Name	Genotype
pTrcA*	Ptrc-metAfbr (A881G)
pTrcA*H	Ptrc-metAfbr(A881G)-yjeH
pTrcA*HpTrcthrA*	Ptrc-metAfbr(A881G)-yjeH, Ptrc-thrAfbr
pTrcA*HpTrcnadk	Ptrc-metAfbr(A881G)-yjeH, Ptrc-nadK