Amino acid sequences of trypsin inhibitors from oriental pickling melon (Cucumis melo L. var. Conomon Makino) seeds.
Three inhibitors (CMCTI-I, II, and III) were isolated from oriental pickling melon (Cucumis melo L. var. Conomon Makino) seeds by acetone precipitation, gel filtration, and reversed phase chromatography. The amino acid sequences of these inhibitors were: [table; see text] The reactive sites (P1 and P1' sites) of these inhibitors are presumed to be the Lys-Ile indicated by an arrow, comparing them with other squash family inhibitors. All three inhibitors can inhibit lysyl endopeptidase and trypsin at the enzyme-inhibitor ratio of 1:1.
Department of Chemistry and Materials Technology, Faculty of Engineering and Design, Kyoto Institute of Technology, Japan.
J
J
Nishino
R
R
Takano
K
K
Kamei-Hayashi
H
H
Minakata
K
K
Nomoto
S
S
Hara
D000595:Amino Acid Sequence; D000596:Amino Acids / Q000032:analysis; D002850:Chromatography, Gel; D002851:Chromatography, High Pressure Liquid; D008969:Molecular Sequence Data; D010940:Plant Proteins / Q000737:chemistry* / Q000302:isolation & purification; D010945:Plants, Edible / Q000737:chemistry; D012639:Seeds / Q000737:chemistry; D014361:Trypsin Inhibitors / Q000737:chemistry* / Q000302:isolation & purification
D000596:Amino Acids; D010940:Plant Proteins; D014361:Trypsin Inhibitors