DNA-BAR

DNA-BAR selects optimal DNA probes (distinguishers) from complete genomic sequences to produce unique hybridization patterns for genomic-based identification of microorganisms.

Key Features:

• Genomic Sequence Analysis: Utilizes complete genomic sequences of target microorganisms to identify candidate distinguishers.
• Optimization of Distinguishers: Finds a near-minimum set of distinguishers that produce unique hybridization patterns for each microorganism.
• Customizable Parameters: Allows specification of probe length, melting temperature, and GC content to tailor probe selection.
• Length: Controls the length of DNA probes used as distinguishers.
• Melting Temperature: Controls probe melting temperature to ensure stability under specified conditions.
• GC Content: Adjusts the proportion of guanine and cytosine bases in probes.
• Constraints Management: Manages selection constraints to enforce specificity and non-redundancy among distinguishers.
• Redundancy Constraints: Minimizes overlap between distinguishers to avoid redundant probes.
• Cross-Hybridization Constraints: Reduces the likelihood of non-specific binding by limiting cross-hybridization.

Scientific Applications:

• Microbiology: Selection of genome-derived probes for distinguishing closely related microbial taxa.
• Clinical diagnostics: Design of specific probes for genomic-based identification of pathogenic microorganisms.
• Environmental monitoring: Generation of probe sets for detection and discrimination of microorganisms in environmental samples.

Methodology:

Operates on complete genomic sequences to identify candidate distinguishers and applies an optimization procedure to select a near-minimum set that yields unique hybridization patterns while enforcing user-specified parameters (length, melting temperature, GC content) and constraints (redundancy, cross-hybridization).