DDX18

ATP-dependent RNA helicase that plays a role in the regulation of R-loop homeostasis in both endogenous R-loop-prone regions and at sites of DNA damage. At endogenous loci such as actively transcribed genes, may act as a helicase to resolve the formation of R-loop during transcription and prevent the interference of R-loop with DNA-replication machinery. Also participates in the removal of DNA-lesion-associated R-loop. Plays an essential role for establishing pluripotency during embryogenesis and for pluripotency maintenance in embryonic stem cells. Mechanistically, prevents the polycomb repressive complex 2 (PRC2) from accessing rDNA loci and protects the active chromatin status in nucleolus (By similarity)..

Function from UniProtKB (Q9NVP1), read 2026-09-23. CC BY 4.0.