Peptide name : Cliotide T19

Source/Organism : Butterfly pea

Linear/Cyclic : Not found

Chirality : L

Peptide length: 30

C-terminal modification: Not found

N-terminal modification : Free

Non-natural peptide information: None

Assay type : Not specified

Assay time : Not found

Activity : Not found

Cell line : Not found

Cancer type : Not found

Other activity : Not found

Amino acid composition bar chart :

Molecular mass : 3150.7589 Dalton

Aliphatic index : 0.616

Instability index : 46.0767

Hydrophobicity (GRAVY) : -0.04

Isoelectric point : 8.6499

Charge (pH 7) : 2.7028

Aromaticity : 0.033

Molar extinction coefficient (cysteine, cystine): (1490, 1865)

Hydrophobic/hydrophilic ratio : 1.30769230

hydrophobic moment : 0.2112

Missing amino acid : W,H,Q,M,F,N,A

Most occurring amino acid : C

Most occurring amino acid frequency : 6

Least occurring amino acid : V

Least occurring amino acid frequency : 1

Secondary structure fraction (Helix, Turn, Sheet): (0.2, 0.3, 0.2)

SMILES Notation: CC[C@H](C)[C@H](NC(=O)[C@@H](NC(=O)[C@H](CO)NC(=O)CN)C(C)C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CS)C(=O)NCC(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CO)C(=O)N[C@@H](CS)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CS)C(=O)N[C@@H](Cc1ccc(O)cc1)C(=O)N[C@H](C(=O)N1CCC[C@H]1C(=O)NCC(=O)N[C@@H](CS)C(=O)N[C@H](C(=O)N[C@@H](CS)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N1CCC[C@H]1C(=O)N[C@H](C(=O)N[C@@H](CS)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(=O)O)C(=O)O)[C@@H](C)CC)[C@@H](C)O)[C@@H](C)O

1 : Sen Z, et al. Chemosensitizing activities of cyclotides from Clitoria ternatea in paclitaxel-resistant lung cancer cells. Oncol Lett. 2013; 5:641-644. doi: 10.3892/ol.2012.1042

Paper title : Chemosensitizing activities of cyclotides from Clitoria ternatea in paclitaxel-resistant lung cancer cells.

Doi : https://doi.org/10.3892/ol.2012.1042

Abstract : Cyclotides comprise a family of circular mini-peptides that have been isolated from various plants and have a wide range of bioactivities. Previous studies have demonstrated that cyclotides have antitumor effects and cause cell death by membrane permeabilization. The present study aimed to evaluate the cytotoxicity and chemosensitizing activities of cyclotides from Clitoria ternatea in paclitaxel-resistant lung cancer cells. In this study, a total of seven cyclotides were selected for colorimetric cell viability assay (MTT assay) to evaluate their anticancer and chemosensitizing activities in the lung cancer cell line A549 and its sub-line A549/paclitaxel. Results suggested that certain cyclotides had significant anticancer and chemosensitizing abilities; such cyclotides were capable of causing multi-fold decreases in the half maximal inhibitory concentration (IC(50)) value of cliotides in the presence of paclitaxel. More importantly, their bioactivities were found to be correlated with their net charge status. In conclusion, cyclotides from C. ternatea have potential in chemosensitization application.