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Lupus autoantigen peptide (LAP), a derivative of the autoantigen La found in systemic lupus erythematosus (SLE) patients, spans amino acids 11-28 of La and functions as an antiviral peptide. It primarily blocks the hepatitis C virus (HCV) from interacting with internal ribosome entry site (IRES) trans-acting factors (ITAFs), notably the polypyrimidine tract-binding protein (PTB) and poly(rC)-binding protein 2 (PCBP2). In a Huh7 cell-based reporter assay, LAP at a concentration of 60 µM effectively hampers HCV IRES-mediated translation, a process reversible by adding recombinant forms of PTB and PCBP2.

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $55 | Inquiry | Inquiry | |
| 5 mg | $256 | Inquiry | Inquiry | |
| 10 mg | $483 | Inquiry | Inquiry | |
| 25 mg | $1,130 | Inquiry | Inquiry |
| Description | Lupus autoantigen peptide (LAP), a derivative of the autoantigen La found in systemic lupus erythematosus (SLE) patients, spans amino acids 11-28 of La and functions as an antiviral peptide. It primarily blocks the hepatitis C virus (HCV) from interacting with internal ribosome entry site (IRES) trans-acting factors (ITAFs), notably the polypyrimidine tract-binding protein (PTB) and poly(rC)-binding protein 2 (PCBP2). In a Huh7 cell-based reporter assay, LAP at a concentration of 60 µM effectively hampers HCV IRES-mediated translation, a process reversible by adding recombinant forms of PTB and PCBP2. |
| Synonyms | Lupus Autoantigen Peptide, La Peptide |
| Molecular Weight | 2117.40 |
| Formula | C99H141N23O27S.XCF3COOH |
| Smiles | OC(C(F)(F)F)=O.C[C@H](N)C(N[C@@H](C)C(N[C@@H](CC(C)C)C(N[C@H](C(N[C@@H](C)C(N[C@H](C(N[C@@]([H])([C@H](CC)C)C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@]([H])([C@H](CC)C)C(N[C@H](C(N[C@H](C(N[C@H](C(N[C@@H](CC1=CC=CC=C1)C(NCC(N[C@H](C(N[C@@H](CC2=CC=CC=C2)C(N)=O)=O)CC(O)=O)=O)=O)=O)CC3=CC=C(C=C3)O)=O)CC4=CC=C(C=C4)O)=O)CCC(O)=O)=O)=O)CCC(N)=O)=O)CC5=CNC=N5)=O)CS[H])=O)=O)CCCCN)=O)=O)CCC(O)=O)=O)=O)=O |
| Storage | keep away from moisture | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | ||||||||||
| Solubility Information | DMSO: 10 mg/mL (4.72 mM), Sonication is recommended. | ||||||||||
Solution Preparation Table | |||||||||||
DMSO
| |||||||||||
Dissolve 2 mg of the compound in 100 μL DMSO
to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
1) Add 100 μL of the DMSO
stock solution to 400 μL PEG300
and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O
and mix thoroughly until a homogeneous solution is obtained.
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