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    Phosphorylation and activation of 13S condensin by Cdc2 in vitro (1998)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1998-10-17
    Description: 13S condensin is a multisubunit protein complex essential for mitotic chromosome condensation in Xenopus egg extracts. Purified 13S condensin introduces positive supercoils into DNA in the presence of topoisomerase I and adenosine triphosphate in vitro. The supercoiling activity of 13Scondensin was regulated by mitosis-specific phosphorylation. Immunodepletion, in vitro phosphorylation, and peptide-mapping experiments indicated that Cdc2 is likely to be the kinase that phosphorylates and activates 13S condensin. Multiple Cdc2 phosphorylation sites are clustered in the carboxyl-terminal domain of the XCAP-D2 (Xenopus chromosome-associated polypeptide D2) subunit. These results suggest that phosphorylation of 13Scondensin by Cdc2 may trigger mitotic chromosome condensation in vitro.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kimura, K -- Hirano, M -- Kobayashi, R -- Hirano, T -- CA45508/CA/NCI NIH HHS/ -- GM53926/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 1998 Oct 16;282(5388):487-90.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, Post Office Box 100, 1 Bungtown Road, Cold Spring Harbor, NY 11724, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/9774278" target="_blank"〉PubMed〈/a〉
    Keywords: Adenosine Triphosphatases/chemistry/*metabolism ; Amino Acid Sequence ; Animals ; CDC2 Protein Kinase/*metabolism ; Chromosomes/chemistry/*metabolism ; DNA, Circular/chemistry/metabolism ; DNA, Superhelical/*chemistry ; DNA-Binding Proteins/chemistry/*metabolism ; Enzyme Activation ; Interphase ; *Mitosis ; Molecular Sequence Data ; Multiprotein Complexes ; Nucleic Acid Conformation ; Peptide Mapping ; Phosphorylation ; Xenopus
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 2
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    Yeast origin recognition complex functions in transcription silencing and DNA replication (1993)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1993-12-17
    Description: The genes encoding two of the subunits of the Saccharomyces cerevisiae origin recognition complex (ORC) have been isolated. Characterization of a temperature-sensitive mutation in the gene encoding the 72-kD subunit of ORC (ORC2) indicates that this protein complex functions early in the DNA replication process. Moreover, ORC derived from orc2ts cells is defective for DNA binding. Others have shown a defect in orc2ts cells in transcriptional silencing at the silent mating-type loci. Consistent with this finding, ORC specifically binds to each of the four mating-type silencers identified in yeast. These findings support the hypothesis that ORC acts as an initiator protein at yeast origins of DNA replication and suggest that ORC also functions in the determination of transcriptional domains.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Bell, S P -- Kobayashi, R -- Stillman, B -- AI20460/AI/NIAID NIH HHS/ -- CA13106/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 1993 Dec 17;262(5141):1844-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Cold Spring Harbor Laboratory, NY 11724.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8266072" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; *DNA Replication ; DNA, Fungal/biosynthesis ; *DNA-Binding Proteins ; Fungal Proteins/chemistry/*genetics/metabolism ; *Gene Expression Regulation, Fungal ; Genes, Fungal ; Genes, Mating Type, Fungal ; Molecular Sequence Data ; Mutation ; Origin Recognition Complex ; *Replicon ; Repressor Proteins/chemistry/*genetics/metabolism ; S Phase ; Saccharomyces cerevisiae/cytology/*genetics/metabolism ; Saccharomyces cerevisiae Proteins ; Temperature ; Transcription, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
    Location Call Number Expected Availability
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