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Genesis. 2000 Nov-Dec;28(3-4):111-24.

Related function of mouse SOX3, SOX9, and SRY HMG domains assayed by male sex determination.

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1
The Jackson Laboratory, Bar Harbor, ME 04609, USA.

Abstract

Sox genes encode proteins related to each other, and to the sex determining gene Sry, by the presence of a DNA binding motif known as the HMG domain. Although HMG domains can bind to related DNA sequences, Sox gene products may achieve target gene specificity by binding to preferred target sequences or by interacting with specific partner proteins. To assess their functional similarities, we replaced the HMG box of Sry with the HMG box of Sox3 or Sox9 and tested whether these constructs caused sex reversal in XX mice. Our results indicate that such chimeric transgenes can functionally replace Sry and elicit development of testis cords, male patterns of gene expression, and elaboration of male secondary sexual characteristics. This implies that chimeric SRY proteins with SOX HMG domains can bind to and regulate SRY target genes and that potential SRY partner factor interactions are not disrupted by HMG domain substitutions. genesis 28:111-124, 2000.

PMID:
11105052
PMCID:
PMC2700755
[Indexed for MEDLINE]
Free PMC Article
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