Histone RNA hairpin-binding protein (SLBP)

RNA-binding protein included in the histone pre-mRNA processing. Binds the stem-loop structure of replication-dependent histone pre-mRNAs and leads to efficient 3'-end processing by stabilizing the complex between histone pre-mRNA and U7 small nuclear ribonucleoprotein (snRNP), through the histone downstream element (HDE).

Plays an important role in targeting older histone mRNA from the nucleus to the cytoplasm and to the translation machinery. Stabilizes mature histone mRNA and could be involved in cell-cycle regulation of histone gene expression.