Cyclin L1 (CCNL1)

CCN-L1; BM-001; Ania-6a

Cyclin L1 (CCNL1)
Cyclin L, a novel cyclin related to the C-type cyclins that are involved in regulation of RNA polymerase II (pol II) transcription. Cyclin L also contains a COOH-terminal dipeptide repeat of alternating arginines and serines, a hallmark of the SR family of splicing factors. cyclin L interacts with p110 PITSLRE kinase, and that cyclin L antibody co-immunoprecipitates a kinase activity from HeLa nuclear extracts that phosphorylates the carboxyl-terminal domain (CTD) of pol II and splicing factor SC35, and is inhibited by the cdk inhibitor p21. Cyclin L antibody inhibits the second step of RNA splicing in vitro, and recombinant cyclin L protein stimulates splicing under suboptimal conditions.Cyclin L and its associated kinase are thus new members of the pre-mRNA processing machinery.

Organism species: Homo sapiens (Human)

Organism species: Mus musculus (Mouse)

Organism species: Rattus norvegicus (Rat)