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Charge clusters signatures in prokaryotic proteomes: Temperature-dependence and distribution

机译:原核性蛋白质蛋白质中的电荷簇签名:温度依赖和分布

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The identification and the screening of Charged Clusters (CCs) residues in proteins is a key analysis to assess any quantitative structure-function correlation in proteins. Here, we present a proteome wide scan for the occurrence of (CCs) in 99292 proteins using a new tool. Finding Clusters Charge in Protein Sequences Program (FCCP). The FCCP has been employed to search CCs in 35 prokaryotic proteomes (7 Psychrophiles, 10 Mesophiles, 9 ther-mophiles and for 9 hyperthermophiles). A new repository of 855 CC has been created. Results showed that the mapped proteins containing positive and negative charge clusters are mostly transmembrane proteins while the conserved CCs within the same proteome are transposases or involved in DNA binding and integration. Interestingly, the negative charged cluster was associated to bacteria growth's temperature (p = 0.002) acting as proteins' core signature. Taken together the various results provide a consistent picture of these screened CCs in terms of its potentials functional roles.
机译:蛋白质中的带电簇(CCS)残基的鉴定和筛选是评估蛋白质中任何定量结构功能相关性的关键分析。在这里,我们使用新工具介绍99292蛋白中出现(CCS)的蛋白质组扫描。在蛋白质序列计划(FCCP)中发现群集电荷。 FCCP已被用于在35种原核蛋白质组中搜索CCS(7个心理学药物,10个心脏病,9次疗法机构和9个高热物质)。创建了一个新的855 CC存储库。结果表明,含有正电荷簇的映射蛋白主要是跨膜蛋白,而同一蛋白质组内的保守CC是转座或参与DNA结合和整合。有趣的是,负电荷的群体与蛋白质核心签名的细菌生长的温度(p = 0.002)相关。在一起,各种结果在其潜在的功能角色方面提供了这些筛选的CCS的一致性。

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