Two novel crystal protein genes from a highly mosquitocidal Bacillus thuringiensis serovar medellin strain were cloned and sequenced. The corresponding proteins, Cry29A and Cry30A, were nontoxic when tested individually against the mosquito species bioassayed (Aedes aegypti, Culex pipiens and Anopheles stephensi). However, Cry29A synergized the toxicity of Cry11Bb against Aedes aegypti by a four-fold factor.

中文翻译：

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Cry29A和Cry30A：从苏云金芽孢杆菌血清型麦德林分离的两种新型δ-内毒素。

克隆并测序了来自高度灭蚊的苏云金芽孢杆菌血清型麦德林菌株的两个新的晶体蛋白基因。当分别对经过生物测定的蚊虫物种（埃及伊蚊，埃及库蚊和斯蒂芬按蚊）进行测试时，相应的蛋白质Cry29A和Cry30A无毒。但是，Cry29A通过四倍因子协同了Cry11Bb对埃及伊蚊的毒性。