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Catalog No. BCC5963
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1mg $175.00 Ship Within 7 Days
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Quality Control of [Nle4,D-Phe7]-α-MSH

Chemical structure


Biological Activity of [Nle4,D-Phe7]-α-MSH

Synthetic analog of α-MSH that is an agonist at melanocortin receptors (Ki values are 0.085, 0.4, 3.8 and 5.1 nM for MC1, MC3, MC4 and MC5 receptors respectively).

[Nle4,D-Phe7]-α-MSH Dilution Calculator

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[Nle4,D-Phe7]-α-MSH Molarity Calculator



Chemical Properties of [Nle4,D-Phe7]-α-MSH

Cas No. 75921-69-6 SDF Download SDF
Synonyms Melanotan I, MT-I, NDP-α-MSH

(Modifications: Ser-1 = N-terminal Ac, X = Nle, Phe-7 = D-Phe, Val-13 = C-terminal amide)

SMILES CCCC[C@H](NC(=O)[C@H](CO)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CO)NC(C)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](Cc2c[nH]cn2)C(=O)N[C@H](Cc3ccccc3)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](Cc4c[nH]c5ccccc45)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N6CCC[C@H]6C(=O)N[C@@H](C(C)C)C(N)=O CCCC[C@H](NC(=O)[C@H](CO)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CO)NC(C)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](Cc2[nH]cnc2)C(=O)N[C@H](Cc3ccccc3)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](Cc4c[nH]c5ccccc45)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N6CCC[C@H]6C(=O)N[C@@H](C(C)C)C(N)=O CCCC[C@H](NC(=O)[C@H](CO)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CO)NC(C)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](Cc2c[nH]cn2)C(=O)N[C@H](Cc3ccccc3)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](Cc4c[nH]c5ccccc45)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N6CCC[C@H]6C(=O)N[C@@H](C(C)C)C(N)=O
Standard InChI InChI=1S/C78H111N21O19/c1-5-6-19-52(91-75(116)61(41-101)97-72(113)57(34-46-24-26-49(103)27-25-46)94-74(115)60(40-100)88-44(4)102)68(109)92-54(28-29-64(105)106)70(111)96-59(36-48-38-83-42-87-48)73(114)93-56(33-45-16-8-7-9-17-45)71(112)90-53(22-14-31-84-78(81)82)69(110)95-58(35-47-37-85-51-20-11-10-18-50(47)51)67(108)86-39-63(104)89-55(21-12-13-30-79)77(118)99-32-15-23-62(99)76(117)98-65(43(2)3)66(80)107/h7-11,16-18,20,24-27,37-38,42-43,52-62,65,85,100-101,103H,5-6,12-15,19,21-23,28-36,39-41,79H2,1-4H3,(H2,80,107)(H,83,87)(H,86,108)(H,88,102)(H,89,104)(H,90,112)(H,91,116)(H,92,109)(H,93,114)(H,94,115)(H,95,110)(H,96,111)(H,97,113)(H,98,117)(H,105,106)(H4,81,82,84)/t52-,53-,54-,55-,56+,57-,58-,59-,60-,61-,62-,65-/m0/s1
Formula C78H111N21O19 M.Wt 1646.86
Solubility Soluble to 0.60 mg/ml in water
Storage Desiccate at -20°C
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.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other courier with RT , or blue ice upon request.

Preparing Stock Solutions of [Nle4,D-Phe7]-α-MSH

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 0.6072 mL 3.0361 mL 6.0722 mL 12.1443 mL 15.1804 mL
5 mM 0.1214 mL 0.6072 mL 1.2144 mL 2.4289 mL 3.0361 mL
10 mM 0.0607 mL 0.3036 mL 0.6072 mL 1.2144 mL 1.518 mL
50 mM 0.0121 mL 0.0607 mL 0.1214 mL 0.2429 mL 0.3036 mL
100 mM 0.0061 mL 0.0304 mL 0.0607 mL 0.1214 mL 0.1518 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.

