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Phe-Met-Arg-Phe amide trifluoroacetate Sale

目录号 : GC33680

Phe-Met-Arg-Pheamidetrifluoroacetate是一种神经肽,在肽能神经元中激活K+电流,ED50为23nM,这种作用具有剂量依赖性。

Phe-Met-Arg-Phe amide trifluoroacetate Chemical Structure

Cas No.:159237-99-7

规格 价格 库存 购买数量
5mg
¥848.00
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10mM (in 1mL Water)
¥1,258.00
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25mg
¥2,767.00
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Sample solution is provided at 25 µL, 10mM.

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产品描述

Phe-Met-Arg-Phe amide trifluoroacetate is an activator of K+ current, with ED50 of 23 nM in the peptidergic caudodorsal neurons.

In the molluscan central nervous system, Phe-Met-Arg-Phe amide (FMRFa) acts on K+ channels in sensory, motor-, and neuroendocrine neurones. Phe-Met-Arg-Phe amide activates a novel K+ current that is characterized by a combined voltage- and receptor-dependent gating mechanism, with both factors being necessary for opening of the channels[1]. Phe-Met-Arg-Phe amide (1 μM) significantly inhibits glucose stimulated (300 mg/dL) insulin release (p<0.005) and somatostatin release (p<0.01) from the isolated perfused pancreas. Phe-Met-Arg-Phe amide (FMRF-NH2) (1 and 10 μM) is without effect on glucagon secretion, either in low glucose (50 mg/dL), high glucose (300 mg/dL), or during arginine stimulation (5 mM)[2].

Phe-Met-Arg-Phe amide (FMRFamide) stimulates growth hormone secretion in conscious OVX rats. The presence of Phe-Met-Arg-Phe amide-like immunoreactivity in neuronal elements in the hypothalamus suggested a role for this in the hypothalamic control of the anterior pituitary function. The injection of 200 ng (313.8 picomoles) of FMRFamide (in 2 uL) produces a significantly increased plasma GH 15 min after injection. The GH-increasing effect of 400-800 ng (627-1255 picomoles) of FMRFamide is already developed after 5 min and lasted up to 30 min[3].

[1]. Kits KS, et al. Phe-Met-Arg-Phe-amide activates a novel voltage-dependent K+ current through a lipoxygenasepathway in molluscan neurones. J Gen Physiol. 1997 Nov;110(5):611-28. [2]. Sorenson RL, et al. Phe-met-arg-phe-amide (FMRF-NH2) inhibits insulin and somatostatin secretion and anti-FMRF-NH2 sera detects pancreatic polypeptide cells in the rat islet. Peptides. 1984 Jul-Aug;5(4):777-82. [3]. Ottlecz A, et al. Phe-Met-Arg-Phe-amide (FMRFamide) stimulated growth hormone secretion in conscious OVX rats. Neuropeptides. 1987 Feb-Mar;9(2):161-7.

Chemical Properties

Cas No. 159237-99-7 SDF
Canonical SMILES Phe-Met-Arg-Phe-NH2
分子式 C33H44F6N8O8S 分子量 826.81
溶解度 Water : ≥ 50 mg/mL (60.47 mM) 储存条件 Store at -20°C
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储备液的保存方式和期限:-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
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1 mg 5 mg 10 mg
1 mM 1.2095 mL 6.0473 mL 12.0947 mL
5 mM 0.2419 mL 1.2095 mL 2.4189 mL
10 mM 0.1209 mL 0.6047 mL 1.2095 mL
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