This putative domain is found to be the most conserved region in mediator of replication checkpoint protein 1.

1: Mrc1 transduces signals of DNA replication stress to activate Rad53. Alcasabas AA, Osborn AJ, Bachant J, Hu F, Werler PJ, Bousset K, Furuya K, Diffley JF, Carr AM, Elledge SJ; Nat Cell Biol. 2001;3:958-965. PMID:11715016

2: S-phase checkpoint proteins Tof1 and Mrc1 form a stable replication-pausing complex. Katou Y, Kanoh Y, Bando M, Noguchi H, Tanaka H, Ashikari T, Sugimoto K, Shirahige K; Nature. 2003;424:1078-1083. PMID:12944972