MSG 606

Potent human MC1 receptor antagonist (IC50 = 17 nM), and alsoMC3 and MC5 partial agonist (EC50 values are 59 and 1300 nM, respectively). Exhibits binding affinity for A375 melanoma.

Designed for biological research and industrial applications, not intended for individual clinical or medical purposes.
MSG 606(CAS 1416983-77-1)

CAT No: R1043

CAS No:1416983-77-1

Synonyms/Alias:MSG 606;1416983-77-1;AKOS030210970;DA-75773;PD080301;G15882;

Custom Peptide Synthesis
cGMP Peptide
  • Registration of APIs
  • CMC information required for an IND
  • IND and NDA support
  • Drug master files (DMF) filing
M.F/Formula
C62H82N20O13S
M.W/Mr.
1347.5
Sequence
XGHFRWCDRFG(Modifications: X = Butanoic acid, Gly-11 = C-terminal amide, Phe-4 = D-Phe, Trp-6 = D-Trp, carba sulfide bridge between X-1 - Cys-7)
Labeling Target
MC1 receptor
Activity
Antagonist

MSG 606 is a synthetic peptide compound recognized for its utility in peptide research and biochemical studies. As a precisely defined sequence, MSG 606 offers valuable functionality for investigating peptide structure-activity relationships, receptor interactions, and protein engineering. Its stable and reproducible characteristics make it an ideal tool for researchers seeking to elucidate molecular mechanisms or develop novel peptide-based methodologies. The compound's well-characterized nature ensures consistent results across various experimental settings, supporting its relevance in modern biochemical and pharmaceutical research.

Peptide structure-activity relationship studies: MSG 606 serves as an important model peptide for probing the relationship between amino acid sequence and biological activity. Researchers utilize it to systematically modify residue positions or functional groups, enabling the identification of motifs critical for binding, signaling, or enzymatic recognition. Such studies are fundamental for understanding the molecular determinants of peptide function and for guiding the rational design of new bioactive sequences.

Receptor binding assays: Due to its defined sequence and predictable properties, MSG 606 is frequently employed in receptor binding experiments. It can act as a ligand or competitor in assays designed to map receptor specificity, affinity, and activation profiles. These applications are essential for characterizing peptide-receptor interactions, screening for novel binding partners, or validating the selectivity of candidate drug targets in both academic and industrial research environments.

Peptide synthesis validation: MSG 606 is commonly used as a reference or control in solid-phase peptide synthesis protocols. Its known sequence and behavior allow chemists to optimize coupling efficiencies, evaluate resin performance, and troubleshoot synthesis workflows. By serving as a benchmark, it helps ensure the reliability and reproducibility of custom peptide production, which is critical for downstream applications in both research and development settings.

Analytical method development: The compound is valuable in the development and validation of analytical techniques such as high-performance liquid chromatography (HPLC) and mass spectrometry. MSG 606 provides a reliable standard for calibrating instrumentation, assessing method sensitivity, and establishing detection limits. This role is particularly important when laboratories require robust protocols for the quantification, purity assessment, or identification of peptides in complex mixtures.

Functional studies in biochemical assays: Researchers integrate MSG 606 into a variety of functional assays to investigate enzymatic cleavage, post-translational modifications, or peptide stability under different conditions. Its predictable properties make it suitable for use as a substrate or control, facilitating the study of protease specificity, modification patterns, or degradation kinetics. These applications are instrumental in advancing the understanding of peptide dynamics and enzyme-substrate interactions within biological systems.

InChI
InChI=1S/C62H82N20O13S/c63-49(83)31-73-53(88)43(24-35-12-3-1-4-13-35)78-54(89)41(18-9-21-69-61(64)65)77-59(94)47(28-52(86)87)81-60(95)48-33-96-23-11-20-50(84)72-32-51(85)75-46(27-38-30-68-34-74-38)58(93)79-44(25-36-14-5-2-6-15-36)56(91)76-42(19-10-22-70-62(66)67)55(90)80-45(57(92)82-48)26-37-29-71-40-17-8-7-16-39(37)40/h1-8,12-17,29-30,34,41-48,71H,9-11,18-28,31-33H2,(H2,63,83)(H,68,74)(H,72,84)(H,73,88)(H,75,85)(H,76,91)(H,77,94)(H,78,89)(H,79,93)(H,80,90)(H,81,95)(H,82,92)(H,86,87)(H4,64,65,69)(H4,66,67,70)/t41-,42-,43-,44-,45-,46-,47-,48-/m0/s1
InChI Key
QJBNFEXQHBDMQM-VTWSTLNFSA-N
Isomeric SMILES
C1CC(=O)NCC(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSC1)C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CC2=CC=CC=C2)C(=O)NCC(=O)N)CC3=CNC4=CC=CC=C43)CCCN=C(N)N)CC5=CC=CC=C5)CC6=CN=CN6

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