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Complete amino acid sequence of the protease inhibitor from buckwheat seeds
M A Belozersky1, Y E Dunaevsky, A X Musolyamov
1A.N. Belozersky Institute of Physico-Chemical Biology, Moscow State University, Russian Federation.
FEBS Letters
|September 11, 1995
Abstract:
The complete amino acid sequence of protease inhibitor BWI-1 from buckwheat (Fagopyrum esculentum Moench) seeds has been established by automatic Edman degradation and mass spectrometry. The molecule of the inhibitor consists of 69 amino acid residues, with a molecular mass calculated as 7743.8 Da. The active site of the inhibitor contains an Arg45-Asp46 bond. Analysis of the amino acid sequence suggests that the buckwheat seed protease inhibitor is a member of the proteinase inhibitor I family.