D3DistalMutation

D3DistalMutation catalogs distal mutations (>10 Å from enzyme active sites) by mapping them onto three-dimensional (3D) structures and linking them to measured changes in enzyme activity.

Key Features:

• Systematic Collection: Compiles 3D structural data documenting distal mutation sites (mutations >10 Å from active sites) and their associated activity changes.
• Activity Classification: Categorizes mutation effects into four classes: no change in activity, decreased activity, loss of activity, and increased activity.
• Quantitative Insights: Reports that approximately 80% of distal mutations influence enzyme activity, with 72.7% causing decreased or lost activity and 6.6% causing increased activity.
• Potential Industrial Applications: Identifies specific substitutions (for example, Y to F, S to D, and T to D) associated with activity enhancement relevant to industrial catalysis.
• Allosteric Drug Design: Details instances where distal mutations in allosteric pockets decrease enzyme activity, informing allosteric modulation strategies.
• Structural Exploration: Maps structural pockets within enzymes to enable investigation of regulatory mechanisms mediated by distal mutations.

Scientific Applications:

• Enzyme Regulation Studies: Facilitates analysis of how distant amino-acid changes affect enzyme function and regulation.
• Drug Design and Development: Supports allosteric drug design by linking distal mutation sites and activity decreases in allosteric pockets.
• Industrial Biotechnology: Informs engineering of enzymes for industrial applications by identifying mutations that enhance activity.

Methodology:

Integrates 3D structural data with annotations of mutation residues, active-site proximity (>10 Å), and descriptions of activity changes, classifies effects into four activity categories, and computes frequency statistics for each category.