Abstract
The possibility of inhibition of exogenous trypsin- and chymotrypsin-like proteinases by a proteinase inhibitor from buckwheat (IT-1) seeds has been studied. The inhibition constants for bovine trypsin and alpha-chymotrypsin and human granulocyte cathepsin G by IT-1 are equal to 1.1, 67 and 200 nm, respectively. The specificity of IT-1 with regard to its primary sequence adjacent to the active center and to its homology with inhibitors pertaining to the potato inhibitor I family has been carried out. It is concluded that by virtue of the basic nature of the P1 (Arg) residue in the active center IT-1 is not capable to bind human granulocyte elastase.
Translated title of the contribution | Inhibition of exogenous serine proteinases by a trypsin inhibitor from the buckwheat IT-1 seeds |
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Original language | Russian |
Pages (from-to) | 1530-1535 |
Number of pages | 6 |
Journal | Biokhimiia (Moscow, Russia) |
Volume | 60 |
Issue number | 9 |
State | Published - Sep 1995 |
Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry