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8-Bromo-cGMP, sodium salt

cGMP analog; activates PKG CAS# 51116-01-9

8-Bromo-cGMP, sodium salt

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Chemical structure

8-Bromo-cGMP, sodium salt

3D structure

Chemical Properties of 8-Bromo-cGMP, sodium salt

Cas No. 51116-01-9 SDF Download SDF
PubChem ID 104767 Appearance Powder
Formula C10H10BrN5NaO7P M.Wt 446.09
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 100 mM in water
Chemical Name 9-[(4aR,6R,7R,7aS)-2,7-dihydroxy-2-oxo-4a,6,7,7a-tetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-6-yl]-2-amino-8-bromo-3H-purin-6-one
SMILES C1C2C(C(C(O2)N3C4=C(C(=O)N=C(N4)N)N=C3Br)O)OP(=O)(O1)O
Standard InChIKey YUFCOOWNNHGGOD-UMMCILCDSA-N
Standard InChI InChI=1S/C10H11BrN5O7P/c11-9-13-3-6(14-10(12)15-7(3)18)16(9)8-4(17)5-2(22-8)1-21-24(19,20)23-5/h2,4-5,8,17H,1H2,(H,19,20)(H3,12,14,15,18)/t2-,4-,5-,8-/m1/s1
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.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of 8-Bromo-cGMP, sodium salt

DescriptionMembrane permeable cGMP analog that activates protein kinase G (PKG). 4.3-fold more potent than cGMP in activating PKG1α and promotes relaxation of tracheal and vascular smooth muscle tissue in vitro.

8-Bromo-cGMP, sodium salt Dilution Calculator

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8-Bromo-cGMP, sodium salt Molarity Calculator

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Preparing Stock Solutions of 8-Bromo-cGMP, sodium salt

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 2.2417 mL 11.2085 mL 22.417 mL 44.834 mL 56.0425 mL
5 mM 0.4483 mL 2.2417 mL 4.4834 mL 8.9668 mL 11.2085 mL
10 mM 0.2242 mL 1.1209 mL 2.2417 mL 4.4834 mL 5.6043 mL
50 mM 0.0448 mL 0.2242 mL 0.4483 mL 0.8967 mL 1.1209 mL
100 mM 0.0224 mL 0.1121 mL 0.2242 mL 0.4483 mL 0.5604 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on 8-Bromo-cGMP, sodium salt

Relaxation of pig coronary arteries by new and potent cGMP analogs that selectively activate type I alpha, compared with type I beta, cGMP-dependent protein kinase.[Pubmed:1321950]

Mol Pharmacol. 1992 Jul;42(1):103-8.

Smooth muscle preparations of human aorta or pig coronary arteries contain nearly equal amounts of cGMP-dependent protein kinase isozymes (cGMP kinase I alpha and I beta). In order to understand the roles of these isozymes in relaxing vascular smooth muscle, several new cGMP analogs were synthesized and tested for potencies in activating each enzyme and in relaxing pig coronary arteries. Analogs modified with a derivatized phenylthio group at the 8-position were as much as 72-fold more potent in activating purified cGMP kinase I alpha than cGMP kinase I beta. Electron-donating substituents, such as hydroxy, amino, and methoxy, on the phenyl ring enhanced the potencies of these analogs in activating cGMP kinase I alpha. The most potent of these cGMP analogs [8-(4-hydroxyphenylthio)-cGMP] was 17 times more potent (EC50 = 1.1 microM) as a muscle relaxant than the most efficacious analog tested previously. Among derivatives with an 8-halo group, 8-iodo-cGMP was the most potent compound (Ka = 9 nM for I alpha and 122 nM for I beta) for both I alpha and I beta. Analogs modified at the 1,N2-position or at both the 1,N2-and 8-positions of cGMP were highly potent for activating both isozymes. Within this group, 8-I-beta-phenyl-1,N2-etheno-cGMP had Ka values of 22 nM and 17 nM for cGMP kinase I alpha and I beta, respectively, whereas the Ka values of cGMP were 110 nM and 250 nM for the two isozymes. 8-I-beta-phenyl-1,N2-etheno-cGMP was the most potent muscle relaxant tested, with EC50 of 0.4 microM. For all cGMP analogs tested, there was a positive correlation between potency for activation of cGMP kinase I alpha and that for relaxation of pig coronary arteries. Assuming that the kinase assay conditions yielded a cyclic nucleotide specificity similar to that which would exist in intact cells, it was concluded that the cGMP kinase I alpha isozyme mediates the relaxation of pig coronary artery smooth muscle caused by cGMP elevation. However, an additional role for cGMP kinase I beta in the relaxation process could not be ruled out.

