MCL-1 Monoclonal Antibody (LVUBKM), eBioscience™, Invitrogen™

Mouse Monoclonal Antibody

Product Code	Brand	Quantity
15597566	Invitrogen 14-9047-80
15507576	Affymetrix eBioscience 14-9047-82	100 μg

Description

Description: This LVUBKM monoclonal antibody recognizes human and mouse myeloid cell leukemia sequence 1 (Mcl-1). Mcl-1 is an anti-apoptotic member of the Bcl-2 family of proteins important for regulation of cell survival/apoptosis. Mcl-1 is primarily localized to the outer membrane of mitochondria where it prevents cytochrome c release via dimerization with other Bcl-2 family members such as Bim. Although it is expressed in both immune and non-immune cells, highest levels of Mcl-1 expression are seen in hematopoietic lineage cells. PI3K activation of AKT results in destabilization and degradation of GSK3 beta, which prevents phosphorylation of Mcl-1 on S159 and its subsequent ubiquitnation and degradation. Mice conditionally lacking Mcl-1 in lymphocytes showed that Mcl-1 is essential during early lymphoid development and for the maintece of mature lymphocytes. Applications Reported: This LVUBKM antibody has been reported for use in immunohistochemical staining of formalin-fixed paraffin embedded tissue sections and intracellular staining followed by flow cytometric analysis. (Fluorochrome-conjugated LVUBKM is recommended for use in intracellular flow cytometry.). Applications Tested: This LVUBKM antibody has been tested by immunohistochemistry of formalin-fixed paraffin embedded tissue using low or high pH antigen retrieval and can be used at less than or equal to 5 μg/mL.

MCL1 (Myeloid cell leukemia-1) belongs to the Bcl-2 family and is involved in programing, differentiation and concomitant maintenance of cell viability, but not of proliferation. Isoform 1 of MCL1 inhibits apoptosis while isoform 2 promotes it. The carboxy terminal of MCL1 and bcl-2 share significant sequence homology. Expression of MCL1 is increased upon exposure of ML-1 cells to various types of DNA damaging agents (e.g. ionizing radiation, μgtraviolet radiation, and alkylating drugs) along with increases in GADD45 and Bax and a decrease in bcl-2. Enhanced expression of MCL1, prominently associated with mitochondria, complements the continued expression of bcl-2 in ML-1 cells undergoing differentiation. Like bcl-2, MCL1 has the capacity to promote cell viability under conditions that otherwise cause apoptosis. While the mechanism by which MCL1 inhibits apoptosis is not known, it is thought that it may heterodimerize and neutralize pro-apoptotic members of the Bcl-2 family such as Bim or Bak. MCL1 was originally identified in differentiating myeloid cells, but has since been shown to be expressed in multiple cell types. MCL1 is essential for embryogenesis and for the development and maintenance of B and T lymphocytes in animals. MCL1 exists as at least two distinct isoforms designated MCL1L and MCL1S. In marked contrast to the larger isoform of MCL1, overexpression of MCL1S promotes cell death.

For Research Use Only.