The distribution and dynamics of proteins in living cells can provide important clues as to the function and regulation of cell cycle. The most common and successful method for real-time observations and studies of cell cycle is to use cell cycle markers of the special proteins. However, these proteins undergo dynamic changes in their subcellular distribution and interactions throughout the cell cycle. The analysis of such cell cycle dependent changes in living cells have been hampered by the lack of suitable cell cycle markers that allow identification of the various cell cycle stages. Creative Biomart develops and provides useful molecular protein tools for your cell cycle research applications.