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??????????,??????????????????????,?“??????????????????”????????????????1950??????(???????cAMP?cGMP)??????????,???????????????????????????????,??????????????????,?????????,???,?????????????KomA(????A)?KomB(?????????B)?KomC(???????????????????????C)????????????????,??(DNK)??????“??”:KomA????????????????????DNK???????????,?(dAMP)?dITP??KomC?????????????????NAD⁺,??“?????”??????,??????,??“????”??,??????“???”?????????????????????????????,????????
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