摘要
<正>“Life requires more than nucleic acids and proteins; sweet sugar molecules could be another life code beyond the central dogma of molecular biology.”Among the four equally important major building blocks of life——that is, nucleic acids(DNA and RNA), proteins, lipids, and carbohydrates(glycans)——the first two, DNA and RNA, follow the wellestablished principle of the “central dogma” of transcription(DNA to RNA) and translation(RNA to protein).
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