<;P>;PROBLEM TO BE SOLVED: To provide an antifungal agent having excellent safety and selectivity, hardly causing side effects, and hardly allowing resistant bacteria to appear. <;P>;SOLUTION: The antifungal agent contains lectin having a Gly-X-(Tyr/Trp)-Gly-X-X-Gly-Gly motif in the N-terminal region, and a (Leu/Ile/Val)-Asp-(Ser/Ala)-Ile-(Gly/Ser) motif in the C-terminal region, and also having mannose binding specificity and antifungal activity as an active ingredient. <;P>;COPYRIGHT: (C)2010,JPO&INPIT