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. 1996 Jan;110(1):195–202. doi: 10.1104/pp.110.1.195

An insecticidal N-acetylglucosamine-specific lectin gene from Griffonia simplicifolia (Leguminosae).

K Zhu 1, J E Huesing 1, R E Shade 1, R A Bressan 1, P M Hasegawa 1, L L Murdock 1
PMCID: PMC157709  PMID: 8587982

Abstract

Griffonia simplicifolia II, an N-acetylglucosamine-specific legume lectin, has insecticidal activity when fed to the cowpea weevil, Callosobruchus maculatus (F.). A cDNA clone encoding G. simplicifolia II was isolated from a leaf cDNA library, sequenced, and expressed in a bacterial expression system. The recombinant protein exhibited N-acetylglucosamine-binding and insecticidal activity against cowpea weevil, indicating that glycosylation and multimeric structure are not required for these properties. These results support the hypothesis that genes of the legume lectin gene family encode proteins that function in plant defense against herbivores.

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Selected References

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