Replication-dependent histone genes contain no introns, and the only pre-mRNA processing step is an endonucleoytic cleavage to form the 3′ end of the mRNA. By contrast, the replacement variant ...

a mechanism for distinguishing exons and introns. Intron recognition always takes place during the splicing event itself, which is catalyzed by the large spliceosomal machinery comprising five RNA ...

Request permissions for this article.

Department of Microbiology, Immunology, and Molecular Genetics, University of California, Los Angeles, Los Angeles, CA, United States Post-transcriptional mechanisms, such as alternative splicing and ...