26Rfa, Hypothalamic Peptide, human
26Rfa, Hypothalamic Peptide, human is a hypothalamic neuropeptide of the RFamide peptide family with orexigenic activity. 26RFa is an orexigenic neuropeptide identified as the endogenous ligand of the orphan G protein-coupled receptor GPR103.
For research use only. We do not sell to patients.
- CAS No.: 600171-68-4
- Formula: C127H195N37O37
- Molecular Weight:2832.13
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
All Neuropeptide Y Receptor Isoforms
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Biological Activity
Chemical Information
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CAS No. 600171-68-4
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Molecular Weight 2832.13
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Formula C127H195N37O37
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Sequence Shortening
TSGPLGNLAEELNGYSRKKGGFSFRF-NH2
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Solvent & Solubility
H2O
Peptide Solubility and Storage Guidelines:
1. Calculate the length of the peptide.
2. Calculate the overall charge of the entire peptide according to the following table:
| Contents | Assign value | |
| Acidic amino acid | Asp (D), Glu (E), and the C-terminal -COOH. | -1 |
| Basic amino acid | Arg (R), Lys (K), His (H), and the N-terminal -NH2 | +1 |
| Neutral amino acid | Gly (G), Ala (A), Leu (L), Ile (I), Val (V), Cys (C), Met (M), Thr (T), Ser (S), Phe (F), Tyr (Y), Trp (W), Pro (P), Asn (N), Gln (Q) | 0 |
3. Recommended solution:
| Overall charge of peptide | Details |
| Negative (<0) |
1. Try to dissolve the peptide in water first. 2. If water fails, add NH4OH (<50 μL). 3. If the peptide still does not dissolve, add DMSO (50-100 μL) to solubilize the peptide. |
| Positive (>0) |
1. Try to dissolve the peptide in water first. 2. If water fails, try dissolving the peptide in a 10%-30% acetic acid solution. 3. If the peptide still does not dissolve, try dissolving the peptide in a small amount of DMSO. |
| Zero (=0) |
1. Try to dissolve the peptide in organic solvent (acetonitrile, methanol, etc.) first. 2. For very hydrophobic peptides, try dissolving the peptide in a small amount of DMSO, and then dilute the solution with water to the desired concentration. |
Purity & Documentation
References
[1]. Chartrel N, et al.Identification of 26RFa, a hypothalamic neuropeptide of the RFamide peptide family with orexigenic activity. Proc Natl Acad Sci U S A. 2003 Dec 9;100(25):15247-52. [Content Brief]
[2]. Egido EM, et al. 26RFa, a novel orexigenic neuropeptide, inhibits insulin secretion in the rat pancreas. Peptides. 2007 Apr;28(4):725-30. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
26Rfa, Hypothalamic Peptide, human Related Classifications
HY-P1915 Related Classifications
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