The affinity purified rabbit polyclonal anti-methylated lysine antibody was developed using a technique unique to ImmuneChem. The methylated lysine antibodies are affinity purified using N-methyl (epsilon amino group) lysine on agarose as the affinity matrix. The antibodies could be utilized for detection, quantization and isolation of proteins with methylated lysine residues.
Western blot analysis of the methylated histone from melanoma cells with anti-methylated lysine (anti-MeK, ICP0501). Histones were isolated with cold 0.1N HCl extraction followed by the method.
A: blot with 0.5 ug/mL of anti-MeK (ICP0501) in TBSt and blocked with synthetic methylated BSA 100 ug/mL).
B: blot with 0.5 ug.mL of anti-MeK (ICP0501) in TBSt.
Species
Rabbit
Formulation
250 µg/mL in Tris-phosphate buffer, 50% Glycerol.
Immunogen
Methylated KLH conjugates
Purification
The antibody was immunoaffinity purified with epsilon N-methyl lysine on agarose
Specificity
The antibody recognizes proteins or peptides methylated on the lysine residues (mono, di-methylysine). There is no cross-reaction with acetylated proteins. The cross-reactivity with tri-methyl-lysine has not been tested.
Applications
ELISA, WB, Immunohistochemistry.
Scientific Description
MeK is a conserved post-translational modification and is an important biochemical process for many protein-protein interactions. It is found in many proteins, for example calmodulin, cytochrome C, chromosomal proteins, histones, non-histones as well as neural storage body proteins. It has been suggested that methylation of lysine plays an important role in gene silencing.[1-3]
Storage & Stability
Store product at –20 oC. Three years from date of shipping.
References
1. Im, H. et al. J. Biol. Chem. 2003. 278: 18346-18352. 2. Ng, H. H. et al. J. Biol. Chem.2002. 277: 34655-34657. 3. Zegerman, P. et al. J. Biol. Chem. 2002. 277: 11621-11624.