5LHJ image
Entry Detail
PDB ID:
5LHJ
Keywords:
Title:
Bottromycin maturation enzyme BotP
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2016-07-12
Release Date:
2016-10-12
Method Details:
Experimental Method:
Resolution:
1.76 Å
R-Value Free:
0.19
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 63 2 2
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:Leucine aminopeptidase 2, chloroplastic
Chain IDs:A
Chain Length:504
Number of Molecules:1
Biological Source:Streptomyces sp. BC16019
Primary Citation
Structure and Substrate Recognition of the Bottromycin Maturation Enzyme BotP.
Chembiochem 17 2286 2292 (2016)
PMID: 27653442 DOI: 10.1002/cbic.201600406

Abstact

The bottromycins are a family of highly modified peptide natural products, which display potent antimicrobial activity against Gram-positive bacteria, including methicillin-resistant Staphylococcus aureus. Bottromycins have recently been shown to be ribosomally synthesized and post-translationally modified peptides (RiPPs). Unique amongst RiPPs, the precursor peptide BotA contains a C-terminal "follower" sequence, rather than the canonical N-terminal "leader" sequence. We report herein the structural and biochemical characterization of BotP, a leucyl-aminopeptidase-like enzyme from the bottromycin pathway. We demonstrate that BotP is responsible for the removal of the N-terminal methionine from the precursor peptide. Determining the crystal structures of both apo BotP and BotP in complex with Mn2+ allowed us to model a BotP/substrate complex and to rationalize substrate recognition. Our data represent the first step towards targeted compound modification to unlock the full antibiotic potential of bottro- mycin.

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