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(Arg)9 peptideCell penetrating inhibitor

(Arg)9 peptide

Catalog No. BCC5336
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Chemical structure

(Arg)9 peptide

Biological Activity of (Arg)9 peptide

Description (Arg)9 peptide is a cell-permeable peptide used for drug delivery.
Targets            
IC50            

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Chemical Properties of (Arg)9 peptide

Cas No. 143413-47-2 SDF Download SDF
Chemical Name (2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoyl]amino]-5-(diaminomethylideneamino)pentanoic acid
SMILES C(CC(C(=O)NC(CCCN=C(N)N)C(=O)NC(CCCN=C(N)N)C(=O)NC(CCCN=C(N)N)C(=O)NC(CCCN=C(N)N)C(=O)NC(CCCN=C(N)N)C(=O)NC(CCCN=C(N)N)C(=O)NC(CCCN=C(N)N)C(=O)NC(CCCN=C(N)N)C(=O)O)N)CN=C(N)N
Standard InChIKey XUNKPNYCNUKOAU-VXJRNSOOSA-N
Standard InChI InChI=1S/C54H110N36O10/c55-28(10-1-19-74-46(56)57)37(91)83-29(11-2-20-75-47(58)59)38(92)84-30(12-3-21-76-48(60)61)39(93)85-31(13-4-22-77-49(62)63)40(94)86-32(14-5-23-78-50(64)65)41(95)87-33(15-6-24-79-51(66)67)42(96)88-34(16-7-25-80-52(68)69)43(97)89-35(17-8-26-81-53(70)71)44(98)90-36(45(99)100)18-9-27-82-54(72)73/h28-36H,1-27,55H2,(H,83,91)(H,84,92)(H,85,93)(H,86,94)(H,87,95)(H,88,96)(H,89,97)(H,90,98)(H,99,100)(H4,56,57,74)(H4,58,59,75)(H4,60,61,76)(H4,62,63,77)(H4,64,65,78)(H4,66,67,79)(H4,68,69,80)(H4,70,71,81)(H4,72,73,82)/t28-,29-,30-,31-,32-,33-,34-,35-,36-/m0/s1
Formula C54H110N36O10 M.Wt 1423.69
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other courier with RT , or blue ice upon request.

References on (Arg)9 peptide

Fluorescence detection of MMP-9. I. MMP-9 selectively cleaves Lys-Gly-Pro-Arg-Ser-Leu-Ser-Gly-Lys peptide.[Pubmed: 21446907]


MMP-9 enzyme recognizes a peptide sequence Lys-Gly-Pro-Arg-Ser-Leu-Ser-Gly-Lys and cleaves the peptide into two parts. We synthesized a dual fluorophore beacon consisting of 5-FAM and Cy5 dyes. The fluorescence emission of the fluorescein moiety is dramatically quenched by Cy5 molecule due to Förster Resonance Energy Transfer (FRET) and the fluorescence of Cy5 is strongly enhanced. Upon addition of MMP-9 enzyme, the fluorescence of 5-FAM intensifies and Cy5 decreases. The control MMP-2 enzyme does not cause any changes in either 5-FAM or Cy5 fluorescence. We believe that our observation will help in early detection of elevated MMP-9 levels under disease conditions.

Purification, structural characterization, and myotropic activity of a peptide related to des-Arg(9)-bradykinin from an elasmobranch fish, the little skate, Leucoraja erinacea.[Pubmed: 18502540]


A bradykinin (BK)-related peptide was isolated from heat-denaturated plasma from an elasmobranch fish, the little skate, Leucoraja erinacea after incubation with porcine pancreatic kallikrein. The primary structure of the peptide (H-Gly-Ile-Thr-Ser-Trp-Leu-Pro-Phe-OH; skate BK) shows limited structural similarity to the mammalian B1 receptor agonist, des-Arg(9)-BK. The myotropic activities of synthetic skate BK, and the analog skate [Arg(9)]BK, were examined in isolated skate vascular and intestinal smooth muscle preparations. Skate BK produced a concentration-dependent constriction of the mesenteric artery (EC(50)=4.37x10(-8)M; maximum response=103.4+/-10.23% of the response to 60mM KCl) but the response to skate [Arg(9)]BK was appreciably weaker (response to 10(-6)M=73.0+/-23.4% of the response to 60mM KCl). Neither the first branchial gill arch nor the ventral aorta responded to either purified peptide. Skate BK also produced a concentration-dependent constriction of intestinal smooth muscle preparations (EC(50)=2.74x10(-7)M; maximum response 31.0+/-12.2% of the response to 10(-5)M acetylcholine). Skate [Arg(9)]BK was without effect on the intestinal preparation. The data provide evidence for the existence of the kallikrein-kinin system in a phylogenetically ancient vertebrate group and the greater potency of skate BK compared with the analog skate [Arg(9)]BK suggests that the receptor mediating vascular responses resembles the mammalian B1 receptor more closely than the B2 receptor.

Design of specific peptide inhibitors for group I phospholipase A2: structure of a complex formed between phospholipase A2 from Naja naja sagittifera (group I) and a designed peptide inhibitor Val-Ala-Phe-Arg-Ser (VAFRS) at 1.9 A resolution reveals unique features.[Pubmed: 14529280]


Phospholipase A(2) (PLA(2)) (E. C. 3.1.1.4) is a common enzyme in the two-way cascade mechanism leading to the production of proinflammatory compounds known as eicosanoids. The binding of phospholipase A(2) to the membrane surface and hydrolysis of phospholipids are thought to involve the formation of a hydrophobic channel into which a single substrate molecule diffuses before its cleavage. To regulate the production of proinflammatory compounds, a specific peptide inhibitor Val-Ala-Phe-Arg-Ser (VAFRS) for the group I PLA(2) enzymes has been designed and synthesized. PLA(2) was isolated from Indian cobra (Naja naja sagittifera) venom and purified to homogeneity. The binding studies indicated the K(i) value of 1.02 +/- 0.10 x 10(-8) M. The purified PLA(2) samples and the designed inhibitor VAFRS were cocrystallized. The crystal structure of the complex was determined and refined to 1.9 A resolution. The peptide binds to PLA(2) at the active site and fills the hydrophobic channel completely. However, its placement with respect to the channel is in the opposite direction as compared to those observed in group II PLA(2)'s. Furthermore, the predominant intermolecular interactions involve strong electrostatic interactions between the side chains of peptide Arg and Asp 49 of PLA(2) together with a number of van der Waals interactions with other residues. A good number of observed interactions between the peptide and the protein indicate the significance of a structure-based drug design approach. The novel factor in the present sequence of the peptide is related to the introduction of a positively charged residue at the C-terminal part of the peptide.

Structure-activity relationship of cyclic peptide penta-c[Asp-His(6)-DPhe(7)-Arg(8)-Trp(9)-Lys]-NH(2) at the human melanocortin-1 and -4 receptors: His(6) substitution.[Pubmed: 12657270]


A series of MT-II related cyclic peptides, based on potent but non-selective hMC4R agonist (Penta-c[Asp-His(6)-DPhe(7)-Arg(8)-Trp(9)-Lys]-NH(2)) was prepared in which His(6) residue was systematically substituted. Two of the most interesting peptides identified in this study are Penta-c[Asp-5-ClAtc-DPhe-Arg-Trp-Lys]-NH(2) and Penta-c[Asp-5-ClAtc-DPhe-Cit-Trp-Lys]-NH(2) which are potent hMC4R agonists and are either inactive or weak partial agonists (not tested for their antagonist activities) in hMC1R, hMC3R and hMC5R agonist assays.

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