#Q07820
4170
Product Information
Product Usage Information
CST recommends transfection with 100 nM Mcl-1 siRNA I 48 to 72 hours prior to cell lysis. For transfection procedure, follow protocol provided by the transfection reagent manufacturer. Please feel free to contact CST with any questions on use.
Each vial contains the equivalent of 100 transfections, which corresponds to a final siRNA concentration of 100 nM per transfection in a 24-well plate with a total volume of 300 μl per well.
Storage
Specificity / Sensitivity
Species Reactivity:
Human
Product Description
Background
Mcl-1 is an anti-apoptotic member of the Bcl-2 family originally isolated from the ML-1 human myeloid leukemia cell line during phorbol ester-induced differentiation along the monocyte/macrophage pathway (1). Similar to other Bcl-2 family members, Mcl-1 localizes to the mitochondria (2), interacts with and antagonizes pro-apoptotic Bcl-2 family members (3), and inhibits apoptosis induced by a number of cytotoxic stimuli (4). Mcl-1 differs from its other family members in its regulation at both the transcriptional and posttranslational level. First, Mcl-1 has an extended amino-terminal PEST region, which is responsible for its relatively short half-life (1,2). Second, unlike other family members, Mcl-1 is rapidly transcribed via a PI3K/Akt dependent pathway, resulting in its increased expression during myeloid differentiation and cytokine stimulation (1,5-7). Mcl-1 is phosphorylated in response to treatment with phorbol ester, microtubule-damaging agents, oxidative stress, and cytokine withdrawal (8-11). Phosphorylation at Thr163, the conserved MAP kinase/ERK site located within the PEST region, slows Mcl-1 protein turnover (10) but may prime the GSK-3 mediated phosphorylation at Ser159 that leads to Mcl-1 destabilization (11). Mcl-1 deficiency in mice results in peri-implantation lethality (12). In addition, conditional disruption of the corresponding mcl-1 gene shows that Mcl-1 plays an important role in early lymphoid development and in the maintenance of mature lymphocytes (13).
- Kozopas, K.M. et al. (1993) Proc Natl Acad Sci USA 90, 3516-20.
- Yang, T. et al. (1995) J Cell Biol 128, 1173-84.
- Sato, T. et al. (1994) Proc Natl Acad Sci USA 91, 9238-42.
- Zhou, P. et al. (1997) Blood 89, 630-43.
- Wang, J.M. et al. (1999) Mol Cell Biol 19, 6195-206.
- Jourdan, M. et al. (2003) Oncogene 22, 2950-9.
- Chao, J.R. et al. (1998) Mol Cell Biol 18, 4883-98.
- Domina, A.M. et al. (2000) J Biol Chem 275, 21688-94.
- Inoshita, S. et al. (2002) J Biol Chem 277, 43730-4.
- Domina, A.M. et al. (2004) Oncogene 23, 5301-15.
- Maurer, U. et al. (2006) Mol Cell 21, 749-60.
- Rinkenberger, J.L. et al. (2000) Genes Dev 14, 23-7.
- Opferman, J.T. et al. (2003) Nature 426, 671-6.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
Trademarks and Patents
Limited Uses
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