PrimerStation

PrimerStation designs primer sets tailored for multiplex genomic PCR applications within the human genome.

Key Features:

• Physicochemical hybridization model: Calculates the hybridization ratio of primers in liquid solution to predict sequence hybridization states under stringent conditions.
• Non-specific binding and cross-reaction prediction: Predicts conditions that minimize non-specific binding and cross-reactions during PCR amplification.
• Genome-scale precomputation: Precomputes candidate primers against the human genome using a massively parallel computing system with 100 CPUs (SunFire 15 K) approximately three months in advance.
• Expanded temperature search: Searches for primers within an expanded temperature range to reduce the likelihood of cross-reactions in multiplex PCR.
• Heuristic rule incorporation: Applies user-configurable heuristic filters including exclusion of SNPs in primer sequences, avoidance of poly(A) and CA-repeat regions within PCR products, and elimination of primers with potential secondary structures.

Scientific Applications:

• Multiplex genomic PCR primer design: Generating high-specificity primer sets for multiplex PCR across the human genome.
• Reduction of non-specific amplification: Designing primers and conditions that reduce non-specific binding and cross-reactions during PCR amplification.
• Experimental validation: Validation of primer specificity demonstrated by experiments on randomly selected primers for chromosome X that produced specific PCR products without error.

Methodology:

Uses a physicochemical model to calculate primer hybridization ratios in liquid solution and predict sequence hybridization states under stringent conditions; precomputes candidate primers against the human genome using a massively parallel system (100 CPUs, SunFire 15 K) approximately three months in advance; searches primer candidates across an expanded temperature range and applies heuristic filters including exclusion of SNPs in primer sequences, avoidance of poly(A) and CA-repeat regions in PCR products, and elimination of primers with potential secondary structures.