MOSCOW, Nov 3 (Reuters) - American depositary shares (ADS) in Russian real estate database Cian will begin trading on the Moscow Exchange on Nov. 5, the bourse said on Wednesday, subject to trading also beginning on the New York Stock Exchange. Two sources told Reuters in September that Cian’s offering could be in the region of $300 million-400 million. (Reporting by Andrey Ostroukh; Writing by Alexander Marrow; Editing by Jan Harvey)