Quantitative Modeling of Protein-DNA Binding Specificity

蛋白质-DNA 结合特异性的定量建模

• 批准号: 0316255
• 负责人: Panagiotis Benos
• 金额: $ 38.98万
• 依托单位: University of Pittsburgh
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2007-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0316255&HistoricalAwards=false
• 关键词: Quantitative; Modeling; Protein; DNA; Binding

Regulatory proteins, which bind to specific DNA sequences, control the initial expression of many genes. The long-term goal of this research is to investigate the rules that govern specific DNA recognition by regulatory proteins, using a combination of biochemical experimentation and computational modeling. Initially, this project will focus on building a complete, unbiased model for the C2H2 zinc finger protein family. The C2H2 domain is common to many eukaryotic transcription factors. In order to develop the model, data will be collected through this project. Furthermore, computational tools will be developed to analyze the published genomes of yeast, worm, fly and human, in order to identify potential target genes of the members of the C2H2 family. A number of yeast predictions will be analyzed further with biochemical methods in order to assess the success of the method. Finally, the potential of this method as a general modeling method will be explored further, by attempting to model other protein families. Successful calculation and comparison of models for other protein families has the potential to reveal interfamily similarities and differences. An insight on the general rules that govern the protein-DNA recognition can be gained this way.

与特定DNA序列结合的调节蛋白控制许多基因的初始表达。 这项研究的长期目标是研究调控蛋白对特定DNA识别的规则，结合生物化学实验和计算建模。 最初，该项目将专注于为C2 H2锌指蛋白家族构建一个完整的，无偏见的模型。C2 H2结构域是许多真核转录因子共有的。 为了开发该模型，将通过该项目收集数据。 此外，还将开发计算工具来分析已发表的酵母、蠕虫、苍蝇和人类的基因组，以确定C2 H2家族成员的潜在靶基因。 一些酵母预测将进一步分析与生化方法，以评估该方法的成功。 最后，这种方法作为一种通用的建模方法的潜力将进一步探索，试图模拟其他蛋白质家族。成功的计算和其他蛋白质家族的模型比较有可能揭示家族间的相似性和差异。 通过这种方式，可以深入了解蛋白质-DNA识别的一般规则。