This family represents the N-terminus of treslin, a checkpoint regulator which plays a role in DNA replication preinitiation complex formation [1-2].

1: Treslin collaborates with TopBP1 in triggering the initiation of DNA replication. Kumagai A, Shevchenko A, Shevchenko A, Dunphy WG; Cell. 2010;140:349-359. PMID:20116089

2: A vertebrate gene, ticrr, is an essential checkpoint and replication regulator. Sansam CL, Cruz NM, Danielian PS, Amsterdam A, Lau ML, Hopkins N, Lees JA; Genes Dev. 2010;24:183-194. PMID:20080954