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Published on: February 14, 2018
Cicerin and arietin, novel chickpea peptides with different antifungal potencies
1Department of Biochemistry, Faculty of Medicine, The Chinese University of Hong Kong, Basic Medical Sciences Building, Shatin, NT, Hong Kong, China.
Abstract:
Two antifungal peptides with novel N-terminal sequences, designated cicerin and arietin were isolated from seeds of the chickpea (Cicer arietinum), respectively. Both peptides were adsorbed on Affi-gel blue gel and CM-Sepharose and exhibited a molecular weight of approximately 8.2 and 5.6 kDa, respectively. Arietin was more strongly adsorbed on CM-Sepharose than cicerin and manifested a higher translation-inhibiting activity in a rabbit reticulocyte lysate system and a higher antifungal potency toward Mycosphaerella arachidicola, Fusarium oxysporum and Botrytis cinerea. Both were devoid of mitogenic and anti-HIV-1 reverse transcriptase activities.

