Luqin peptide
Not For Human Use, Lab Use Only.
Cat.#: 318314
Special Price 97.8 USD
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Product Name
Luqin peptide
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Sequence Shortening
APSWRPQGRF
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Sequence
H-Ala-Pro-Ser-Trp-Arg-Pro-Gln-Gly-Arg-Phe-OH
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Length (aa)
10
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Peptide Purity (HPLC)
95.4%
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Molecular Formula
C55H80N18O13
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Molecular Weight
1200.62
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Source
Synthetic
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Form
Powder
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Description
The source of Luqin is Aplysia californica. Luqin is expressed in Neurons L2-4 and L6, also called giant dorsal LUQ (Left Upper Quadrant) neurons of the abdominal ganglion. Also expressed in smaller neurons in the CNS and in peripheral organs such as the kidney. The peptide has the modification: 10 Phe amide
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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
- Aloyz R.S., DesGroseillers L.; Processing of the L5-67 precursor peptide and characterization of LUQIN in the LUQ neurons of Aplysia californica.; Peptides 16:331-338(1995).
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About TFA salt
Trifluoroacetic acid (TFA) is a strong acid, which is commonly used to cleave synthesized peptides from solid-phase resins and is also used to improve HPLC performance in the peptide purification step. By default, custom peptides are delivered as lyophilized TFA salts, and can contain as much as 10-45% TFA.
TFA in custom peptides can cause inexplicable discrepancies in subsequent assay data. For instance, TFA in nM concentrations has been shown to interfere with cellular assays, inhibiting cellular proliferation in some instances, and increasing cell viability in others . It has also been found to be an unintended allosteric modulator of the glycine receptor, GlyR.
TFA Removal Service is recommended for:
- Peptides that will be used in cellular assays
- Peptides that will be used as APIs or in manufactured products
- For hydrophilic peptides containing numerous basic residues
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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:H-APSWRPQGRF-Amidation
- Chemical Formula:C55H81N19O12
- Sequence length:10
- Extinction coefficient:5690 M-1cm-1
- GRAVY:-1.32
- Mw average:1200.35
- Theoretical pI:12.4
- 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
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"