cyclopeptide

cy·clo·pep·tide

(sī'klō-pep'tīd),
One of a group of cyclic peptides that inhibit RNA polymerase and thus block protein synthesis. Used as topical antimicrobials, but toxic if ingested. Constituent in mushrooms that causes toxicity (amatoxin).
See also: polymyxin, amatoxin.

cy·clo·pep·tide

(sī'klō-pep'tīd)
A polypeptide lacking terminal -NH2 and -COOH groupsby virtue of their combination to form another peptide link, forming a ring.
References in periodicals archive ?
Antiplasmodial and antimycobacterial cyclopeptide alkaloids have been reported from roots of the plant [24].
Ziziphine N, 0, P and Q, new antiplasmodial cyclopeptide alkaloids from Ziziphus oenoplia var.
Genetic localization of a bruchid resistance gene and its relationship to insecticidal cyclopeptide alkaloids, the vignatic acids, in mungbean (Vigna radiata L.
5 Cyclopeptide Derived Synthetic Receptors (Stefan Kubik).
The present study reports on the antioxidant potential of five cyclopeptide alkaloids isolated from Zizyphus oxyphylla including Oxyphylline-D 1, Nummularin-C 2, Nummularin-R 3, Oxyphylline-B 4, Oxyphylline C 5 using DPPH free radical assay, nitric oxide radical assay and reducing power assay.
RonaCare[R] Cyclopeptide - 5 is a peptide that helps to make skin appear younger and fresher
Include a wide variety of technologies such as Class Flakes, Silica Flakes, Alumina Flakes, Mica and Synthetic Mica, Bismuth Oxychloride, Eusolex UV Pearls, RonaCare[R] Cyclopeptide -5 and many other unique products
Cyclopeptide alkaloid fraction from Zizyphi Spinosi Semen enhances pentobarbital-induced sleeping behaviors.
Arch Personal Care Products; "A New Lipoaminoacid Able to Restore Aging-Induced Modifications in Biomechanical Properties of Human Dermal Fibroblasts and in Functional Properties of Preadipocytes," Carla Perez, Seppic; "Skincare Application for a Novel Cyclopeptide," Howard Epstein, Ph.
Some of the species are reported to have bioactive constituents of different classes, such as lignans [5, 6], cyclopeptides [7, 8], flavonoids [9], flavone glycosides, and phenyl propanoid glycosides [10].