14998322
• UniProt: P0A078|MAP1_STAAM Methionine aminopeptidase (Gene Name=map)