JGB futures edge up on Treasuries, 5-yr sale awaited

TOKYO Aug 18 (Reuters) - Japanese government bond futures edged up on Tuesday after U.S. Treasuries gained the previous day in the wake of a sharp slide on Wall Street.

* Cash JGBs were capped by profit taking after the previous day's rally which took the benchmark yield to a one-month low. Selling by participants making room on their books ahead of a 2.3 trillion yen ($24.3 billion) five-year auction later in the day also kept bond prices in a tight range.

* The five-year yield edged up 0.5 basis point to 0.675 percent JP5YTN=JBTC and the benchmark 10-year yield was unchanged at 1.340 percent.

* September 10-year JGB futures 2JGBv1 climbed 0.12 point to 138.71 after hitting 138.83, their highest since July 14. (Reporting by Shinichi Saoshiro; Editing by Joseph Radford)