CELF4 (CUGBP, Elav-Like Family Member 4): CELF4 is a gene that encodes an RNA-binding protein belonging to the CUGBP/Elav-like family. Proteins such as CELF4 play key roles in RNA processing and the post-transcriptional regulation of gene expression. CELF4’s functions likely involve RNA metabolism and regulation, impacting various cellular processes.