OligoHeatMap

OligoHeatMap calculates melting temperatures (T(m)) for oligomers across multiple aligned sequences and visualizes them as color-coded heat maps to assess primer and probe hybridization specificity.

Key Features:

• Melting Temperature Estimation: Calculates T(m) for oligomers across multiple aligned sequences to assess the thermal stability of DNA duplexes formed between primers or probes and target sequences.
• Graphical Representation: Converts T(m) values into color-coded heat maps that highlight regions of high and low melting temperatures across aligned sequences, aiding interpretation of binding efficiency and specificity.
• Integration with Phylogenetic Analysis: Produces outputs compatible with TreeDyn for overlaying T(m) heat maps on phylogenetic trees to contextualize hybridization properties within evolutionary relationships.

Scientific Applications:

• PCR Primer Design: Predicts T(m) values for candidate primers across multiple sequences to support selection of primers with suitable binding characteristics.
• Probe Specificity Assessment: Evaluates probe hybridization specificity by comparing T(m) values between target and non-target sequences.
• Evolutionary Studies: Maps T(m) heat maps onto phylogenetic trees to reveal patterns of sequence conservation and divergence related to hybridization properties.

Methodology:

Computes quantitative T(m) estimates across multiple aligned sequences and renders them as color-coded heat maps, explicitly considering multiple-sequence contexts and noting that mismatches alone do not always predict T(m), thus combining quantitative T(m) estimates with visualization.