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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The regulation of embryonic patterning and DNA replication by geminin.

Geminin is a multifunctional protein. After DNA replication is initiated during a cell cycle, geminin binds to Cdt1, one of the key DNA replication licensing factors. This highly regulated interaction sequestrates Cdt1, thus preventing DNA rereplication in the same cell cycle. In addition, geminin directly interacts with Six3 and Hox homeodomain proteins during embryogenesis and inhibits their functions. The regulation of Hox function by geminin also involves a transient association with the Hox repressive Polycomb complex. The functions of geminin to obstruct key molecules of both cell proliferation and embryonic development suggest a competitive coordination of these two processes.[1]


  1. The regulation of embryonic patterning and DNA replication by geminin. Pitulescu, M., Kessel, M., Luo, L. Cell. Mol. Life Sci. (2005) [Pubmed]
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