Fibrinopeptide B, human
Fibrinopeptide B, human is a 14-aa peptide, released from the amino-terminus of β-chains of fibrinogen by thrombin.
For research use only. We do not sell to patients.
- CAS No.: 36204-23-6
- Formula: C66H93N19O25
- Molecular Weight:1552.56
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Fibrinopeptide B, human is released from the amino-terminus of the B 3-chains of fibrinogen by thrombin. Fibrinopeptide B, human (hFpB, 10 nM) causes directed cell migration of neutrophils (PMN), and fibroblasts. Fibrinopeptide B, human also possesses potent chemotactic activity relative to human complement (C5a), leukotriene B4 (LTB4), and formyl-methionylleucyl-phenylalanine (fMLP), and for fibroblasts its chemotactic activity is comparable to that of platelet-derived growth factor. However, Fibrinopeptide B, human is not chemotactic for monocytes, and shows no interaction with PMN receptor for C5a, LTB4, or fMLP[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 36204-23-6
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Molecular Weight 1552.56
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Formula C66H93N19O25
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Synonyms
FPB,human
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Sequence
{Glp}-Gly-Val-Asn-Asp-Asn-Glu-Glu-Gly-Phe-Phe-Ser-Ala-Arg
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Sequence Shortening
{Glp}-GVNDNEEGFFSAR
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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
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)