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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
13
|
pubmed:dateCreated |
1984-8-20
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pubmed:abstractText |
A systematic study on the incidence and patterns of cytosine methylation in the fungi has been carried out by restriction and nearest-neighbor analysis of DNAs isolated from undifferentiated cells of several fungal species. With respect to DNA modification, the fungi appear to be a heterogeneous group, with a 5-methylcytosine content ranging from undetectable levels (less than or equal to 0.1% of cytosine residues methylated in 18 out of 20 species tested) to low but detectable levels (e.g. congruent to 0.2 and congruent to 0.5% of the total cytosines methylated in Sporotrichum dimorphosporum and Phycomyces blakesleeanus, respectively). In the species where it has been detected, 5-methylcytosine is located mostly at CpG doublets, and the methylated sites are clustered in long tracts (10-30 kilobase pairs) separated from essentially unmethylated regions. This methylated compartment, which comprises a small fraction (1-11%) of the total DNA, contains at least a specific set of repetitive sequences. These results contrast with the higher 5-methylcytosine content found in the fungus Physarum polycephalum and in vertebrates and higher plants.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:day |
10
|
pubmed:volume |
259
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pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
8033-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6330093-5-Methylcytosine,
pubmed-meshheading:6330093-Base Sequence,
pubmed-meshheading:6330093-Cytosine,
pubmed-meshheading:6330093-DNA, Fungal,
pubmed-meshheading:6330093-DNA Restriction Enzymes,
pubmed-meshheading:6330093-Fungi,
pubmed-meshheading:6330093-Methylation,
pubmed-meshheading:6330093-Species Specificity
|
pubmed:year |
1984
|
pubmed:articleTitle |
DNA methylation in the fungi.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|