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Isolation, characterization, and chromosomal mapping of a novel cDNA clone encoding human selenium binding protein

✍ Scribed by Peter W.G. Chang; Stephen K.W. Tsui; Choong-chin Liew; Cheuk-yu Lee; Mary M.Y. Waye; Kwok-pui Fung

Publisher: John Wiley and Sons
Year: 1997
Tongue: English
Weight: 276 KB
Volume: 64
Category: Article
ISSN: 0730-2312
DOI: 10.1002/(sici)1097-4644(199702)64:2<217::aid-jcb5>3.0.co;2-#

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✦ Synopsis

We have isolated the full-length human 56 kDa selenium binding protein (hSP56) cDNA clone, which is the human homolog of mouse 56 kDa selenium binding protein. The cDNA is 1,668 bp long and has an open reading frame encoding 472 amino acids. The calculated molecular weight is 52.25 kDa and the estimated isoelectric point is 6.13. Using Northern blot hybridization, we found that this 56 kDa selenium binding protein is expressed in mouse heart with an intermediate level between those found in liver/lung/kidney and intestine. We have also successfully expressed hSP56 in Escherichia coli using the expression vector-pAED4. The hSP56 gene is located at human chromosome 1q21-22.

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