Modulation of agonist-induced calcium mobilisation in bovine aortic endothelial cells by phorbol myristate acetate and cyclic AMP but not cyclic GMP.[Pubmed:1665733]

Br J Pharmacol. 1991 Oct;104(2):361-6.

1. In bovine aortic endothelial cells (BAEC), thrombin (1 mu ml-1), bradykinin (1-10 nM) and adenosine triphosphate (ATP) (0.3 microM-100 microM) each induced a biphasic elevation of cytosolic calcium ([Ca2+]i), consisting of an initial transient followed by a sustained plateau phase. 2. Pretreatment of BAEC with 4 beta-phorbol 12-myristate 13-acetate (PMA; 100 nM) reduced the magnitude of the initial transient elevation of [Ca2+]i, induced by thrombin (1 mu ml-1), low concentrations of bradykinin (1 nM) or ATP (0.3 microM, 3 microM), but not by higher concentrations of the latter two agonists. Addition of PMA (100 nM) during the plateau phase of the increase in [Ca2+]i induced by thrombin (1 mu ml-1), bradykinin (10 nM) or ATP (30 microM) resulted in a fall in [Ca2+]i. 3. The inhibitory effects of PMA (100 nM) were inhibited by staurosporine (100 nM) but not mimicked by the inactive phorbol ester, 4 alpha-phorbol 12,13-didecanoate (4 alpha-PDD; 100 nM). Furthermore, staurosporine (100 nM) increased [Ca2+]i when added during the plateau phase of the increase in [Ca2+]i induced by thrombin or bradykinin. In contrast, staurosporine (100 nM) reduced [Ca2+]i when added during the plateau phase of the increase in [Ca2+]i induced by ATP (30 microM). 4. Pretreatment with forskolin (10 microM) had no effect on the magnitude of the initial transient elevation of [Ca2+]i induced by thrombin (1 mu ml-1), bradykinin (1 nM and 10 nM) or ATP (30 microM). In contrast, forskolin (10 microM) and isoprenaline (10 microM) each induced biphasic elevations of [Ca21]i when added during the plateau phase of the increase in [Ca2+]i induced by the three agonists. Furthermore, in the presence of the inhibitor of calcium influx, nickel chloride (4mM), these biphasic elevations were reduced to monophasic transient elevations. 5. 8 Bromo cyclic GMP (30 microM), a membrane-permeant analogue of guanosine 3': 5'-cyclic monophosphate (cyclic GMP), had no effect on the magnitude of the initial transient elevation of [Ca21]i induced by thrombin (1 u ml 1), bradykinin (10 nM) or ATP (3 microM). Furthermore, 8 bromo cyclic GMP (30 microM) and sodium nitroprusside (1 microM), had no effect when added during the plateau phase of the increase in [Ca2+]i induced by the three agonists. 6. NG nitro-L-arginine (50,microM), an inhibitor of nitric oxide synthase, had no effect on the magnitude of the initial transient elevation of [Ca21]i induced by thrombin (1 uml- ), bradykinin (1 nM) or ATP (3,microM), and had no effect on the plateau phase of the increase in [Ca2+]i induced by these agents. 7. These findings suggest that while activation of protein kinase C inhibits and elevation of adenosine 3': 5'-cyclic monophosphate (cyclic AMP) augments calcium mobilisation in bovine aortic endothelial cells, elevation of cyclic GMP appears to have no effect.

Description

8-Bromo-cGMP sodium, a membrane-permeable analogue of cGMP, is a PKG (protein kinase G) activator and significantly inhibits Ca2+ macroscopic currents and impairs insulin release stimulated with high K+. 8-Bromo-cGMP sodium has antinociceptive effects.

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