Английская Википедия:Caldoramide

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Шаблон:Chembox Caldoramide is a pentapeptide[1] isolated from the cyanobacteria Caldora penicillata.[2] It has cytotoxic effects on cancer cells and has been the subject of extensive oncological research.[3] It is structurally analogous to belamide A and dolastatin 15. Its appearance is that of a powdery, white, substance.[3]

Structure

The N-terminus for Caldoramide is N,N-dimethylvaline which is attached to a valine which is attached to an N-Me-valine connected to an N-Me-isoleucine which is attached to the C-terminus. The molecule can also be written as N,N-diMe-Val-Val-N-Me-Val-N-Me-Ile-3-O-Me-4-benzylpyrrolinone.[3]

Extraction

Freeze-dried samples of Caldora penicillata had EtOAcMeOH and H2O−EtOH applied to them in order to extract Caldoramide. The extracts were partitioned with n-BuOH and H2O and then fractions were taken based on solubility in either EtOAc or BuOH. Caldoramide was extracted from the BuOH soluble fraction.[3]

Pharmacological activity

Caldoramide has been found to be cytotoxic against HCT116 colorectal cancer cell lines.[3]

See also

References

Шаблон:Reflist

Шаблон:Cyanotoxins

Шаблон:Biochem-stub