cdc45 Antibody
Source Reactivity Background References- Product Name
- cdc45 Antibody
- Chemical Name
- cdc45 Antibody
- Synonyms
- cdc45 Antibody;Rabbit Polyclonal CDC45 Antibody
- CBNumber
- CB35616272
- Formula Weight
- 0
- MOL File
- Mol file
cdc45 Antibody Chemical Properties,Usage,Production
Source
Rabbit
Reactivity
Human;Mouse;Rat;Monkey
Background
The initiation of DNA replication in mammalian cells is a highly coordinated process that ensures duplication of the genome only once per cell division cycle. Origins of replication are dispersed throughout the genome and their activities are regulated via the sequential binding of pre-replication and replication factors. The origin recognition complex is thought to bind to chromatin throughout the cell cycle. The pre-replication complex forms in late mitosis/early G1 phase with the binding of CDT1 and cdc6 to the origin, which allows binding of the heterohexameric MCM2-7 complex. The MCM complex is thought to be the replicative helicase and formation of the Pre-RC is referred to as chromatin licensing. Subsequent initiation of DNA replication requires the activation of the S-phase promoting kinases cdk2 and cdc7. Cdc7 phosphorylates MCM proteins bound to chromatin and, in conjunction with CDT1, recruits the replication factor cdc45. Cdc45 is required for formation of pre-initiation complexes at the G1/S transition and for activation of replication origins. The level of cdc45 protein expression is associated with the proliferative status of the cell or tissue. Terminally differentiated and senescent cells lack cdc45 and highly proliferative cell lines express high levels of cdc45.
References
[1] Okuno, Y. et al. (2001) EMBO J 20, 4263-77.
[2] McNairn, A.J. et al. (2005) Exp Cell Res 308, 345-56.
[3] Bell, S.P. and Dutta, A. (2002) Annu Rev Biochem 71, 333-74.
[4] Tsuji, T. et al. (2006) Mol Biol Cell 17, 4459-472.
[5] Ballabeni, A. et al. (2009) J Biol Chem 284, 3028-36.
[6] Pollok, S. et al. (2007) FEBS J 274, 3669-84.
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