Related Experiment Video
Updated: May 24, 2026
09:03
Forward Genetic Approaches in Chlamydia trachomatis
Published on: October 23, 2013
Insight into trichomonas vaginalis genome evolution through metabolic pathways comparison
Bioinformation
|March 16, 2012
Summary
Trichomonas vaginalis has unusual genomic features, including large genome size and gene duplication. Comparative analysis identified essential enzymes, potential drug targets, and insights into its evolution in the urogenital environment.
Area of Science:
- Microbiology
- Genomics
- Biochemistry
Background:
- Trichomonas vaginalis causes trichomoniasis and is linked to male urogenital issues.
- Its genome exhibits unique characteristics: large size, hydrogenosomes, gene duplication, lateral gene transfer, and microRNAs.
- Understanding these genomic features is crucial for therapeutic development.
Purpose of the Study:
- To conduct a comparative analysis of Trichomonas vaginalis metabolic pathways against 22 common organisms.
- To identify orthologous and paralogous enzymes within T. vaginalis.
- To pinpoint essential enzymes for T. vaginalis survival and potential drug targets.
Main Methods:
- Enzymes from T. vaginalis and selected organisms were retrieved from the KEGG metabolic pathway database.
- BLASTP program was used to identify orthologous enzymes.
- Paralogous relationships and essentiality of identified enzymes were assessed.
Main Results:
- 101 orthologous enzymes were identified in T. vaginalis metabolic pathways.
- Nearly all identified orthologous enzymes were also found to be paralogous.
- 75 essential enzymes were identified, with 26 being non-essential; N-acetylneuraminate lyase was flagged as a lateral gene transfer candidate.
Conclusions:
- Comparative metabolic pathway analysis reveals significant gene duplication and lateral gene transfer in T. vaginalis evolution.
- Essential enzymes identified represent promising targets for novel drug development against trichomoniasis.
- The study highlights the dynamic genomic evolution of T. vaginalis from enteric to urogenital pathogen.
Related Concept Videos
01:08Evolution of Microbial Genome
Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.
02:16Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes
The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
01:29Modern Molecular Taxonomy
Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
01:24Evolution of New Traits in Microbes
Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...
02:54Evolutionary Relationships through Genome Comparisons
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
01:15Diversity of Protists I
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...