参考文献:10.1111/j.1432-1033.1997.00900.x 摘要:Cunningham DF, O'connor B. Identification and Initial Characterization of a N‐Benzyloxycarbonyl‐Prolyl‐Prolinal (Z‐Pro‐Prolinal)‐Insensitive 7‐(N‐Benzyloxycarbonyl‐Glycyl‐Prolyl‐Amido)‐4‐Methylcoumarin (Z‐Gly‐Pro‐NH‐Mec)‐Hydrolysing Peptidase in Bovine Serum. European Journal of Biochemistry. 1997 Mar;244(3):900–3. doi: 10.1111/j.1432-1033.1997.00900.x.