In molecular biology, CLRN1 antisense RNA 1 (CLRN1-AS1) (previously known as clarin 1 opposite strand, CLRN1OS or USH critical region pseudogene, UCRP) is a human gene encoding a long non-coding RNA. It was originally identified in a screen to identify the genes responsible for Usher syndrome type 3 and presumed to be an unprocessed pseudogene.[1]
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.