fuNTRp

fuNTRp (functionNeutral/Toggle/Rheostat predictor) predicts the functional impact class of protein positions by classifying them as Neutral, Rheostat, or Toggle to inform interpretation of non-synonymous (missense) variants.

Key Features:

• Categorization of protein positions: Classifies positions into Neutral (mutations with weak or no functional effects), Rheostat (positions that tune protein activity across a spectrum), and Toggle (positions that act as on/off switches producing large functional changes).
• Reduced reliance on traditional features: Evaluates mutational impact at higher resolution without heavy dependence on sequence conservation or other conventional protein features.
• Empirical correlation findings: Reports that assigned position types do not strongly correlate with sequence conservation or disorder.
• Function-specific distribution: Demonstrates that the distribution of Neutral, Rheostat, and Toggle positions varies across different protein functions.
• Enhancement of variant effect predictors: Shows that integrating position-type information can improve performance of existing variant effect prediction methods for interpreting non-synonymous variants.

Scientific Applications:

• Disease association studies: Refines assessment of which non-synonymous variants are likely to affect protein function and contribute to disease.
• Evolutionary biology: Provides insights into evolutionary pressures and functional diversification by distinguishing position types across proteins.
• Synthetic protein design: Identifies positions amenable to modification for tuning or preserving protein activity in engineered proteins.
• Protein stability assessments: Informs evaluation of how mutations at different position types may impact protein stability.

Methodology:

Classifies protein positions into Neutral, Rheostat, and Toggle based on analysis of mutational impact, emphasizing high-resolution evaluation and reduced reliance on sequence conservation or conventional protein features.