Phe-Met-Arg-Phe, amide

Phe-Met-Arg-Phe, amide dose dependently (ED50=23 nM) activates a K+ current in the peptidergic caudodorsal neurons.

Product information

CAS Number: 64190-70-1

Molecular Weight: 598.76

Formula: C29H42N8O4S

Chemical Name: (2S)-2-[(2S)-2-[(2S)-2-amino-3-phenylpropanamido]-4-(methylsulfanyl)butanamido]-N-[(1S)-1-carbamoyl-2-phenylethyl]-5-[(diaminomethylidene)amino]pentanamide

Smiles: CSCC[C@H](NC(=O)[C@@H](N)CC1C=CC=CC=1)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CC1C=CC=CC=1)C(N)=O

InChiKey: WCSPDMCSKYUFBX-ZJZGAYNASA-N

InChi: InChI=1S/C29H42N8O4S/c1-42-16-14-23(35-26(39)21(30)17-19-9-4-2-5-10-19)28(41)36-22(13-8-15-34-29(32)33)27(40)37-24(25(31)38)18-20-11-6-3-7-12-20/h2-7,9-12,21-24H,8,13-18,30H2,1H3,(H2,31,38)(H,35,39)(H,36,41)(H,37,40)(H4,32,33,34)/t21-,22-,23-,24-/m0/s1

Technical Data

Appearance: Solid Power

Purity: ≥98% (or refer to the Certificate of Analysis)

Shipping Condition: Shipped under ambient temperature as non-hazardous chemical or refer to Certificate of Analysis

Storage Condition: Dry, dark and -20 ^oC for 1 year or refer to the Certificate of Analysis.

Shelf Life: ≥12 months if stored properly.

Stock Solution Storage: 0 - 4 ^oC for 1 month or refer to the Certificate of Analysis.

Drug Formulation: To be determined

HS Tariff Code: 382200

How to use

In Vitro:

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. 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).

In Vivo:

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.

Products are for research use only. Not for human use.