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