ProbCons

ProbCons performs progressive multiple sequence alignment of amino acid sequences using probabilistic consistency to improve alignment accuracy for protein family and evolutionary analyses.

Key Features:

• Probabilistic consistency scoring: Implements a probabilistic consistency scoring function that evaluates the likelihood of residue-residue matches across multiple sequences.
• Progressive alignment algorithm: Conducts progressive multiple sequence alignment guided by the probabilistic consistency scoring function.
• Likelihood-based residue matching: Systematically assesses residue-residue match probabilities to improve alignment precision.
• Objective alignment quality measure: Provides an objective measure to evaluate the quality of sequence comparisons via the scoring function.
• Benchmark validation: Demonstrates improved alignment accuracy on BAliBASE, SABmark, and PREFAB while maintaining practical execution speeds.

Scientific Applications:

• Evolutionary biology: Produces accurate alignments for studies of gene evolution and protein family relationships.
• Structural genomics: Supplies reliable protein alignments to support structural genomics analyses.
• Functional annotation: Aids functional annotation of proteins through improved multiple sequence alignments.
• Comparative protein family analysis: Enables comparative analysis of protein families across diverse organisms.

Methodology:

Performs progressive multiple sequence alignment guided by a probabilistic consistency scoring function that assesses likelihoods of residue-residue matches across sequences.