High resolution SNFG image
-4)[Ac(1-2)]bDGlcpN(1-4)bXMurp-lactam(1-4)[Ac(1-2)]bDGlcpN(1-4)bXMurp-lactam(1-4)[Ac(1-2)]bDGlcpN(1-4)[xLAla?(2-8),Ac(1-2)]bXMurp(1- // Mur-lactam = muramic acid δ-lactam (one of them reduced)
-4)[Ac(1-2)]bDGlcpN(1-4)bXMurp-lactam(1-4)[Ac(1-2)]bDGlcpN(1-4)bXMurp-lactam(1-4)[Ac(1-2)]bDGlcpN(1-4)[xLAla?(2-8),Ac(1-2)]bXMurp(1- // Mur-lactam = muramic acid δ-lactam (one of them reduced)