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PmC47-8株OmpH蛋白结构的初步预测 被引量:1
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作者 繁萍 张瑞强 +3 位作者 张卫 丰琳琅 陈忍霞 赵静 《安徽农业科学》 CAS 2012年第16期8918-8921,共4页
[目的]初步预测牦牛源多杀性巴氏杆菌C47-8株(PmC47-8)OmpH蛋白结构特点。[方法]对PmC47-8型菌株OmpH基因的测序结果进行在线BLAST比对、信号肽预测、二级结构预测及蛋白特性等方面的分析。[结果]PmC47-8株OmpH基因与已公布的81条OmpH... [目的]初步预测牦牛源多杀性巴氏杆菌C47-8株(PmC47-8)OmpH蛋白结构特点。[方法]对PmC47-8型菌株OmpH基因的测序结果进行在线BLAST比对、信号肽预测、二级结构预测及蛋白特性等方面的分析。[结果]PmC47-8株OmpH基因与已公布的81条OmpH基因相似性在84%~99%间;OmpH蛋白序列中存在信号肽,切割位点在第20号和21号氨基酸残基之间;OmpH蛋白二级结构预测中,折叠结构占49.8%,环状结构占50.2%;推测OmpH蛋白有7个O型糖基化位点,分别是位于第2、45、48、330、716、721、723号位的氨基酸残基,2个N型糖基化位点,即第15和35号位的氨基酸残基。[结论]该蛋白可能存在于细胞菌膜的外侧,而非跨膜蛋白。 展开更多
关键词 pmc47-8 OmpH蛋白结构 预测
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Prediction of Protein OmpH in Structure of C47-8 Pasteurella multocida
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作者 繁萍 张瑞强 +3 位作者 张卫 丰琳琅 陈忍霞 赵静 《Agricultural Science & Technology》 CAS 2012年第6期1186-1189,1206,共5页
[Objective] This study aimed to predict the structure of protein OmpH from Pasteurella multocida C47-8 (PmC47-8) strain of yak. [Method] Online BLAST, signal peptide prediction, secondary structure prediction and pr... [Objective] This study aimed to predict the structure of protein OmpH from Pasteurella multocida C47-8 (PmC47-8) strain of yak. [Method] Online BLAST, signal peptide prediction, secondary structure prediction and protein characteristics of sequencing result of gene OmpH from PmC47-8 strain were analyzed. [Result] The similarities of gene OmpH from PmC47-8 with the published 81 OmpH genes were between 84% and 99%; a signal peptide was found with the cleavage sites between 20 and 21 in the polypeptide; secondary structure prediction showed that folding structure accounted for 49.8% and loop structure for 50.2%; it predicted that there were 7 O-glycosylation sites in OmpH protein with the amino acid residual sites of 2, 45, 48, 330, 716, 721, 723, respectively, and 2 N-glycosylation sites with the amino acid residual sites of 15 and 35. [Conclusion] This study lays the foundation for the study on the immunity of OmpH gene from yak. 展开更多
关键词 pmc47-8 strain OmpH protein structure PREDICTION
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