This family consists of several eukaryotic origin recognition complex subunit 6 (ORC6) proteins. Despite differences in their structure and sequences among eukaryotic replicators, ORC is a conserved feature of replication initiation in all eukaryotes. ORC-related genes have been identified in organisms ranging from S. pombe to plants to humans. All DNA replication initiation is driven by a single conserved eukaryotic initiator complex termed he origin recognition complex (ORC). The ORC is a six protein complex. The function of ORC is reviewed in [1].

1: The origin recognition complex: from simple origins to complex functions. Bell SP; Genes Dev 2002;16:659-672. PMID:11914271

2: Mesenteric thrombosis associated with oral contraceptives. Collier TM, Coopwood TB, Treadaway JP; Angiology. 1975;26:518-520. PMID:1053592

3: Identification and characterization of the human ORC6 homolog. Dhar SK, Dutta A; J Biol Chem. 2000;275:34983-34988. PMID:10945994