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XB-ART-13771
Mol Gen Genet 1998 Nov 01;2602-3:295-9. doi: 10.1007/s004380050898.
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Mouse homolog of the yeast origin recognition complex subunit ORC1 and chromosomal localization of the cognate mouse gene Orc1.

Zisimopoulou P , Staib C , Nanda I , Schmid M , Grummt F .


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ORC1 encodes a subunit of the eukaryotic origin recognition complex in yeast, which has been shown to play a crucial role in chromosomal DNA replication and transcriptional silencing. We have identified a mouse protein closely related to Saccharomyces cerevisiae ORC1 as well as to the human, Xenopus and Drosophila homologs. MmORC1 has putative cyclin-dependent phosphorylation sites and a nucleotide triphosphate-binding motif. We have mapped the gene locus of the murine Orc1 gene to chromosome 4, band D. Conservation of structures among members of the ORC1-related proteins suggests that these proteins play a key role in the intiation of DNA replication in all eukaryotes.

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Species referenced: Xenopus
Genes referenced: orc1