piRNA Ping-Pong Cycle: Germline Transposon Silencing
Interactive 3D model of the piRNA ping-pong amplification cycle: PIWI-clade Argonaute proteins (Aub/Ago3) slice complementary transposon and piRNA-cluster transcripts, each cleavage minting a new piRNA that feeds the opposite complex and silences transposable elements in the germline.
Watch the piRNA ping-pong amplification loop run inside a stylised germline nuage granule: transposon mRNA transcripts spawn from the genome, PIWI-clade Argonaute complexes (Aub and Ago3) patrol the cytoplasm, and every complementary encounter triggers a slicer cleavage that destroys the target transcript while minting a brand-new piRNA for the opposite complex. Tune transposon transcription, piRNA cluster output, slicer efficiency and complex turnover to see the system swing between runaway transposon expression and tight, self-sustaining silencing — the same feedback loop that protects animal germlines from insertional mutagenesis.
Watch the piRNA ping-pong amplification loop run in 3D: PIWI-clade Argonaute complexes Aub and Ago3 slice complementary transposon and piRNA-cluster transcripts, each cleavage minting a new piRNA that feeds the opposite complex and silences transposable elements in the germline.
3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install