RBM14 is a multifunctional RNA-binding protein with distinct roles in transcriptional regulation, cell cycle control, and innate immunity. As a coactivator, isoform 1 enhances transcription through interactions with NCOA6 and CITED1, while isoform 2 acts as a repressor to modulate these activities 1. RBM14 maintains mitotic integrity by suppressing aberrant centriolar protein complex assembly, preventing the formation of STIL-CPAP complexes that could otherwise trigger ectopic centriole-like structures 2. In innate immunity, RBM14 assembles into the HDP-RNP complex, a ribonucleoprotein platform required for IRF3 phosphorylation and activation of the cGAS-STING pathway in response to foreign DNA 3. The protein also regulates alternative splicing and phase separation of transcriptional condensates, sustaining androgen-receptor signaling under androgen deprivation in prostate cancer 4. In cancer contexts, RBM14 dysregulation is clinically significant. In lung adenocarcinoma, RBM14 is epigenetically upregulated by YY1-EP300-mediated histone acetylation, promoting glycolytic reprogramming and correlating with poorer survival 5. Recent evidence suggests RBM14 acts as an Amplification-Related Gain Of Sensitivity gene in lung and breast cancers, where its overexpression is toxic through altered DNA damage response and STING signaling, yet paradoxically associates with improved survival in radiation-treated cohorts 6. RBM14 also regulates cellular O-GlcNAcylation through OGA protein stability, a mechanism implicated in cancer progression 7.