PMID- 10214964 OWN - NLM STAT- MEDLINE DCOM- 19990505 LR - 20190621 IS - 0014-5793 (Print) IS - 0014-5793 (Linking) VI - 447 IP - 2-3 DP - 1999 Mar 26 TI - Identification of the sequence responsible for the nuclear localization of human Cdc6. PG - 292-6 AB - The Cdc6 is the essential protein for the initiation of DNA replication. Cdc6 is localized in the G1 nucleus, and abnormal nuclear localization of this protein induces irregular initiation of DNA replication. We identified here that amino acids K57 and R58 in the human Cdc6 protein play an important role in the nuclear localization of the protein. The fundamental features of the mechanism regulating the localization of Cdc6 seem to be maintained in yeast, Xenopus, and human, since the amino acid sequence surrounding K57 and R58, (S/T)PXKR(L/I), is conserved in these species. Substitution of amino acid residue S54 with E and not Q blocked partially the nuclear localization of the protein, implying that the phosphorylation at S54 is involved in the regulating mechanism of the cell cycle-dependent localization of Cdc6. FAU - Takei, Y AU - Takei Y AD - Division of Molecular Cell Pharmacology, National Children's Medical Research Center, Tokyo, Japan. FAU - Yamamoto, K AU - Yamamoto K FAU - Tsujimoto, G AU - Tsujimoto G LA - eng PT - Comparative Study PT - Journal Article PL - England TA - FEBS Lett JT - FEBS letters JID - 0155157 RN - 0 (CDC6 protein, S cerevisiae) RN - 0 (CDC6 protein, human) RN - 0 (Cell Cycle Proteins) RN - 0 (DNA Primers) RN - 0 (DNA, Complementary) RN - 0 (Fungal Proteins) RN - 0 (Nuclear Localization Signals) RN - 0 (Nuclear Proteins) RN - 0 (Saccharomyces cerevisiae Proteins) SB - IM MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Binding Sites/genetics MH - Cell Cycle Proteins/chemistry/*genetics/metabolism MH - Conserved Sequence MH - DNA Primers/genetics MH - DNA Replication MH - DNA, Complementary/genetics MH - Fungal Proteins/genetics MH - HeLa Cells MH - Humans MH - Molecular Sequence Data MH - Nuclear Localization Signals/*genetics MH - Nuclear Proteins/chemistry/*genetics/metabolism MH - Saccharomyces cerevisiae/genetics MH - *Saccharomyces cerevisiae Proteins MH - Schizosaccharomyces/genetics MH - Sequence Homology, Amino Acid MH - Xenopus laevis EDAT- 1999/04/24 00:00 MHDA- 1999/04/24 00:01 CRDT- 1999/04/24 00:00 PHST- 1999/04/24 00:00 [pubmed] PHST- 1999/04/24 00:01 [medline] PHST- 1999/04/24 00:00 [entrez] AID - S0014-5793(99)00306-3 [pii] AID - 10.1016/s0014-5793(99)00306-3 [doi] PST - ppublish SO - FEBS Lett. 1999 Mar 26;447(2-3):292-6. doi: 10.1016/s0014-5793(99)00306-3.