On March 31, 2020, Tsukamoto, Yumiko; Tamura, Toshiki; Maeda, Yumi; Miyake, Kensuke; Ato, Manabu published an article.Application In Synthesis of N-Methyl-7H-purin-6-amine The title of the article was N6-methylated adenine on the target sites of mamA from Mycobacterium bovis BCG enhances macrophage activation by CpG DNA in mice. And the article contained the following:
CpG motifs in DNA sequences are recognized by Toll-like receptor 9 and activate immune cells. Bacterial genomic DNA (gDNA) has modified cytosine bases (5-methylcytosine [5 mC]) and modified adenine bases (6-methyladenine [6 mA]). 5 mC inhibits immune activation by CpG DNA; however, it is unclear whether 6 mA inhibits immune activation by CpG DNA. Mycobacterium bovis BCG (BCG) has three adenine methyltransferases (MTases) that act on specific target sequences. In this study, we examined whether the 6 mA at the target sites of adenine MTases affected the immunostimulatory activity of CpG DNA. Our results showed that only 6 mA located at the target sequence of mamA, an adenine MTase from BCG, enhanced interleukin (IL)-12p40 production from murine bone marrow-derived macrophages (BMDMs) stimulated with CpG DNA. Enhancement of IL-12p40 production in BMDMs was also observed when BMDMs were stimulated with CpG DNA ligated to oligodeoxynucleotides (ODNs) harboring 6 mA. Accordingly, we then evaluated whether gDNA from adenine MTase-deficient BCG was less efficient with regard to stimulation of BMDMs. Indeed, gDNA from a mamA-deficient BCG had less ability to activate BMDMs than that from wild-type BCG. We concluded from these results that adenine methylation on ODNs and bacterial gDNA may enhance immune activity induced by CpG DNA. The experimental process involved the reaction of N-Methyl-7H-purin-6-amine(cas: 443-72-1).Application In Synthesis of N-Methyl-7H-purin-6-amine
The Article related to mycobacterium cpg dna adenine methylation macrophage, Immunochemistry: Other (Immunity, Immune Suppression, Tolerance, etc.) and other aspects.Application In Synthesis of N-Methyl-7H-purin-6-amine
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem