aPPRove

aPPRove predicts interactions between pentatricopeptide repeat (PPR) proteins and their specific RNA binding sites to identify sequence-specific RNA-binding events and inform studies of RNA processing in plant organelles.

Key Features:

• Prediction Accuracy: Leverages algorithms to predict interactions between PPR motifs, which are degenerate 35-amino-acid structural motifs, and their corresponding RNA targets.
• Comprehensive Database Integration: Integrates extensive sequence data from sequenced plant genomes, with emphasis on angiosperms where PPR families typically comprise ~400–600 members per genome.
• Evolutionary Insight: Provides insights into the evolutionary expansion of the PPR gene family during land plant evolution compared with green algae, where ~10–20 PPR genes are typically found.
• Functional Diversification Analysis: Analyzes predicted PPR–RNA interactions to explore how PPR family expansion has contributed to functional diversification of plant organelles, particularly RNA editing processes.

Scientific Applications:

• Genomic Research: Supports studies of evolution and diversification of gene families in plants by mapping PPR–RNA interactions.
• RNA Processing Studies: Aids investigation of organellar RNA processing mechanisms through sequence-specific PPR–RNA binding predictions.
• Evolutionary Biology: Enables analysis of selection pressures and lineage-specific expansion of PPR genes across different plant species.

Methodology:

Performs sequence analysis and structural prediction by analyzing degenerate motifs within PPR proteins to model potential RNA binding sites, supported by extensive genomic sequence data from sequenced plant genomes.