G4Killer

G4Killer designs mutations that reduce the propensity for G-quadruplex (G4) formation in DNA sequences for rational manipulation and study of G4-related genomic features.

Key Features:

• G4Hunter-based scoring: Extends and employs the G4Hunter algorithm to evaluate G-quadruplex propensity and to guide mutation selection aimed at lowering G4Hunter scores.
• Rational mutation design: Identifies sequence substitutions that decrease G4 formation propensity in target DNA sequences.
• Parsimonious mutation minimization: Prioritizes solutions that minimize the number of mutation steps and preserve the primary sequence integrity.
• Integration with DNA Analyzer Server: Integrates with the DNA Analyzer Server to operate within broader DNA analysis workflows.

Scientific Applications:

• Study of G4 regulatory roles: Supports experimental manipulation of G-quadruplex propensity to investigate the regulatory functions of G4 structures in genomes.
• Disease and therapeutic research: Enables design of mutations to probe G4 involvement in disease contexts and to explore G4-targeted therapeutic strategies.

Methodology:

G4Killer employs the G4Hunter algorithm to identify potential mutations that disrupt G-quadruplex formation and focuses on parsimonious changes that minimize mutation count while lowering the G4Hunter score and preserving the primary sequence.