(under subclass 300) Peptides containing at least half the amino residues in sequence of the polypeptide with the structure: [figure]
(1) Note. Synonyms. Gramodern, Pyrrolo (1, 2A) (1, 4, 7, 10, 13, 16, 19, 22, 25, 28) decaazacyclotriacontine. D is a complex of four components A, B, C, and D. A second series (the isoleucine Gramacidins) has an isoleucine instead of valine in position 1. Gramicidin B has a Phe in position II, while Gramacidin has tyrosine at this position.
(2) Note. CA Registry Numbers of Unmodified form: [figure]
