LPYFD-NH2Binds Aβ; protects from aggregation induced toxicity CAS# 700361-48-4 |
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Quality Control & MSDS
Number of papers citing our products
Chemical structure
3D structure
| Cas No. | 700361-48-4 | SDF | Download SDF |
| PubChem ID | 90488910 | Appearance | Powder |
| Formula | C33H44N6O8 | M.Wt | 652.75 |
| Type of Compound | N/A | Storage | Desiccate at -20°C |
| Solubility | Soluble to 2 mg/ml in 10% acetonitrile / water | ||
| Sequence | LPYFD-NH2 (Modifications: Asp-5 = C-terminal amide) | ||
| Chemical Name | (3S)-4-amino-3-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-amino-4-methylpentanoyl]pyrrolidine-2-carbonyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-3-phenylpropanoyl]amino]-4-oxobutanoic acid | ||
| SMILES | CC(C)CC(C(=O)N1CCCC1C(=O)NC(CC2=CC=C(C=C2)O)C(=O)NC(CC3=CC=CC=C3)C(=O)NC(CC(=O)O)C(=O)N)N | ||
| Standard InChIKey | IZXBZWOUOODINS-IRGGMKSGSA-N | ||
| Standard InChI | InChI=1S/C33H44N6O8/c1-19(2)15-23(34)33(47)39-14-6-9-27(39)32(46)38-26(17-21-10-12-22(40)13-11-21)31(45)37-25(16-20-7-4-3-5-8-20)30(44)36-24(29(35)43)18-28(41)42/h3-5,7-8,10-13,19,23-27,40H,6,9,14-18,34H2,1-2H3,(H2,35,43)(H,36,44)(H,37,45)(H,38,46)(H,41,42)/t23-,24-,25-,26-,27-/m0/s1 | ||
| General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months. Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it. |
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| About Packaging | 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial. 2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial. 3. Try to avoid loss or contamination during the experiment. |
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| Shipping Condition | Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request. | ||
| Description | Neuroprotective peptide that binds to amyloid beta (Aβ). Protects neurons against toxic effects of Aβ (1-42) in vitro and in vivo. Potential therapeutic in the treatment of Alzheimer's Disease. |
LPYFD-NH2 Dilution Calculator
LPYFD-NH2 Molarity Calculator
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Pentapeptides derived from Abeta 1-42 protect neurons from the modulatory effect of Abeta fibrils--an in vitro and in vivo electrophysiological study.[Pubmed:15755677]
Neurobiol Dis. 2005 Apr;18(3):499-508.
Short fragments and fragment analogues of beta-amyloid 1-42 peptide (Abeta1-42) display a protective effect against Abeta-mediated neurotoxicity. After consideration of our earlier results with in vitro bioassay of synthetic Abeta-recognition peptides and toxic fibrillar amyloids, five pentapeptides were selected as putative neuroprotective agents: Phe-Arg-His-Asp-Ser amide (Abeta4-8) and Gly-Arg-His-Asp-Ser amide (an analogue of Abeta4-8), Leu-Pro-Tyr-Phe-Asp amide (an analogue of Abeta17-21), Arg-Ile-Ile-Gly-Leu amide (an analogue of Abeta30-34), and Arg-Val-Val-Ile-Ala amide (an analogue of Abeta38-42). In vitro electrophysiological experiments on rat brain slices demonstrated that four of these peptides counteracted with the field excitatory postsynaptic potential-attenuating effect of Abeta1-42; only Arg-Val-Val-Ile-Ala amide proved inactive. In in vivo experiments using extracellular single-unit recordings combined with iontophoresis, all these pentapeptides except Arg-Val-Val-Ile-Ala amide protected neurons from the NMDA response-enhancing effect of Abeta1-42 in the hippocampal CA1 region. These results suggest that Abeta recognition sequences may serve as leads for the design of novel neuroprotective compounds.
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