▁in hib its ▁AT : PI ID , ▁leading ▁to ▁ad eny ly lation ▁and ▁subsequent ▁de activ ation ▁of ▁G S . ▁Furthermore , ▁G ln ▁fav ors ▁the ▁conversion ▁of ▁P I ID ▁to ▁P II A . ▁The ▁effects ▁of ▁α - K G ▁on ▁the ▁complex es ▁are ▁opposite . ▁In ▁the ▁majority ▁of ▁gram - negative ▁b acter ia , ▁G S ▁can ▁be ▁modified ▁by ▁ad eny ly lation ▁( some ▁cy an ob acter ia ▁and ▁green ▁alg ae ▁or ▁exceptions ). ▁ ▁In hib ition ▁of ▁G S ▁has ▁largely ▁focused ▁on ▁am ino ▁site ▁lig ands . ▁Other ▁in hib itors ▁are ▁the ▁result ▁of ▁gl ut am ine ▁met abol ism : ▁try pt oph an , ▁hist id ine , ▁car b amo yl ▁ph osph ate , ▁gl uc os am ine - 6 - ph osph ate , ▁c yt id ine ▁tri ph osph ate ▁( CT P ), ▁and ▁ad en os ine ▁mon oph osph ate ▁( AMP ). ▁Other ▁in hib itors / reg ul ators ▁are ▁g ly c ine ▁and ▁al an ine . ▁Alan ine , ▁g ly c ine , ▁and ▁ser ine ▁bind ▁to ▁the ▁gl ut am ate ▁substr ate ▁site . ▁G DP , ▁A MP , ▁AD P ▁bind ▁to ▁the ▁ATP ▁site . ▁L - ser ine , ▁L - al an ine , ▁and ▁g ly c ine ▁bind ▁to ▁the ▁site ▁for ▁L - gl