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KMID : 0613820120220091201
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Journal of Life Science
2012 Volume.22 No. 9 p.1201 ~ p.1206
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DNase I Hypersensitive Site 8 as an Enhancer is Mapped in the Upstream Vicinity of the Crlz1 Promoter
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Choi Seong-Young
Kang Chang-Joong
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Abstract
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The Crlz1 gene is known to be expressed specifically in the pre-B cell stage during B-cell development. With regards to the specific expression of the pre-B cell stage of the Crlz1 gene, we have previously identified three pre-B cell-specific DNase I hypersensitive sites (HSS), which are named HSS8, 9, and 10, in the upstream vicinity of this gene. In this paper, we report that HSS8 increases further the strong Crlz1 promoter activity driven by HSS9/10 and, therefore, acts as its enhancer. Furthermore, HSS8 has been finely mapped between -1055 and -1159 from the transcription start site of the Crlz1 gene.
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KEYWORD
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Charged amino acid rich leucine zipper 1 (Crlz1), pre-B cell, promoter, enhancer, DNase I hypersensitive site
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