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KMID : 0578320070230030391
Molecules and Cells
2007 Volume.23 No. 3 p.391 ~ p.397
Identification and Characterization of Two Novel Variants of the DUF1208 Protein FAM92A1
Ruan Xu Zhi

Yan Fei
Zhao Xin Yu
Wang Chung Ting
Song Ming
Yang Han Suo
Deng Hong Xin
Wei Yu Quan
Abstract
FAM92A1 (named FAM92A1-271) belongs to the family of proteins with conserved DUF1208 domains. Its function remains elusive. We identified two novel transcript variants (FAM92A1-251, FAM92A1-289) of FAM92A1. The presence of these transcripts in cancerous and normal cells, as well as their influence on cell prolifera-tion and apoptosis, were investigated. The subcellular location of FAM92A1 was determined by fluorescence microscopy. We found that FAM92A1-271 and FAM92A1- 289 were highly expressed in both normal and cancerous cells, but FAM92A1-251 was only expressed at a mo-derate level in both types of cell. Overexpression of FAM92A1-271, FAM92A1-251 and FAM92A1-289 in-hibited cell proliferation, caused S-phase arrest and induced apoptosis. Subcellular localization showed that FAM92A1 localizes to the nucleus. Our results show that FAM92A1 has different splicing variants, and that it may take part in regulating cell proliferation and apoptosis
KEYWORD
Alternative Splicing, Apoptosis, FAM92A1, RT-PCR, Subcellular Localization
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