Imino acid

... why? despite the fact I read Proline is the only proteinogenic amino acid whose side group cyclizes onto the backbone: it links to the α-amino ... secondary amine at this position. Proline has sometimes been termed an imino acid, but this is not correct by current nomenclature rules. I don't ...

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... that attack specific peptide bonds in each of the seven major amino acid classes -- acidic (Asn, Asp, Gln, Glu), aliphatic (Ala, Gly, Ile, Leu, ... Phe, Trp, Tyr), basic (Arg, His, Lys), hydroxylic (Ser, Thr, Tyr), imino (Pro), and sulfur (Cys, Met). The present design thus includes a requirement ...

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