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pubmed:abstractText |
Metazoan replication-dependent histone mRNAs terminate in a conserved stem-loop structure rather than a polyA tail. Formation of this unique mRNA 3' end requires Stem-loop Binding Protein (SLBP), which directly binds histone pre-mRNA and stimulates 3' end processing. The 3' end stem-loop is necessary for all aspects of histone mRNA metabolism, including replication coupling, but its importance to organism fitness and genome maintenance in vivo have not been characterized.
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