Bacteria have gain resistance to vancomycin, e$.$g$.$ vancomycin resistant enteroccoci $($VRE$),$ by changing D$-$Ala$-$D$-$Ala to D$-$Ala$-$D$-$Lac where D$-$lac is D$-$lactate. Please indicate all possible hydrogen bond acceptor and donor sites on D$-$Ala$-$D$-$Lac below excluding the terminal amine and terminal carboxylic acid

Please indicate how water might hydrogen bond with D$-$Ala$-$D$-$Ala excluding the terminal amine and terminal carboxylic acid.