WesternBreeze® Chemiluminescent Kits detect proteins that have been immobilized on membranes (nitrocellulose or PVDF) following western transfer or bound directly了解更多信息
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货号
数量
WB7106
1 kit
货号 WB7106
价格(CNY)
8,480.00
1 kit
添加至购物车
数量:
1 kit
价格(CNY)
8,480.00
1 kit
添加至购物车
WesternBreeze® Chemiluminescent Kits detect proteins that have been immobilized on membranes (nitrocellulose or PVDF) following western transfer or bound directly from solution (dot blots). Detection is accomplished with a ready-to-use CDP-Star® chemiluminescent substrate for alkaline phosphatase. Protein bands can be captured either by X-ray film or CDP-Star® compatible imaging system. WesternBreeze® Chemiluminescent Kit offers:
• High specificity, clean background • Ultra-sensitivity-femtogram levels detectable • Long-lasting signals-up to 5 days • Results in less than 3 hours • Permanent photographic image
Why is the actual band size on a western blot different from the predicted size of the protein?
Western blotting is based on the separation of proteins by their size on a gel. However, migration of proteins through the gel matrix is also affected by other factors, which may cause the observed band size to be different from the predicted size.
Common causes are:
-Post-translational modification; for example phosphorylation and glycosylation increase the size of the protein
-Post-translation cleavage; many proteins are synthesized as precursor proteins, and then cleaved to give the active form
-Multimers, for example dimerization of a protein. This is usually prevented under reducing conditions, although strong interactions can result in the appearance of higher bands
-Splice variants; alternative splicing may result in different sized proteins being produced from the same gene
-Relative charge; the composition of amino acids (charged vs. non-charged)