alpha-CGRP (8-37) (human) / Calcitonin Gene Related Peptide (8-37), human
Not For Human Use, Lab Use Only.
Cat.#: 309978
Optional Service:
TFA RemovalWhat's this?
Special Price 379.5 USD
Availability:
4 weeks
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Product Name
alpha-CGRP (8-37) (human) / Calcitonin Gene Related Peptide (8-37), human
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Documents
Batch to batch variation of the purity
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Sequence Shortening
VTHRLAGLLSRSGGVVKNNFVPTNVGSKAF
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Sequence
H-Val-Thr-His-Arg-Leu-Ala-Gly-Leu-Leu-Ser-Arg-Ser-Gly-Gly-Val-Val-Lys-Asn-Asn-Phe-Val-Pro-Thr-Asn-Val-Gly-Ser-Lys-Ala-Phe-NH2
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Length (aa)
30
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Peptide Purity (HPLC)
97.2%
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Molecular Formula
C139H230N44O38
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Molecular Weight
3125.63 net
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Source
Synthetic
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Form
Powder
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Description
CGRP and calcitonin cross-react with each other at the levels of their distinct receptors. alpha-CGRP (8-37) has been described as a selective antagonist for CGRP receptors but not for calcitonin receptors. This fragment thus appears to be a valuable tool for receptor characterization studies.
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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
- T.Chiba et al., Am. J. Physiol., 256, E331 (1989)
- U.Zimmermann et al., Peptides, 16, 421 (1995)
- G.Gherardini et al., Neuropeptides, 32, 269 (1998)
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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)
Peptide Property
- Analysed Sequence:A
- Chemical Formula:A
- Sequence length:A
- Extinction coefficient:A M-1cm-1
- GRAVY:A
- Mw average:A
- Theoretical pI:A
- Data Source:Peptide Property Calculator
GRAVY = grand average of hydropathy
X: Hydrophobic uncharged residues, like F I L M V W A and P
X: Basic residues, like R K H
X: Acidic residues, like D E
X: Polar uncharged residues, like G S T C N Q and Y
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• 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"