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Penicillin and cephalosporin: block peptidases that cross-link glycan molecules.
Penicillin is the first discovered antibiotic molecule. It works to kill or prevent the growth of bacteria in a living body. Penicillin belongs to the group of β-lactams. The examples of various penicillin are: penicillin G, amoxicillin, nafcillin, oxacillin, dicloxacillin, etc.
Glycan is a carbohydrate that belongs to the polysaccharide category. The glycans can be found in the living body attached to lipids and proteins. There functions can be varying like structural, energy constituent, etc. The example of glycans are cellulose, chitin, etc. Glycans are divided into two classes: N-linked and O-linked.
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