The problem with pyrimidines.
Pearl
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Savva
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D000586:Amination; D017103:Bacillus Phages / Q000235:genetics; D001412:Bacillus subtilis / Q000235:genetics; D001482:Base Composition; D003596:Cytosine / Q000737:chemistry / Q000378:metabolism*; D004247:DNA / Q000737:chemistry* / Q000378:metabolism; D045647:DNA Glycosylases; D008954:Models, Biological; D008958:Models, Molecular; D009699:N-Glycosyl Hydrolases / Q000378:metabolism; D011755:Pyrophosphatases / Q000378:metabolism; D013941:Thymine; D014498:Uracil / Q000737:chemistry / Q000378:metabolism*; D051981:Uracil-DNA Glycosidase
D014498:Uracil; D003596:Cytosine; D004247:DNA; D045647:DNA Glycosylases; D009699:N-Glycosyl Hydrolases; D051981:Uracil-DNA Glycosidase; D011755:Pyrophosphatases; C023278:uridine triphosphatase; D013941:Thymine