Ghrelin [1-27] peptide
Not For Human Use, Lab Use Only.
Cat.#: 300217
Special Price 341.6 USD
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Product Name
Ghrelin [1-27] peptide
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Documents
Batch to batch variation of the purity
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Sequence Shortening
H-GSSFLSPEHQRVQQRKESKKPPAKLQP-OH
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Sequence
H-Gly-Ser-Ser-Phe-Leu-Ser-Pro-Glu-His-Gln-Arg-Val-Gln-Gln-Arg-Lys-Glu-Ser-Lys-Lys-Pro-Pro-Ala-Lys-Leu-Gln-Pro-OH
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Length (aa)
27
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Peptide Purity (HPLC)
95.13%
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Molecular Formula
C135H223N43O40
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Molecular Weight
3088.46
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Source
Synthetic
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Form
Powder
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Description
Ghrelin [1-27] is a synthetic peptide derived from ghrelin, a 28-amino acid peptide that acts as an endogenous ligand for the growth hormone secretagogue receptor (GHS-R).
Ghrelin [1-27] lacks the C-terminal Arg 28 residue found in the full-length ghrelin peptide. It is one of the ghrelin-derived molecules that were isolated and characterized during the purification of human ghrelin from the stomach.
Synthetic Ghrelin [1-27] has been shown to induce increases in intracellular calcium levels in cells expressing GHS-R, similar to other ghrelin forms such as ghrelin, decanoyl ghrelin, and decanoyl ghrelin-(1-27). -
Storage Guidelines
Normally, this peptide will be delivered in lyophilized form and should be stored in a freezer at or below -20 °C. For more details, please refer to the manual:Handling and Storage of Synthetic Peptides
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References
- Hosoda H, Kojima M, Mizushima T, Shimizu S, Kangawa K. Structural divergence of human ghrelin. Identification of multiple ghrelin-derived molecules produced by post-translational processing. J Biol Chem. 2003;278(1):64-70.
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About TFA salt
Trifluoroacetic acid (TFA) has a significant impact on peptides due to its role in the peptide synthesis process.
TFA is essential for the protonation of peptides that lack basic amino acids such as Arginine (Arg), Histidine (His), and Lysine (Lys), or ones that have blocked N-termini. As a result, peptides often contain TFA salts in the final product.
TFA residues, when present in custom peptides, can cause unpredictable fluctuations in experimental data. At a nanomolar (nM) level, TFA can influence cell experiments, hindering cell growth at low concentrations (as low as 10 nM) and promoting it at higher doses (0.5–7.0 mM). It can also serve as an allosteric regulator on the GlyR of glycine receptors, thereby increasing receptor activity at lower glycine concentrations.
In an in vivo setting, TFA can trifluoroacetylate amino groups in proteins and phospholipids, inducing potentially unwanted antibody responses. Moreover, TFA can impact structure studies as it affects spectrum absorption.
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Molar Concentration Calculator
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Dilution Calculator
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Percent Concentration Calculator
Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)
Related Products / Services
• Peptide Services: NovoPro's peptide synthesis services include standard chemical peptide synthesis, peptide modification, peptide libraries, and recombinant peptide expression.
• Standard Peptide Synthesis: NovoPro offers quality peptides at the most competitive prices in the industry, starting at $3.20 per amino acid. NovoPro provides PepBox – Automatic Quote Tool for online price calculation.
• Peptide Modifications: NovoPro offers a wide range of peptide modification services including isotope labeling (2H, 15N, and 13C), multiple disulfide bonds, multiple phosphorylations, KLH, BSA, ovalbumin, amidation, acetylation, biotin, FITC, etc.
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"