【摘要】 依据基因调控知识对现有方法进行了综合及改进:(1)在序列搜索方面,结合多序列低分值查询与多个保守片段搜索两种方法获得匹配序列,然后序列相互打分,最后进行聚类分析;(2)在位点搜索方面,综合应用位置权重矩阵、成对寡核苷酸及Smith-Waterman等方法;(3)在分析系统方面,采用面向对象的程序设计方法建立跨平台、可扩展、基于数据库的分析系统。本方法对MHC基因家族的初步分析结果表明,能较准确地找到一些基因调控元件模块所在的区域。更多还原

【Abstract】 On the basis of the knowledge of eukaryotic gene regulation, we modified the method in three aspects: (1) Sear- ching the cis-regulatory modules (CRM) according Fasta or Blast sequence with multiple sequence and low E value, followed by mutual scoring of these sequence with Smith-Waterman algorithms and finally by clustering analysis; (2) Searching the trans- cription factor-binding site using International Union of Pure and Applied Chemistry, Position-Weight Matrix(PWM) and Dyed method; (3) Designing and implementation of data analysis based on the software in Windows 2000 and UNIX using object-oriented technology. The results of analysis of the major histocompatibility complex gene family show that this procedure may accurately locate the regions that contain some of the CRMs.更多还原