Methylation of nuclear DNA in Physarum polycephalum
نویسندگان
چکیده
منابع مشابه
DNA methylation during differentiation of a lower eukaryote, Physarum polycephalum.
Starvation-induced differentiation of the slime mould Physarum polycephalum is accompanied by continuous methylation of DNA. No stable changes in the overall level of DNA methylation are evident, but a gene known to be transcribed specifically during differentiation is subject to increased methylation. Inhibitors of DNA methylation preclude differentiation of P. polycephalum, although they are ...
متن کاملPeriodic organisation of foldback sequences in Physarum polycephalum nuclear DNA.
Nuclear DNA from the slime mould Physarum polycephalum is shown to contain interspersed inverted repeat sequences, such that denatured fragments of DNA containing pairs of these sequences form intra-chain duplexes under appropriate conditions. The organisation and distribution of the nucleotide sequences responsible for the formation of foldback structures in Physarum DNA have been investigated...
متن کاملAcetylation and methylation sites in histone H4 from Physarum polycephalum.
Histone H4 has been isolated and purified from plasmodia of Physarum polycephalum. The four major fragments produced by hydrolysis of H4 by acetic acid were separated and the complete amino acid sequence of two of them was determined. By analogy with calf H4, these peptides are at the C-terminus and give the sequence from residue 68 to the C-terminus (residue 102). In this 35 residue sequence t...
متن کاملNuclear acidic protein changes during differentiation in Physarum polycephalum.
A class of acidic nuclear phosphoproteins has been isolated throughout the mitotic cycle and at two points during differentiation in the slime mold Physarum polycephalum. The electrophoretic profiles of these proteins are reproducible and unchanging throughout the mitotic cycle, but reproducible changes occur during differentiation. The proteins are rapidly synthesized after mitosis, and their ...
متن کاملAssociation of newly replicated DNA with the nuclear matrix of Physarum polycephalum.
We have studied the role of the nuclear matrix in DNA replication in a naturally synchronized eucaryote, Physarum polycephalum. When P. polycephalum. When P. polycephalum macroplasmodia were pulse labeled with 3H-thymidine, the DNA remaining tightly associated with the matrix was highly enriched in newly synthesized DNA. This enrichment was found both in nuclei that had just initiated DNA repli...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1980
ISSN: 0264-6021
DOI: 10.1042/bj1910859