Comparative analysis of human, bovine, and murine Oct-4 upstream promoter sequences

Comparative analysis of human, bovine, and murine Oct-4 upstream promoter sequences The Oct-4 gene encodes a transcription factor that is specifically expressed in embryonic stem cells and germ cells of the mouse embryo. Cells that differentiate into somatic tissues lose Oct-4 expression. Regulation of Oct-4 gene transcription involves a TATA-less minimal promoter and two upstream elements: the proximal (PE) and distal enhancers (DE). We report here the nucleotide sequence of the 5′ upstream regulatory regions of the human and murine Oct-4 genes. A comparative alignment analysis between these regions and those of the bovine Oct-4 ortholog reveals four conserved regions of homology (CR 1 to 4) between these species (66–94% conservation). The 1A sequence within the mouse PE is located approximately half-way between CR 2 and CR 3. A putative Sp1/Sp3 binding site and the overlapping hormone responsive element (HRE) in CR 1 are identical in all three species. A high number of CCC(A/T)CCC motifs exhibit various levels of homology in these upstream regions. We discuss the importance of these and other sequences and present candidate factors that may bind and regulate Oct-4 gene expression. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mammalian Genome Springer Journals

Comparative analysis of human, bovine, and murine Oct-4 upstream promoter sequences

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Publisher
Springer-Verlag
Copyright
Copyright © 2001 by Springer-Verlag New York Inc.
Subject
Life Sciences; Cell Biology; Anatomy; Zoology
ISSN
0938-8990
eISSN
1432-1777
D.O.I.
10.1007/s003350010279
Publisher site
See Article on Publisher Site

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