References on [Nle4,D-Phe7]-α-MSH

[Nle4, D-Phe7]-α-MSH Inhibits Toll-Like Receptor (TLR)2- and TLR4-Induced Microglial Activation and Promotes a M2-Like Phenotype.[Pubmed: 27359332]

α-melanocyte stimulating hormone (α-MSH) is an anti-inflammatory peptide, proved to be beneficial in many neuroinflammatory disorders acting through melanocortin receptor 4 (MC4R). We previously determined that rat microglial cells express MC4R and that NDP-MSH, an analog of α-MSH, induces PPAR-γ expression and IL-10 release in these cells. Given the great importance of modulation of glial activation in neuroinflammatory disorders, we tested the ability of NDP-MSH to shape microglial phenotype and to modulate Toll-like receptor (TLR)-mediated inflammatory responses. Primary rat cultured microglia were stimulated with NDP-MSH followed by the TLR2 agonist Pam3CSK4 or the TLR4 agonist LPS. NDP-MSH alone induced expression of the M2a/M2c marker Ag1 and reduced expression of the M2b marker Il-4rα and of the LPS receptor Tlr4. Nuclear translocation of NF-κB subunits p65 and c-Rel was induced by LPS and these effects were partially prevented by NDP-MSH. NDP-MSH reduced LPS- and Pam3CSK4-induced TNF-α release but did not affect TLR-induced IL-10 release. Also, NDP-MSH inhibited TLR2-induced HMGB1 translocation from nucleus to cytoplasm and TLR2-induced phagocytic activity. Our data show that NDP-MSH inhibits TLR2- and TLR4-mediated proinflammatory mechanisms and promotes microglial M2-like polarization, supporting melanocortins as useful tools for shaping microglial activation towards an alternative immunomodulatory phenotype.

Evaluation of the immunogenicity of the synthetic α-melanocyte-stimulating hormone (α-MSH) analogue afamelanotide ([Nle4-D-Phe7]-α-MSH, Scenesse®) in erythropoietic protoporphyria patients by ELISA detecting both anti-afamelanotide and anti-α-MSH antibodies.[Pubmed: 25402764]

Afamelanotide is an α-melanocyte-stimulating hormone (α-MSH) agonist with proven efficacy in photodermatoses such as erythropoietic protoporphyria (EPP). This peptide drug, repeatedly administered over prolonged time, may induce anti-drug antibodies (ADA). Here, we describe a new ELISA method developed to monitor the occurrence of ADA against afamelanotide as well as against α-MSH. Covalent binding instead of absorption of antigen onto the microtitre wells prevented antigen leakage and enabled extensive washings followed by lower background. The cut-off between antibody-negative and -positive sera was determined. Inhibition of the antigen-antibody reaction by excess soluble antigen tested for specificity. The sensitivity of the ELISA was 608 and 1,390 ng/ml of specific ADA against afamelanotide and α-MSH, respectively. This ELISA method enabled us to investigate the occurrence of ADA during long-term administration of afamelanotide. No immunoreactivity was found in 23 of the 26 EPP patients exposed to the drug for up to 6 years. Pre-existing immunoreactivity against afamelanotide as well as α-MSH was found in 3 patients, whose titres did not change during afamelanotide administration.

Beneficial effects of the melanocortin analogue Nle4-D-Phe7-α-MSH in acne vulgaris.[Pubmed: 22845050]

α-Melanocyte-stimulating hormone (α-MSH) is a melanocortin peptide that increases skin pigmentation during ultraviolet light-mediated tanning. As α-MSH has been shown to possess anti-inflammatory effects, we assessed the clinical potential of a superpotent α-MSH analogue, afamelanotide (Nle(4)-D-Phe(7)-α-MSH), in patients with acne vulgaris, the most common inflammatory skin disorder.

Systemic photoprotection in solar urticaria with α-melanocyte-stimulating hormone analogue [Nle4-D-Phe7]-α-MSH.[Pubmed: 20969564]

Solar urticaria is a rare photosensitivity disorder demonstrating a range of action spectra, which can inflict a very large impact on life quality despite available treatments. Melanin broadly reduces skin penetration by ultraviolet-visible wavelengths, thus increased melanization may protect in solar urticaria.


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