1. Membrane Transporter/Ion Channel
  2. Potassium Channel
  3. Phe-Met-Arg-Phe amide trifluoroacetate

Phe-Met-Arg-Phe amide trifluoroacetate 

Cat. No.: HY-P0249A Purity: >98.0%
Handling Instructions

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

For research use only. We do not sell to patients.

Custom Peptide Synthesis

Phe-Met-Arg-Phe amide trifluoroacetate Chemical Structure

Phe-Met-Arg-Phe amide trifluoroacetate Chemical Structure

CAS No. : 159237-99-7

Size Price Stock Quantity
10 mM * 1 mL in Water USD 131 In-stock
Estimated Time of Arrival: December 31
5 mg USD 96 In-stock
Estimated Time of Arrival: December 31
10 mg USD 144 In-stock
Estimated Time of Arrival: December 31
25 mg USD 228 In-stock
Estimated Time of Arrival: December 31
50 mg   Get quote  
100 mg   Get quote  

* Please select Quantity before adding items.

Customer Review

Based on 1 publication(s) in Google Scholar

Other Forms of Phe-Met-Arg-Phe amide trifluoroacetate:

Top Publications Citing Use of Products
  • Biological Activity

  • Purity & Documentation

  • References

  • Customer Review

Description

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

IC50 & Target

ED50: 23 nM (K+ current)[1]

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[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].

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[3].

Molecular Weight

826.81

Formula

C₃₃H₄₄F₆N₈O₈S

CAS No.

159237-99-7

Sequence

Phe-Met-Arg-Phe-NH2

Sequence Shortening

FMRF-NH2

Shipping

Room temperature in continental US; may vary elsewhere

Storage
Powder -80°C 2 years
  -20°C 1 year
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

H2O : ≥ 50 mg/mL (60.47 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 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
*Please refer to the solubility information to select the appropriate solvent.
References
  • No file chosen (Maximum size is: 1024 Kb)
  • If you have published this work, please enter the PubMed ID.
  • Your name will appear on the site.
  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

Inquiry Online

Your information is safe with us. * Required Fields.

Product name

 

Salutation

Applicant name *

 

Email address *

Phone number *

 

Organization name *

Country or Region *

 

Requested quantity *

Remarks

Bulk Inquiry

Inquiry Information

Product Name:
Phe-Met-Arg-Phe amide trifluoroacetate
Cat. No.:
HY-P0249A
Quantity: