Fig. 2From: Isolation of biologically active peptides from the venom of Japanese carpenter bee, Xylocopa appendiculata MALDI-TOF MS spectra of the crude venom of X. appendiculata. Positive mode, Matrix: α-CHCA. a m/z range from 1000 to 5000. m/z ions: 1939.3, [M + H]+ for Xac-1, 1900.3 [M + H]+ for Xac-2. b m/z range from 5000 to 20000. m/z ions: 16508, [M + H]+ ion for PLA2 Back to article page