植物凝集素及其在抗虫植物基因工程中的应用

植物凝集素是一类具有特异糖结合活性的蛋白，具有一个或多个可以与糖或寡聚糖特异可逆结合的非催化结构域。其糖结合活性是针对外源寡糖，参与植物的防御反应。本文综述了有关植物凝集素分子生物学的研究进展，介绍了植物凝集素的分类、糖结合特性、近年来有关植物凝集素蛋白晶体结构的研究，及其与糖结合能力相关的生物学功能。并对植物凝集素在抗虫植物基因工程中的应用现状及发展前景做了阐述。 Abstract:Plant lectins are proteins possessing at least one non-catalytic domain that binds reversibly to specific mono-or oligosaccharides.They distinguish themselves from other plant proteins by the ability of carbohydrate binding.Most plant lectins are directed to bind foreign polysacchride.Plant lectin is believed to take part in the defense responses against invader.In this paper we presented a review on the classification,characters,functions,crystal structure and,functions related to the carbohydrate binding activity.The status and prospect of plant lectins utilization were also discussed.

Plant Lectin and Its Application in Insect-Resistant Plant Genetic Engineering

Plant lectins are proteins possessing at least one non-catalytic domain that binds reversibly to specific mono-or oligosaccharides. They distinguish themselves from other plant proteins by the ability of carbohydrate binding. Most plant lectins are directed to bind foreign polysacchride. Plant lectin is believed to take part in the defense responses against invader. In this paper we presented a review on the classification, characters, functions, crystal structure and, functions related to the carbohydrate binding activity. The status and prospect of plant lectins utilization were also discussed.