BEIJING, March 26 (Reuters) - Guo Shuqing, head of China's new regulator for the banking and insurance sectors, has been appointed the Communist Party chief and deputy governor of the People's Bank of China (PBOC), official publication Financial News reported on Monday. As the party chief of PBOC, Guo will exert the widest influence at one of the world's most powerful central banks. Two sources with direct knowledge of the internal announcement previously told Reuters that Guo would take on those two positions. The appointment also confirms a Reuters report on Sunday that Guo can be expected to be installed soon in the role of Communist Party chief of the PBOC, according to sources. To have the same person serve as both the PBOC's party chief and a deputy governor is unusual in China's financial regulatory regime.