[HTML][HTML] Rescue of cyclin D1 deficiency by knockin cyclin E

Y Geng, W Whoriskey, MY Park, RT Bronson… - Cell, 1999 - cell.com
Y Geng, W Whoriskey, MY Park, RT Bronson, RH Medema, T Li, RA Weinberg, P Sicinski
Cell, 1999cell.com
D-type cyclins and cyclin E represent two very distinct classes of mammalian G1 cyclins. We
have generated a mouse strain in which the coding sequences of the cyclin D1 gene
(Ccnd1) have been deleted and replaced by those of human cyclin E (CCNE). In the tissues
and cells of these mice, the expression pattern of human cyclin E faithfully reproduces that
normally associated with mouse cyclin D1. The replacement of cyclin D1 with cyclin E
rescues all phenotypic manifestations of cyclin D1 deficiency and restores normal …
Abstract
D-type cyclins and cyclin E represent two very distinct classes of mammalian G1 cyclins. We have generated a mouse strain in which the coding sequences of the cyclin D1 gene (Ccnd1) have been deleted and replaced by those of human cyclin E (CCNE). In the tissues and cells of these mice, the expression pattern of human cyclin E faithfully reproduces that normally associated with mouse cyclin D1. The replacement of cyclin D1 with cyclin E rescues all phenotypic manifestations of cyclin D1 deficiency and restores normal development in cyclin D1–dependent tissues. Thus, cyclin E can functionally replace cyclin D1. Our analyses suggest that cyclin E is the major downstream target of cyclin D1.
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