Chromosomal localization of a novel retinoic acid induced geneRA28 and protein distribution of its encoded protein |
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Authors: | Zhihua Liu Aiping Luo Xiuqin Wang Min Wu |
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Affiliation: | (1) National Laboratory of Molecular Oncology, Department of Cell Biology, Cancer Institute, Chinese Academy of Medical Sciences & Peking Union Medical College, 100021 Beijing, China |
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Abstract: | GeneRA28 is a retinoic acid induced novel gene isolated in our laboratory previously. All-trans retinoic acid (ATRA) was used to induce lung adenocarcinoma cell line GLC-82, andRA28 was obtained by subtractive hybridization. Green fluorescent protein (GFP) has emerged as a unique tool for examining introcellular phenomena in living cells. GFP possesses an intrinsic fluorescence at 488 nm that does not require other co-factors. In this report, an eukaryotic expression plasmid pEGFP-C1-RA28 was constructed and transfected with parental cell line GLC-82 to analyze protein expression and its distribution in living cells. Moreover, radiation hybrid (RH) technique was used to localizeRA28 to the chromosome. The results show that geneRA28 is mapped to the chromosome 19q13.1 region, its encoded protein is distributed on cell membrane. All the results further demonstrate that GFP and RH techniques are accurate, fast, repetitive, and will be powerful methods for investigating the gene and protein localization. |
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Keywords: | green fluorescent protein (GFP) radiation hybrid (RH) gene localization protein localization RA28 |
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