Diversity and evolution of ABC proteins in basidiomycetes

Area of Science:

• * Molecular Biology
• * Fungal Genomics
• * Protein Science

Background:

• * ATP-binding cassette (ABC) proteins are a large protein family involved in diverse cellular functions.
• * Fungal genomics is rapidly expanding the known repertoire of ABC proteins, yet functional data remains limited.
• * Previous analyses of fungal ABC proteins require expansion to include newly sequenced species.

Purpose of the Study:

• * To identify and catalog ATP-binding cassette (ABC) proteins in recently sequenced basidiomycete fungal species.
• * To compare the ABC protein complements of basidiomycetes with those of ascomycetes.
• * To contribute to understanding the evolutionary dynamics of ABC proteins within the fungal kingdom.

Main Methods:

• * Bioinformatic identification and cataloging of ABC protein-coding genes.
• * Comparative genomics analysis across 23 fungal species from 10 orders within Agaricomycotina.
• * Comparative analysis of ABC protein sets between basidiomycetes and ascomycetes.

Main Results:

• * Over 1000 genes encoding ABC proteins were identified across the studied basidiomycete species.
• * The analysis revealed more than 1000 genes coding for ABC proteins.
• * Two distinct groups of ABC proteins were found to be specific to basidiomycetes when compared to ascomycetes.

Conclusions:

• * The comprehensive cataloging provides a foundation for future functional studies of fungal ABC proteins.
• * The identification of basidiomycete-specific ABC protein groups offers insights into fungal-specific evolutionary trajectories.
• * This work advances the understanding of ABC protein evolution in fungi and aids in future experimental characterization.