LARGE-SCALE CDNA SEQUENCING FOR ANALYSIS OF QUANTITATIVE AND QUALITATIVE ASPECTS OF GENE-EXPRESSION

被引:454
作者
OKUBO, K [1 ]
HORI, N [1 ]
MATOBA, R [1 ]
NIIYAMA, T [1 ]
FUKUSHIMA, A [1 ]
KOJIMA, Y [1 ]
MATSUBARA, K [1 ]
机构
[1] OSAKA UNIV,INST MOLEC & CELLULAR BIOL,1-3 YAMADA OKA,SUITA,OSAKA 565,JAPAN
关键词
D O I
10.1038/ng1192-173
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Large scale sequencing of cDNAs provides a complementary approach to structural analysis of the human genome by generating expressed sequence tags (ESTs). We have initiated the large-scale sequencing of a 3'-directed cDNA library from the human liver cell line HepG2, that is a non-biased representation of the mRNA population. 982 random cDNA clones were sequenced yielding more than 270 kilobases. A significant portion of the identified genes encoded secretable proteins and components for protein-synthesis. The abundance of cDNA species varied from 2.2% to less than 0.004%. Fifty two percent of the mRNA were abundant species consisting of 173 genes and the rest were non-abundant, consisting of about 6,600 genes.
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页码:173 / 179
页数:7
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