Structure of PDB 2gg9 Chain A

Receptor sequence

>2gg9A (length=263) Species: 83333 (Escherichia coli K-12)

AISIKTPEDIEKMRVAGRLAAEVLEMIEPYVKPGVSTGELDRICNDYIVN
EQHAVSACLGYHGYPKSVCISINEVVCHGIPDDAKLLKDGDIVNIDVTVI
KDGFHGDTSKMFIVGKPTIMGERLCRITQESLYLALRMVKPGINLREIGA
AIQKFVEAEGFSVVREYCGHGIGRGFHEEPQVLHYDSRETNVVLKPGMTF
TIEPMVNAGKKEIRTMKDGWTVKTKDRSLSAQYEHTIVVTDNGCEILTLR
KDDTIPAIISHDE

3D structure

• PDB: 2gg9 Serendipitous discovery of novel bacterial methionine aminopeptidase inhibitors.
• Chain: A
• Resolution: 1.05 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): H79 D97 D108 H171 R175 H178 Q182 E204 N208 Q233 E235
• Catalytic site (residue number reindexed from 1): H78 D96 D107 H170 R174 H177 Q181 E203 N207 Q232 E234
• Enzyme Commision number: 3.4.11.18: methionyl aminopeptidase.

Interaction with ligand

Site #	Ligand	Ligand chain	Binding residues on receptor (original residue number in PDB)	Binding residues on receptor (residue number reindexed from 1)	Binding affinity
BS01	CO	A	D108 H171 T202 E204 E235	D107 H170 T201 E203 E234
BS02	CO	A	D97 D108 E235	D96 D107 E234
BS03	U16	A	Y62 Y65 C70 H79 D97 D108 Y168 H171 F177 H178 E204 W221 E235	Y61 Y64 C69 H78 D96 D107 Y167 H170 F176 H177 E203 W220 E234	MOAD: ic50=3.5uM PDBbind-CN: -logKd/Ki=5.46,IC50=3.5uM BindingDB: IC50=3500nM

Gene Ontology

Molecular Function

• GO:0004177 aminopeptidase activity
• GO:0004239 initiator methionyl aminopeptidase activity
• GO:0008198 ferrous iron binding
• GO:0008235 metalloexopeptidase activity
• GO:0046872 metal ion binding
• GO:0046914 transition metal ion binding
• GO:0070006 metalloaminopeptidase activity

Biological Process

• GO:0006508 proteolysis

Cellular Component

• GO:0005829 cytosol

External links

• PDB: RCSB:2gg9, PDBe:2gg9, PDBj:2gg9
• PDBsum: 2gg9
• PubMed: 17120228
• UniProt: P0AE18|MAP1_ECOLI Methionine aminopeptidase (Gene Name=map)