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|Section2= |Section3= }} 2,6-Diaminopurine is a compound used to treat leukemia. In August 2011, a report, based on NASA studies with meteorites found on Earth, was published suggesting 2,6-diaminopurine and related organic molecules, including the DNA and RNA components adenine and guanine, may have been formed extraterrestrially in outer space. ==Cyanophage S-2L== (詳細はCyanophage S-2L, diaminopurine (DAP) is used instead of adenine (host evasion).〔Kirnos MD, Khudyakov IY, Alexandrushkina NI, Vanyushin BF. 2-aminoadenine is an adenine substituting for a base in S-2L cyanophage DNA. Nature. 1977 Nov 24;270(5635):369–70.〕 Diaminopurine basepairs perfectly with thymine as it is identical to adenine but has an amine group at position 2 forming 3 intramolecular hydrogen bonds, eliminating the major difference between the two types of basepairs (Weak:A-T and Strong:C-G). This improved stability affects protein-binding interactions that rely on those differences. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「2,6-Diaminopurine」の詳細全文を読む スポンサード リンク
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