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^Hx V

N-C-C

H

/

N

H

OH H

^H\ V

N-C-C

/ I \

H

OH

u H O H H .

\ I II I I

N-C-C-N-C-C

H

/

\

H

H

OH

Peptide Bond

A molecule of water is removed from two glycine amino acids to form a peptide bond.