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[人类基因外显子-内含子结构的预测与计算机分析]

[Prediction and computer analysis of the exon-intron structure of human genes].

作者信息

Mironov A A, Gel'fand M S

机构信息

State Research Center, GosNIIgenetika, Moscow, 113545 Russia.

出版信息

Mol Biol (Mosk). 2004 Jan-Feb;38(1):82-91.

Abstract

This review of the original works on computer analysis of the human genome considers the development of methods to predict the exon-intron structure of genes and analysis of alternative splicing. Prediction of the gene structure is based on homology between the gene product and a known protein or between the genomic sequences of the gene and its homolog from another organism. The methods were tested and proved highly efficient. Human gene splicing was analyzed with original methods and EST databases. Genes with alternative splicing were for the first time shown to account for no less than 35% total genes. Alternative splicing was compared for the human and mouse genomes. Species-specific isoforms were demonstrated for 50% alternatively spliced genes (25% total genes).

摘要

这篇关于人类基因组计算机分析原始著作的综述,探讨了预测基因外显子 - 内含子结构的方法发展以及可变剪接分析。基因结构的预测基于基因产物与已知蛋白质之间的同源性,或者基于该基因的基因组序列与其来自另一生物体的同源基因之间的同源性。这些方法经过测试,证明效率很高。利用原始方法和EST数据库对人类基因剪接进行了分析。首次表明,具有可变剪接的基因占总基因数的比例不少于35%。对人类和小鼠基因组的可变剪接进行了比较。结果显示,50%的可变剪接基因(占总基因数的25%)存在物种特异性异构体。

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