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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Nd1, a novel murine Kelch family protein, may play the role of a housekeeping gene.

The murine Nd1 gene encodes a novel Kelch family protein and expresses two forms of mRNA, long (Nd1-L) and short (Nd1-S), in various tissues. We characterized the genomic organization of the Nd1 gene, and found that Nd1-L and Nd1-S consist of 16 and nine exons respectively, and that exons I-VIII are shared between them. Three transcription initiation sites were identified in the 5'-flanking region and the most 3' side (+1) is likely to be a major one. Promoter analysis revealed that the region between positions -247 and -86 was sufficient for expression, and that two Sp1- binding sites and one NF-kappaB-binding site in the region were critical for promoter activity. Furthermore, the promoter region lacks a TATA and a CAAT box and has a highly GC-rich region with two important Sp1-binding sites. These characteristics of the Nd1 gene promoter are similar to the properties of housekeeping genes.[1]


  1. Nd1, a novel murine Kelch family protein, may play the role of a housekeeping gene. Kang, M., Matsudo, Y., Sasagawa, K., Tokuhisa, T., Hatano, M. Biochim. Biophys. Acta (2001) [Pubmed]
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