Structure of PDB 1txr Chain A

Receptor sequence
>1txrA (length=291) Species: 671 (Vibrio proteolyticus) [Search protein sequence]
MPPITQQATVTAWLPQVDASQITGTISSLESFTNRFYTTTSGAQASDWIA
SEWQALSASLPNASVKQVSHSGYNQKSVVMTITGSEAPDEWIVIGGHLDS
TIGSHTNEQSVAPGADDDASGIAAVTEVIRVLSENNFQPKRSIAFMAYAA
EEVGLRGSQDLANQYKSEGKNVVSALQLDMTNYKGSAQDVVFITDYTDSN
FTQYLTQLMDEYLPSLTYGFDTCGYACSDHASWHNAGYPAAMPFESKFND
YNPRIHTTQDTLANSDPTGSHAKKFTQLGLAYAIEMGSATG
3D structure
PDB1txr Spectroscopic and X-ray Crystallographic Characterization of Bestatin Bound to the Aminopeptidase from Aeromonas (Vibrio) proteolytica.
ChainA
Resolution2.0 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) H97 D117 E151 E152 D179 H256
Catalytic site (residue number reindexed from 1) H97 D117 E151 E152 D179 H256
Enzyme Commision number 3.4.11.10: bacterial leucyl 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 ZN A D117 E152 H256 D117 E152 H256
BS02 ZN A H97 D117 D179 H97 D117 D179
BS03 BES A D117 E151 E152 L155 D179 C223 Y225 C227 F244 F248 Y251 H256 D117 E151 E152 L155 D179 C223 Y225 C227 F244 F248 Y251 H256 MOAD: Ki=18nM
PDBbind-CN: -logKd/Ki=7.74,Ki=18nM
BindingDB: IC50=1.6nM,Ki=1.6nM
Gene Ontology
Molecular Function
GO:0008235 metalloexopeptidase activity
Biological Process
GO:0006508 proteolysis

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Molecular Function
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Biological Process
External links
PDB RCSB:1txr, PDBe:1txr, PDBj:1txr
PDBsum1txr
PubMed15274616
UniProtQ01693|AMPX_VIBPR Bacterial leucyl aminopeptidase

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