Xiaochao Tan, Peng Zhang, Lan Zhou, Bin Yin, Hui Pan* and Xiaozhong Peng*
* Corresponding authors: Hui Pan ph3610@gmail.com - Xiaozhong Peng pengxiaozhong@pumc.edu.cn
BMC Molecular Biology 2012, 13:27 doi:10.1186/1471-2199-13-27