PingPongPro

PingPongPro detects ping-pong cycle activity of piwi-interacting RNAs (piRNAs) in small RNA-Seq data to identify piRNA-mediated transposon silencing.

Key Features:

• Detection of Ping-Pong Cycle Activity: Scans small RNA-Seq data for signatures of the ping-pong amplification cycle between piRNAs.
• Multi-factor Empirical-Probability Algorithm: Implements an algorithm that integrates empirical probabilities within a multi-factor model to identify transposons suppressed via the ping-pong mechanism.
• Biological Mechanism Interpretation: Interprets ping-pong signatures as evidence of piRNA-guided endonuclease activity on mRNAs of actively transcribed transposons.

Scientific Applications:

• piRNA-mediated Transposon Silencing Analysis: Identify transposons targeted by piRNAs in small RNA-Seq datasets.
• Genomic Stability and Transposable Element Regulation: Provide evidence linking piRNA activity to suppression of transposable element mobilization and prevention of transposable element–induced mutations.

Methodology:

Analyzes small RNA-Seq datasets to detect patterns indicative of the ping-pong cycle; the algorithm assesses empirical probabilities across multiple factors to identify piRNA-guided suppression of transposons.