# Petri Net modeling of thiamine diphosphate biosynthesis in Mycobacterium tuberculosis H37Rv

**Authors:** Mohd Asif Siddiqui, Ravindra Kumar Jain, Ashwani Kumar, Dhanendra Kumar Rai, Nikhil Chand, Ritika Yadav, Anu Chauhan, Sarita Rana

PMC · DOI: 10.6026/973206300211029 · Bioinformation · 2025-05-31

## TL;DR

This paper creates a computational model of thiamine diphosphate production in tuberculosis bacteria to help design new drugs.

## Contribution

A novel Petri net model of TPP biosynthesis in Mycobacterium tuberculosis using curated MetaCyc data and Snoopy software.

## Key findings

- The model integrates three biosynthetic branches and key enzymes in TPP production.
- Simulation revealed critical regulatory nodes in the pathway.
- The model provides a foundation for drug design targeting tuberculosis.

## Abstract

Thiamine diphosphate (TPP) is essential cofactor in Mycobacterium tuberculosis H37Rv metabolism, making its biosynthesis pathway a
key target for therapy. Therefore, it is of interest to describe a Petri net-based model of the TPP biosynthesis super-pathway,
developed using curated MetaCyc data and simulated with Snoopy software. The model integrates three biosynthetic branches and maps key
enzymes (ThiC, ThiD, ThiE, ThiF, ThiG, ThiS) along with their gene identifiers. The simulation of token flow revealed the pathway's
dynamics, highlighting critical regulatory nodes. This computational approach provides insights into TPP biosynthesis and serves as a
basis for drug design targeting tuberculosis.

## Linked entities

- **Proteins:** THIC (thiaminC), thiD (phosphomethylpyrimidine kinase), thiE (thiamine-phosphate pyrophosphorylase), TXNIP (thioredoxin interacting protein), thiG (thiamin biosynthesis protein G), thiS (sulfur carrier protein ThiS)
- **Chemicals:** thiamine diphosphate (PubChem CID 1132), TPP (PubChem CID 164912)
- **Diseases:** tuberculosis (MONDO:0018076)
- **Species:** Mycobacterium tuberculosis H37Rv (taxon 83332)

## Full-text entities

- **Genes:** ThiC [NCBI Gene 886379], ThiS [NCBI Gene 23493493], ThiE [NCBI Gene 886391], ThiD [NCBI Gene 886375], ThiG [NCBI Gene 886396]
- **Chemicals:** TPP (MESH:D013835)
- **Species:** Mycobacterium tuberculosis H37Rv (strain) [taxon 83332]

## Full text

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## References

16 references — full list in the complete paper: https://tomesphere.com/paper/PMC12357739/full.md

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Source: https://tomesphere.com/paper/PMC12357739