ZFP36L1 (E6L6S) Rabbit mAb recognizes endogenous levels of total ZFP36L1 protein. This antibody does not cross-react with ZFP36L2 protein.

Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro281 of human ZFP36L1 protein.

ZFP36L1, also known as butyrate response factor-1 (BRF1), and ZFP36L2, also known as butyrate response factor-2 (BRF2), both belong to the TIS11 family of CCCH zinc-finger proteins (1). This family of proteins, which also includes tristetraprolin (TTP), bind to AU-rich elements (AREs) found in the 3'-untranslated regions of mRNAs and promote deadenylation and rapid degradation by the exosome (2,3). These proteins play a critical role in cell growth control by regulating the mRNA turnover of multiple cytokines, growth factors, and cell cycle regulators, including GM-CSF, TNFα, IL-2, IL-3, and IL-6 (4,5). Deregulated ARE-mRNA stability can contribute to both inflammation and oncogenic transformation (6-8). Insulin-induced stabilization of ARE-containing transcripts is mediated by Akt/PKB phosphorylation of ZFP36L1 at Ser92, which results in binding by 14-3-3 protein and inactivation of ZFP36L1 (9). ZFP36L1 and L2 have also been shown to promote cell quiescence in developing B lymphocytes, promoting VDJ recombination (10).