ar protein， which inhibits DNA replication and is degraded during the mitotic phase of the cell cycle. Geminin controls replication by binding to the licensing factor Cdt1， and is involved in neural differentiation. In addition， Geminin directly interacts with Six3 and Hox homeodomain proteins during embryogenesis and inhibits their functions. Geminin can also promote DNA replication. Geminin has 2 roles in 2 different stages of the cell cycle: Geminin is a negative regulator of DNA replication during the “S phase” of the cell cycle. Inhibition of Geminin during the “S phase” （by RNAi） results in an additional round of replication of portions of the genome. During the “M phase” of the cell cycle （mitosis） Geminin stabilizes the replication factor Cdt1 promoting DNA replication during the next cell cycle. Moreover， inhibition of Geminin during mitosis （by RNAi） causes destabilization of Cdt1 protein and impairment of DNA replication during the next cell cycle. Geminin thus guarantees that only one round of replication occurs during each cell cycle. It was discovered that Geminin is overexpressed in a number of malignancies and cancer cell lines. This maintains the concept that Geminin has also a positive role in DNA replication and cell cycle progression. Geminin accumulates through S， G2 and M phases of the cell cycle but is absent during the G1 phase. During the metaphase/anaphase transition of mitosis Geminin levels decrease.
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來源宿主
大腸桿菌中重組表達
溶解建議
Sterile Filtered colorless solution. The protein solution contains 20mM Tris pH 8， 100mM NaCl and 10% glycerol.
保存建議
Geminin although stable 4℃ for 4 weeks， should be stored desiccated below -18℃.
For long term storage it is recommended to add a carrier protein （0.1% HSA or BSA）.
Please prevent freeze-thaw cycles.
