Cyclamides are a class of

oligopeptide An oligopeptide ('' oligo-'', "a few"), is a peptide consisting of two to twenty amino acids, including dipeptides, tripeptides, tetrapeptides, and other polypeptides. Some of the major classes of naturally occurring oligopeptides include aerugi ...

s produced by

cyanobacteria Cyanobacteria ( ) are a group of autotrophic gram-negative bacteria that can obtain biological energy via oxygenic photosynthesis. The name "cyanobacteria" () refers to their bluish green (cyan) color, which forms the basis of cyanobacteri ...

algae strains such as '' Microcystis aeruginosa''. Some of them can be toxic. Cyclamides are cyclopeptides with either six or eight amino acids, some of which are modified from their natural proteinogenic form. They are typically characterized by thiazole and oxazole rings which are thought to be

cysteine Cysteine (; symbol Cys or C) is a semiessential proteinogenic amino acid with the chemical formula, formula . The thiol side chain in cysteine enables the formation of Disulfide, disulfide bonds, and often participates in enzymatic reactions as ...

and

threonine Threonine (symbol Thr or T) is an amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated −NH form when dissolved in water), a carboxyl group (which is in the deprotonated −COO− ...

derivatives, respectively. Cyclamides are biosynthesized through ribosomic pathways.

References

External links

* {{Cyanotoxins Peptides Cyanotoxins

See also

References

External links