| abstract |
PCT No. PCT/JP96/01402 Sec. 371 Date Jan. 21, 1997 Sec. 102(e) Date Jan. 21, 1997 PCT Filed May 24, 1996 PCT Pub. No. WO96/37603 PCT Pub. Date Nov. 28, 1996Nucleoside-5'-phosphate ester is produced inexpensively and efficiently by allowing an acid phosphatase, especially an acid phosphatase having a lowered phosphomonoesterase activity to act under a condition of pH 3.0 to 5.5 on a nucleoside and a phosphate group donor selected from the group consisting of polyphosphoric acid or a salt thereof, phenylphosphoric acid or a salt thereof, and carbamyl phosphate or a salt thereof to produce nucleoside-5'-phosphate ester, and collecting it. |