Baozhen Tang, Wei Dong, Pei Liang*, Xuguo Zhou* and Xiwu Gao
* Corresponding authors: Pei Liang liangcau@cau.edu.cn - Xuguo Zhou xuguozhou@uky.edu
BMC Molecular Biology 2012, 13:32 doi:10.1186/1471-2199-13-32