[A Sugimoto] Cell Death Lethal. w37: (null) zygotic lethal, embryonic arrest with accumulated cell corpses, body elongation defect, pharynx not connected to buccal cavity. e2501, e2510: (possibly neomorphs) similar to w37, but more severe corpse accumulation and elongation defect.
cdl-1 encodes a homolog of human hairpin (stem-loop) binding proteins (HBP/SLBP) that bind to the hairpin (stem-loop) structure in the 3' untranslated region (3' UTR) of histone mRNAs, and thus promote histone pre-mRNA processing and translation of mature histone mRNA; CDL-1 is required for normally high levels of histone gene expression, normal cell division during late larval development, embryonic viability, normal vulval morphogenesis, normally rapid apoptosis, and fertility; CDL-1 binds to the stem-loop structure in the 3' UTR of core-histone mRNA; the cdl-1 promoter is most active in dividing cells during embryogenesis and postembryonic development; both CDL-1 and human HBP contain a minimal RNA-binding domain (RBD) of roughly 73 amino acids that has no similarity with other known RNA-binding motifs.
Enables mRNA 3'-UTR binding activity. Involved in apoptotic process; embryo development; and mitotic chromosome condensation. Predicted to be located in cytoplasm. Predicted to be part of histone pre-mRNA 3'end processing complex. Expressed widely. Is an ortholog of human SLBP (stem-loop histone mRNA binding protein).