Compstatin TFA |
| カタログ番号GC61469 |
13 残基の環状ペプチドであるコンプスタチン TFA は、種特異性を持つ補体系 C3 の強力な阻害剤です。
Products are for research use only. Not for human use. We do not sell to patients.
Sample solution is provided at 25 µL, 10mM.
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Compstatin TFA, a 13-residue cyclic peptide, is a potent inhibitor of the complement system C3 with species specificity. Compstatin TFA binds to baboon C3 and is resistant to proteolytic cleavage in baboon blood (similar to humans). Compstatin TFA inhibits only the activation of primates' complement system. Compstatin TFA exhibits IC50 values of 63 μM and 12 μM for classical and alterative complement pathway, respectively[1][2][3].
Compstatin exhibits an in vitro half-life in human blood of about 2 hr[2].In solution, compstatin forms a β-turn at residues Gln-5-Gly-8 with the disulfide bridge Cys-2-Cys12, residues Ile-1-Val-4, and Thr-13, forming a hydrophobic cluster[3].
Compstatin (21 mg/kg) produces complete inhibition when given as a combination of bolus injection and infusion. Compstatin completely inhibits in vivo heparin/protamine-induced complement activation without adverse effects on heart rate or systemic arterial, central venous, and pulmonary arterial pressures[1].Compstatin is stable in baboon plasma for more than 24 h[1].Pig xenografts survival is significantly longer in the Compstatin perfused group than in the control group[2]. Animal Model: Juvenile baboons (P. Anubis) weighing 10.5-28.8 kg[1].
[1]. Soulika AM, et al. Inhibition of heparin/protamine complex-induced complement activation by Compstatin in baboons. Clin Immunol. 2000 Sep;96(3):212-21. [2]. Fiane AE, et al. Compstatin, a peptide inhibitor of C3, prolongs survival of ex vivo perfused pig xenografts. Xenotransplantation. 1999 Feb;6(1):52-65. [3]. Bert J C Janssen, et al. Structure of compstatin in complex with complement component C3c reveals a new mechanism of complement inhibition. J Biol Chem. 2007 Oct 5;282(40):29241-7. [4]. A Sahu, et al. Inhibition of human complement by a C3-binding peptide isolated from a phage-displayed random peptide library. J Immunol. 1996 Jul 15;157(2):884-91.
| Cas No. | SDF | ||
| Formula | C68H100F3N23O19S2 | M.Wt | 1664.79 |
| 溶解度 | DMSO: 110 mg/mL (66.07 mM); Water: 5.22 mg/mL (3.14 mM) | Storage | -20°C, protect from light, stored under nitrogen |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
||
| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 0.6007 mL | 3.0034 mL | 6.0068 mL |
| 5 mM | 0.1201 mL | 0.6007 mL | 1.2014 mL |
| 10 mM | 0.0601 mL | 0.3003 mL | 0.6007 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
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Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
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- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 32 reference(s) in Google Scholar.)
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