Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1976-2-9
pubmed:abstractText
A study has been made of the levels of 6-methylaminopurine and 5-methyl-cytosine in the DNA of Bacillus subtilis during thymine deprivation. While DNA synthesis was inhibited by thymine deprivation, DNA methylation continued. Base analysis indicated that this aberrant methylation involved an increase solely in the amount of 5-methylcytosine. These aberrant 5-methylcytosine residues were removed from the DNA during continued growth of bacteria in medium lacking thymine. In contrast, 5-methylcytosine residues synthesized during normal growth were relatively unaffected by thymine deprivation. The results are interpreted to indicate that the extensive DNA damage which occurs during thymine deprivation is due in part to exonuclease digestion of regions of DNA containing aberrant 5-methylcytosine residues.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0022-1287
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
347-54
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1975
pubmed:articleTitle
Aberrant DNA methylation under conditions of thymine deprivation in Bacillus subtilis.
pubmed:publicationType
Journal Article