. . . . "MASS SPECTROMETRY" . "CLEAVAGE OF INITIATOR METHIONINE" . "ACETYLATION AT ALA-2" . "PROTEIN SEQUENCE OF 2-13; 19-49; 52-60; 69-95; 155-193; 201-248; 334-343; 349-377; 386-393; 422-428; 459-485 AND 489-526" . . . .