生物信息学
生物信息學
생물신식학
BIOINFORMATICS
2010年
1期
47-51
,共5页
李任峰%田香勤%何启盖%胡建和%赵朴%李学斌%王三虎
李任峰%田香勤%何啟蓋%鬍建和%趙樸%李學斌%王三虎
리임봉%전향근%하계개%호건화%조박%리학빈%왕삼호
猪胸膜肺炎放线杆菌%TbpB基因%同源建模
豬胸膜肺炎放線桿菌%TbpB基因%同源建模
저흉막폐염방선간균%TbpB기인%동원건모
Actionobacillus pleuropneumoniae%TbpB%Homology modeling
为了深入研究猪胸膜肺炎放线杆菌(Actinobacillus pleuropneumonie,App)转铁结合蛋白基因(Transferrin Binding Proteins,Tbp)的生物学特性,采用生物信息学方法,对GenBank中的5株App的TbpB的核酸及其氨基酸序列进行比对,选取其中的中国湖北分离株(JL03)对其分子结构、理化性质及功能域、蛋白质二级和三级结构等重要参数进行了预测和分析,并在三级结构的基础上进行了同源建模.结果表明,不同APP菌株之间核酸序列相似性较大,而氨基酸序列存在较大差异,二级结构以延伸链和随机卷曲为主要构件,其空间结构与脑膜炎双球菌GNA1870蛋白相似性较高,以此为模板成功构建了三维结构分子模型,为TbpB基因功能的深入研究提供了线索和参考依据.
為瞭深入研究豬胸膜肺炎放線桿菌(Actinobacillus pleuropneumonie,App)轉鐵結閤蛋白基因(Transferrin Binding Proteins,Tbp)的生物學特性,採用生物信息學方法,對GenBank中的5株App的TbpB的覈痠及其氨基痠序列進行比對,選取其中的中國湖北分離株(JL03)對其分子結構、理化性質及功能域、蛋白質二級和三級結構等重要參數進行瞭預測和分析,併在三級結構的基礎上進行瞭同源建模.結果錶明,不同APP菌株之間覈痠序列相似性較大,而氨基痠序列存在較大差異,二級結構以延伸鏈和隨機捲麯為主要構件,其空間結構與腦膜炎雙毬菌GNA1870蛋白相似性較高,以此為模闆成功構建瞭三維結構分子模型,為TbpB基因功能的深入研究提供瞭線索和參攷依據.
위료심입연구저흉막폐염방선간균(Actinobacillus pleuropneumonie,App)전철결합단백기인(Transferrin Binding Proteins,Tbp)적생물학특성,채용생물신식학방법,대GenBank중적5주App적TbpB적핵산급기안기산서렬진행비대,선취기중적중국호북분리주(JL03)대기분자결구、이화성질급공능역、단백질이급화삼급결구등중요삼수진행료예측화분석,병재삼급결구적기출상진행료동원건모.결과표명,불동APP균주지간핵산서렬상사성교대,이안기산서렬존재교대차이,이급결구이연신련화수궤권곡위주요구건,기공간결구여뇌막염쌍구균GNA1870단백상사성교고,이차위모판성공구건료삼유결구분자모형,위TbpB기인공능적심입연구제공료선색화삼고의거.
To lucubrate bionomics of App TbpB,five APP strains were selected from GenBank,analyzed and predicted by the tools of bioinformatics in the following aspects: the composition and alignment of nucleic acid sequences and amino acid sequences,molecular structure,physical and chemical characters,secondary and tertiary structure of protein and so on. The results as following: There were much more similarity in nucleic acid sequences among five APPs than amino acid sequences,extended strand and random coil were main component of all secondary structures. The 3D models of App TbpB were constructed based on the template of GNA1870 of meningococcus.