Crystal structure of the rad9-rad1-hus1 DNA damage checkpoint complex--implications for clamp loading and regulation.
Dore, A.S., Kilkenny, M.L., Rzechorzek, N.J., Pearl, L.H.(2009) Mol Cell 34: 735-745
- PubMed: 19446481 
- DOI: 10.1016/j.molcel.2009.04.027
- Primary Citation of Related Structures:  
3G65 - PubMed Abstract: 
Rad9, Rad1, and Hus1 form a heterotrimeric complex (9-1-1) that is loaded onto DNA at sites of DNA damage. DNA-loaded 9-1-1 activates signaling through the Chk1 arm of the DNA damage checkpoint response via recruitment and stimulation of ATR. Additionally, 9-1-1 may play a direct role in facilitating DNA damage repair via interaction with a number of DNA repair enzymes ...