The Cdc6 protein is an essential component of pre-replication complexes (preRCs), which assemble at origins of DNA replication during the G1 phase of the cell cycle (1). Cdc6p and cdc18+ are unstable proteins that are essential and rate limiting for the initiation of DNA replication in Saccharomyces cerevisiae and Schizosaccharomyces pombe, respectively. They participate in checkpoint controls that ensure DNA replication is completed before mitosis is initiated (2). It has been concluded that expression of Cdc6 is regulated in response to mitogenic signals though transcriptional control mechanisms involving E2F proteins, and that Cdc6 is required for initiation of DNA replication in mammalian cells (3). Cdc6 is believed to be phosphorylated at Serine 54 during S phase and functions as a chromatin-bound signal that prevents reformation of prereplication complexes (4).
Applications:
Suitable for use in Immunocytochemistry and Western Blot. Other applications not tested.
Recommended Dilution:
Western Blot: 1:1000-1:2000
Immunocytochemistry: 1:100-1:250
Optimal dilutions to be determined by the researcher.
Storage and Stability:
May be stored at 4 degrees C for short-term only. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Aliquots are stable for at least 12 months. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.