Anti-Menin/MEN1 Antibody Picoband®

The MEN1 gene encodes menin, a nuclear scaffold protein that regulates gene transcription by coordinating chromatin remodeling. It is mapped to 11q13.1. MEN1 is considered to act as a tumor suppressor gene. It has been found that that MEN1 inactivation by antisense RNA antagonizes transforming growth factor-beta-mediated cell growth inhibition. Overexpression of MEN1 in an inducible cell culture system downregulated the proximal promoter. In vitro studies have shown that MEN1 is localized to the nucleus, possesses two functional nuclear localization signals, and inhibits transcriptional activation by JunD. What’s more, MEN1 was essential to maintain MLL-associated myeloid transformation.

E.coli-derived human Menin recombinant protein (Position: P301-L615) . Human Menin shares 93% and 94% amino acid (aa) sequence identity with mouse and rat Menin, respectively.

Essential component of a MLL/SET1 histone methyltransferase (HMT) complex, a complex that specifically methylates 'Lys-4' of histone H3 (H3K4) . Functions as a transcriptional regulator. Binds to the TERT promoter and represses telomerase expression. Plays a role in TGFB1-mediated inhibition of cell-proliferation, possibly regulating SMAD3 transcriptional activity. Represses JUND-mediated transcriptional activation on AP1 sites, as well as that mediated by NFKB subunit RELA. Positively regulates HOXC8 and HOXC6 gene expression. May be involved in normal hematopoiesis through the activation of HOXA9 expression (By similarity) . May be involved in DNA repair. .

1. Canaff, L., Vanbellinghen, J.-F., Kaji, H., Goltzman, D., Hendy, G. N. Impaired transforming growth factor-beta (TGF-beta) transcriptional activity and cell proliferation control of a menin in-frame deletion mutant associated with multiple endocrine neoplasia type 1 (MEN1) . J. Biol. Chem. 287: 8584-8597, 2012. 2. Kaji, H., Canaff, L., Lebrun, J.-J., Goltzman, D., Hendy, G. N. Inactivation of menin, a Smad3-interacting protein, blocks transforming growth factor type beta signaling. Proc. Nat. Acad. Sci. 98: 3837-3842, 2001. 3. Zablewska, B., Bylund, L., Mandic, S. A., Fromaget, M., Gaudray, P., Weber, G. Transcription regulation of the multiple endocrine neoplasia type 1 gene in human and mouse. J. Clin. Endocr. Metab. 88: 3845-3851, 2003.

Store at -20°C for one year from date of receipt. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for six months. Avoid repeated freeze-thaw cycles.