Long serial analysis of gene expression in the yeast phase of Candida albicans / 解放军医学杂志

ABSTRACT

Objective To construct a library of long serial analysis of gene expression (LongSAGE) and investigate the characteristics of gene expression in the yeast phase of C. albicans. Methods A LongSAGE library was constructed with long serial analysis of gene expression (LongSAGE). Results A total of 17 773 tags, representing specific 7 333 transcripts, were extracted from 1 000 sequence files in the yeast phase of C. albicans. Tags matching single gene accounted for 16.65%, tags matching multiple genes accounted for 6.59%, tags for hypothetical protein accounted for 16.27%, tags for genome and cosmid accounted for 1.64%, and novel tags accounted for 58.86%. Eleven tags in 33 tags whose expression frequencies exceeded 35 may be new expression sequences. Conclusion LongSAGE is not only a powerful method in investigating the gene expression profiling, allowing the analysis of the expression of thousands of transcripts in a quantitative manner without prior sequence information, but also in finding new genes.