|標題:||A regularly spaced and self-revealing protein ladder for anti-tag Western blot analysis|
Roffler, Steve R.
Chen, Fang Ming
Department of Biological Science and Technology
Department of Electronics Engineering and Institute of Electronics
|關鍵字:||14-Epitope tag protein ladder;Epitope tags;Anti-epitope tag antibodies;Protein molecular estimation;Sodium dodecyl sulfate-polyacrylamide gel electrophoresis;Western blot analysis|
|摘要:||We designed a protein ladder (hereafter referred to as "Mega-tag") that contains 14 of the most commonly used epitope tags fused to molecular weight markers. The Mega-tag ladder can be simultaneously visualized when anti-tag antibodies are used to detect epitope-tagged recombinant proteins in Western blots. The logarithm of molecular weights and relative mobility of the Mega-tag protein ladder are highly correlated (R-2 = 0.997 +/- 0.00232), indicating that the dye-free Mega-tag protein ladder is accurate. It can also serve as a positive control for anti-epitope tag immunoblots. The Mega-tag protein ladder should provide a convenient and precise tool for Western blot analysis. (c) 2012 Elsevier Inc. All rights reserved.|