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Sirt3 is a NAD + -dependent protein deacetylase mainly localized in mitochondria. Recent studies indicate that the murine Sirt3 gene expresses different transcript variants resulting in three possible Sirt3 protein isoforms with variable lengths at the N-terminus: M1 (aa 1–334), M2 (aa 15–334), and M3 (aa 78–334). In this study, we stably expressed these variants in several cell lines. We...
A novel 114-kDa zinc finger protein, ZEC, has been found by cDNA cloning and characterized. ZEC was strongly expressed in the testis, liver and kidney, and also in embryonic stem cells. Epitope-tagged experiments indicated nuclear localization of ZEC. ZEC contained 18 C2H2 zinc fingers which were organized in two clusters. A ZEC binding DNA sequence, C/GA/TA/TGGTTGGTTGC, which we have designated the...
In the mouse, β-1,6-N-acetylglucosaminyltransferase (IGnT) forms branches in poly-N-acetyllactosamines, which are good scaffolds for oncodevelopmental cell-surface antigens and recognition markers. There are two isoforms of IGnT, IGnT A and B, which are produced by alternative splicing of the IGnT gene; the unique portion is encoded by exon 1 and common portion is encoded by exons 2 and 3. Thus, the...
The Sak gene encodes a serine/threonine kinase, which is a member of the Polo family of mitotic regulators. Sak transcripts are present in S/G2/M phase cells, and in proliferating cell layers of the mouse embryo and adult tissues. In this report, we have characterized the murine Sak gene structure, the Sak chromosomal location, and identified the promoter. The murine Sak gene is located on the proximal...
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