Angiotensin (1-7) (Synonyms: Asp-Arg-Val-Tyr-Ile-His-Pro ) |
| Katalog-Nr.GP10077 |
Ang-(1-7) (H - Asp - Arg - Val - Tyr - Ile - His - Pro - OH) ist ein endogenes Peptidfragment, das aus Ang I oder Ang II durch Endo- oder Carboxy-Peptidasen produziert werden kann[1].
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 51833-78-4
Sample solution is provided at 25 µL, 10mM.
Ang-(1-7) (H - Asp - Arg - Val - Tyr - Ile - His - Pro - OH) is an endogenous peptide fragment that can be produced from Ang I or Ang II via endo- or carboxy-peptidases respectively[1].
As described for Ang II, Ang-(1-7) also has a broad range of effects in different organs and tissues and goes beyond its initially described cardiovascular and renal actions. Those effects are mediated by Mas and can counter-regulate most of the deleterious effects of Ang II. The interaction Ang-(1-7)/Mas regulates different signaling pathways, such as PI3K (phosphoinositide 3-kinase)/AKT and ERK (extracellular signal-regulated kinase) pathways and involves downstream effectors such as NO, FOXO1 (forkhead box O1) and COX-2 (cyclo-oxygenase-2). Through these mechanisms, Ang-(1-7) is able to improve pathological conditions including fibrosis and inflammation in organs such as lungs, liver and kidney. [2]
In addition, this heptapeptide has positive effects on metabolism, increasing the glucose uptake and lipolysis while decreasing insulin resistance and dyslipidemia. Ang-(1-7) is also able to improve cerebroprotection against ischemic stroke, besides its effects on learning and memory. The reproductive system can also be affected by Ang-(1-7) treatment, with enhanced ovulation, spermatogenesis and sexual steroids synthesis. Finally, Ang-(1-7) is considered a potential anti-cancer treatment since it is able to inhibit cell proliferation and angiogenesis.[2]
References:
1. Santos et al (2000) Angiotensin-(1-7): an update. Regul.Pept. 91 45.
2. Danielle G. P., Thiago V., Robson A. S. Angiotensin-(1-7): beyond the cardio-renal actions. Clinical Science (2013) 124, (443–456)
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Kinase experiment: |
Competition assays using purified canine ACE are determined using a fixed concentration of the substrate Hip-His-Leu (1 mM) and varying the concentrations of the competing agents [Lisinopril (0.1 to 100 nM), Angiotensin (1-7) (10 nM to 10 μM), or Sar1, Thr8-Ang II (10 nM to 10 μM)]. Inhibitory constants (IC50) are determined from the respective competition curves. To study the effect of Angiotensin (1-7) on BK metabolism in intact coronary rings, 125I-[Tyr0]-BK (final concentration of 1 nM) is added to the tubes containing three rings preincubated with 1 mL Krebs' buffer and aerated with 95% O2 and 5% CO2 at 37°C. Lisinopril (2 μM), Angiotensin (1-7) (2 μM), or Krebs' buffer as control are added to the rings 10 minutes before addition of the radiolabeled BK. Aliquots of the incubation medium are removed at 5, 10, and 20 minutes and diluted with 1% HFBA to inhibit peptidase activity[1]. |
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Cell experiment: |
500 μM Methylglyoxal is incubated with 100 μM BSA dissolved in phosphate buffered saline (PBS) for 24 hours, then washed on 10 kDa filters to remove excess methyl glyoxal, reconstituted with DMEM/F12 serum free media and passed through a 0.2 μmicron filter. TGF-β (5 ng/mL) is prepared to treat cells in a subset of experiments. Cells are co-treated with one or combinations of the following: Angiotensin (1-7) (100 nM), D-Ala7-Ang-(1-7) (10 μM), ERK1/2 kinase inhibitor, PD 98059 (1 μM), TGF-β receptor kinase inhibitor; SB525334 (1 μM), the AT1 receptor antagonist Losartan (1 μM), the renin inhibitor Aliskerin (1 μM) and the ACE inhibitor Lisinopril (1 μM)[2]. |
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Animal experiment: |
Mice[3] Male and female BALB/c mice (1:1 ratio, 6-10 weeks old, mean weight 20 g.) are used. Angiotensin fragment 1-7 acetate salt hydrate (Ang 1-7) is dissolved in 0.9% saline (vehicle) at 1 mg/mL and stored at -80°C. Various doses (0.01, 0.06, 0.1, 0.3 and 1 mg/kg) are freshly prepared from the stock each day of the experiment, and administered to mice by daily intra-peritoneal (i.p) injections in a volume of 500 μL per injection, either before (prophylactic approach) or after (treatment approach) DSS treatment. A779 (MAS-1 R antagonist) is similarly dissolved in distilled water at 1 mg/mL and stored at -80°C. A freshly prepared dose of 1 mg/kg is administered to a second group of mice by daily i.p injections in a volume of 500 μL daily (for 4 days) along with colitis induction (prophylactic approach). A third group of mice receive DSS containing water and daily i.p injections of 0.9% saline (vehicle). The fourth group receive DSS containing water along with daily i.p injections with Dexamethasone (DEX) at doses of 0.01-1.0 mg/kg or its vehicle (0.9% saline) (prophylactic approach). Rats[4] Twenty six ovariectomized female Wistar rats weighing 200±20 g are used. Angiotensin (1-7) is administered intravenously by a microsyringe pump at two different continuous doses of 100 and 300 ng/kg/min after antagonist/saline infusion. Each dose is infused for 15 min; and MAP, RPP, and RBF are recorded during Angiotensin (1-7) infusion and the last 3-5 min of each dose measured as “response to Angiotensin (1-7) infusion”. During Angiotensin (1-7) infusion, RPP is sustained at pre-Ang1-7 infusion levels via an adjustable aortic clamp. At the end of the experiment, the rats are humanely killed by anesthetic overdose, and the left kidneys are removed and weighed immediately. |
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References: [1]. Vaz-Silva J, et al. The vasoactive peptide angiotensin-(1-7), its receptor Mas and the angiotensin-converting enzyme type 2 are expressed in the human endometrium. Reprod Sci. 2009 Mar;16(3):247-56. |
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| Cas No. | 51833-78-4 | SDF | |
| Überlieferungen | Asp-Arg-Val-Tyr-Ile-His-Pro | ||
| Chemical Name | Angiotensin (1-7) | ||
| Canonical SMILES | CCC(C)C(C(=O)NC(CC1=CN=CN1)C(=O)N2CCCC2C(=O)O)NC(=O)C(CC3=CC=C(C=C3)O)NC(=O)C(C(C)C)NC(=O)C(CCCN=C(N)N)NC(=O)C(CC(=O)O)N | ||
| Formula | C41H62N12O11 | M.Wt | 899 |
| Löslichkeit | ≥89.9mg/mL in DMSO | Storage | Desiccate at -20°C |
| 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. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.1123 mL | 5.5617 mL | 11.1235 mL |
| 5 mM | 0.2225 mL | 1.1123 mL | 2.2247 mL |
| 10 mM | 0.1112 mL | 0.5562 mL | 1.1123 mL |
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Quality Control & SDS
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- Purity: >98.00%
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Average Rating: 5 (Based on Reviews and 30 reference(s) in Google Scholar.)
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