cyclo(pro-leu)

Cyclo(Pro-Leu) (Cyclo-L-prolyl-L-leucine) is a marine-derived natural product with brine shrimp lethality.

Cyclo(L-Leu-L-Pro) is a compound from Pseudomonas sesquiterpenes BC42 that exhibits antifungal activity, inhibits fungal pathogens, and inhibits the proliferation of Aspergillus flavus.Cyclo(L-Leu-L-Pro) inhibits conidial germination and conidial formation, and can be used for agricultural biocontrol.

Cyclo(his-pro) is an endogenous cyclic dipeptide that exerts oxidative damage protection by selectively activating the transcription factor Nrf2 signalling pathway.

Z-Gly-Pro-Phe-Leu-CHO (Z-GPFL-CHO) is a tetrapeptide aldehyde serving as a selective and potent proteasome inhibitor, demonstrating inhibition constants (Ki) of 1.5 µM, 2.3 µM, and 40.5 µM for branched-chain amino acid-preferred, small neutral amino acid-preferred, and chymotrypsin-like activities, respectively, and an inhibitory concentration (IC50) of 3.1 µM for peptidyl-glutamyl peptide hydrolyzing activity [1].

Ser-parafluoroPhe-Aad-Leu-Arg-Asn-Pro-NH2 is a biologically active peptide. Structure-activity studies of the thrombin receptor-tethered ligand SFLLRNP underscored the pivotal role of the Phe-2-phenyl group in receptor recognition, while substitution with para-fluorophenylalanine [(p-F)Phe] augmented its activity.

Cyclo(Phe-Pro) acetate(14705-60-3 free base), known as a secondary metabolite of some bacteria and fungi, is also produced by Vibrio vulnificus.

Cyclo(Gly-Arg-Gly-Asp-Ser-Pro) (c(GRGDSP)) is an RGD-containing inhibitory peptide and a synthetic α5β1 integrin ligand. It competitively inhibits the binding of invasin (Inv) to α5β1 integrin on Caco-2 cells [1].

Maculosin is a secondary metabolite of fungi and bacteria.

H-Pro-Thr-Glu-Phe-p-nitro-Phe-Arg-Leu-OH is a water-soluble polypeptide capable of acting as a substrate for enzymes cathepsin D, pepsin, and pepsinogen, holding potential applications in biochemical analysis [1] [2].

Mca-Pro-Leu-NH2 is a peptide compound and a substrate for matrix protease assays.

Cyclo(Pro-Val) (Cyclo(prolylvalyl)) is obtained from the marine fungus and shows moderate antifungal and weak antitumor activities. Cyclo(Pro-Val) inhibits the growth of Bacillus subtilis with MIC of 0.8 g/L.

Suc-Ala-Leu-Pro-Phe-pNA (Suc-ALPF-pNA), a substrate for FK-506 binding protein (FKBP) [1], showcases the intricate interactions necessary for specific biochemical assays.

Cyclo(Phe-Pro) (A-64863) known as a secondary metabolite of some bacteria and fungi, is also produced by Vibrio vulnificus.

Cyclo(L-Pro-L-Val), a 2,5-diketopiperazine extracted from the fruits of Mycobacterium chiliolyticum AZ2 and Mycobacterium leprae, possesses anti-inflammatory activity and virulence activity against phytopathogenic microorganisms (e.g., R. fascians LMG 3605) and inhibits Gram-positive plant pathogens.Cyclo(L-Pro-L-Val) significantly inhibited IKKα phosphorylation and IκBα and NF-κB activation as well as iNOS and COX-2 activation in a concentration Cyclo(L-Pro-L-Val) significantly inhibited the phosphorylation of IKKα, IKKβ, IκBα, and NF-κB, as well as the activation of iNOS and COX-2 in a concentration-dependent manner, and is a potential therapeutic agent for the treatment of inflammation-related diseases.