part of has part nucleoplasm nuclear pre-replicative complex DNA replication preinitiation complex A protein-DNA complex assembled at eukaryotic DNA replication origins immediately prior to the initiation of DNA replication. The preinitiation complex is formed by the assembly of additional proteins onto an existing prereplicative complex. In budding yeast, the additional proteins might include Cdc45p, Sld2p, Sld3p, Dpb11p, DNA polymerases, and others; in fission yeast the GINS complex is present. cellular_component pre-IC GO:0031261 protein-DNA complex nuclear protein-containing complex