Proteinase inhibitors in Brazilian leguminosae
Mem. Inst. Oswaldo Cruz
;
86(supl.2): 207-209, 1991. ilus, tab
Article
in English
| LILACS
| ID: lil-623972
ABSTRACT
Serine proteinase inhitors, in the seeds of several Leguminosae from the Pantanal region (West Brazil), were studied using bovine trypsin, a digestive enzyme, Factor XIIa and human plasma Kallikrein, two blood clotting factors. The inhibitors were purified from Enterolobium contortisiliquum (Mr=23,000), Torresea cearensis (Mr = 13,000), Bauhinia pentandra (Mr = 20,000) and Bauhinia bauhinioides (Mr = 20,000). E. contortisiliquum inhibitor inactivates all three enzymes, whereas the T. cearensis inhibitor inactivates trypsin and Factor XSSa, but does nor affect plasma kallikrein; both Bauhinia inhibitors, on the other hand, inactivate trypsin and plasma kallikrein but only the Bpentandra inhibitor affects Factor XIIa. Ki values were calculated between 10 [raised to the power of] -7 and 10 [raised to the power of] -8 M.
Full text:
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Index:
LILACS (Americas)
Main subject:
Blood Coagulation
/
Bauhinia
/
Proteinase Inhibitory Proteins, Secretory
Country/Region as subject:
South America
/
Brazil
Language:
English
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
Tropical Medicine
/
Parasitology
Year:
1991
Type:
Article
/
Congress and conference
Affiliation country:
Brazil
Institution/Affiliation country:
Escola Paulista de Medicina/BR
/
UFMS/BR
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