# Aminopeptidase M17 in bacteria: insights into structure, function, and potential as a drug target

**Authors:** Hussam Askar, Shengli Chen, Huafang Hao, Xiangrui Jin, Ahmed Adel Baz, Shimei Lan, Zhangcheng Li, Yuefeng Chu

PMC · DOI: 10.1128/jb.00504-25 · Journal of Bacteriology · 2025-12-30

## TL;DR

This review explores M17-LAP enzymes in bacteria, their structure and function, and their potential as targets for new antibiotics.

## Contribution

The paper highlights M17-LAPs as promising, selective targets for combating antibiotic resistance through structural and functional insights.

## Key findings

- M17-LAPs are widespread in bacteria and play a key role in amino acid removal and microbial survival.
- Structural and functional studies of M17-LAPs could lead to the development of selective antimicrobial inhibitors.
- Future research on protein–protein interactions and structural biology may unlock targeted therapeutic strategies.

## Abstract

Leucyl-aminopeptidase (LAP) is a type of protease that targets peptides and the nitrogen terminus of protein molecules, playing a key role in the removal of amino acids. This function is not only significant but also enlightening, as it contributes to our understanding of microbial survival and persistence. The presence of M17-LAPs enzymes across various bacterial species indicates the possibility of creating selective inhibitors, offering new avenues for antimicrobial development amidst increasing antibiotic resistance. Additionally, understanding the relationship between the structure of these enzymes and their functions can aid in the development of more effective treatment methods and enhance current therapies. In this review, we unravel the structural blueprints, functional roles, and therapeutic promise of M17-LAPs, highlighting their relevance in the era of escalating antibiotic resistance. We also highlight future research avenues, emphasizing structural biology and protein–protein interaction mapping as keys to unlocking targeted therapeutic strategies. By bridging molecular structure with translational potential, we propose a new vision: harnessing the vulnerabilities of M17-LAPs to inspire next-generation antibacterial strategies.

## Full-text entities

- **Genes:** LAP3 (leucine aminopeptidase 3) [NCBI Gene 51056] {aka HEL-S-106, LAP, LAPEP, PEPS}

## Full text

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## Figures

5 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12826064/full.md

## References

79 references — full list in the complete paper: https://tomesphere.com/paper/PMC12826064/full.md

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Source: https://tomesphere.com/paper/PMC12826064