DNA-synthesis and DNA-methylation in the spleen of immunized mice. 1975

D Lutz, and H Kröger, and W Uecker, and D Kubsch, and E Mertens

Methylation of spleen DNA was investigated in mice immunized with bovine serum albumin. At the time of the highest incorporation of deoxythymidine into DNA -24 hours after antigen application--there is an elevated DNA methylation rate as shown by the transfer of the methyl group of methionine to DNA cytosine as well as by the conversion of DNA cytosine to DNA 5-methyl-cytosine. There is no difference in the methylation rate between bulk DNA and satellite DNA.

UI MeSH Term Description Entries
D008715 Methionine A sulfur-containing essential L-amino acid that is important in many body functions. L-Methionine,Liquimeth,Methionine, L-Isomer,Pedameth,L-Isomer Methionine,Methionine, L Isomer
D008745 Methylation Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed) Methylations
D003596 Cytosine A pyrimidine base that is a fundamental unit of nucleic acids.
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D005260 Female Females
D000225 Adenine A purine base and a fundamental unit of ADENINE NUCLEOTIDES. Vitamin B 4,4, Vitamin B,B 4, Vitamin
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013154 Spleen An encapsulated lymphatic organ through which venous blood filters.
D013936 Thymidine A nucleoside in which THYMINE is linked to DEOXYRIBOSE. 2'-Deoxythymidine,Deoxythymidine,2' Deoxythymidine
D013941 Thymine One of four constituent bases of DNA. 5-Methyluracil,5 Methyluracil

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