Аминокиселина: Разлика помеѓу преработките

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=== Оптички својства на амино киселините ===
[[Податотека:Beta alanine comparison.png|thumb|250px|rightлево|alt=Comparison of the structures of alanine and beta alanine. In alanine the side chain is a methyl group, in beta alanine the side chain contains a methylene group connected to an amino group and the alpha carbon lacks an amino group. The two amino acids therefore have the same formulae but different structures.| β-аланин и неговиот α-аланин изомер.]]
[[Податотека:Peptidformationball.svg|thumbnail|right|400px|Формирање на пептидна врска|alt=Two amino acids are shown next to each other. One loses a hydrogen and oxygen from its carboxyl group (COOH) and the other loses a hydrogen from its amino group (NH2). This reaction produces a molecule of water (H2O) and two amino acids joined by a peptide bond (-CO-NH-). The two joined amino acids are called a dipeptide.]]