Amprenavir (VX-478)

Catalog No.S1639 Batch:S163904

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Technical Data

Formula

C25H35N3O6S
Molecular Weight 505.63 CAS No. 161814-49-9
Solubility (25°C)* In vitro DMSO 100 mg/mL (197.77 mM)
Ethanol 100 mg/mL (197.77 mM)
Water Insoluble
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description Amprenavir (VX-478, 141W94, KVX-478) is a potent PXR-selective agonist, and an HIV protease inhibitor, used to treat HIV.
Targets
PXR [1] HIV protease [1]
14.6 ng/mL
In vitro Amprenavir promotes the specific interactions between the nuclear receptor pregnane X receptor (PXR) and the coactivators SRC-1 and PBP. Amprenavir is docked into the high-resolution crystal structure of human PXR in complex with SR12813. Amprenavir occupies all four subpockets, and its hydroxyl group forms a hydrogen bond with Ser247, which is located in the connection region of PXR, to help to position the drug in the optimal orientation inside the receptor. Amprenavir forms direct contacts with one residue on αAF of the PXR activation function-2 (AF-2) surface, Phe429, which may stabilize the active AF-2 conformation of the receptor and contribute to the agonist activity of amprenavir on PXR. Amprenavir induces the expression of bona fide PXR target genes involved in phase I (CYP3A4), phase II (UGT1A1), and phase III (MDR1) metabolism in both HepaRG cells and LS180 cells. [1]
In vivo Amprenavir increases atherogenic LDL cholesterol fractions in WT mice, but not in PXR−/− mice. Amprenavir stimulates expression of known PXR target genes, including CYP3A11, glutathione transferase A1, and MDR1a, in the intestine of WT mice but not in PXR−/− mice. Amprenavir-mediated PXR activation stimulates the expression of both LipF and LipA in the intestine of WT mice, but not in PXR−/− mice, indicating a possible role of intestinal PXR in mediating dietary lipid breakdown and absorption in mammals. [1]

Protocol (from reference)

Selleck's Amprenavir (VX-478) has been cited by 4 publications

Reactivated endogenous retroviruses promote protein aggregate spreading [ Nat Commun, 2023, 14(1):5034] PubMed: 37596282
Reactivated endogenous retroviruses promote protein aggregate spreading [ Nat Commun, 2023, 14(1):5034] PubMed: 37596282
Characterization of fluorescent probe substrates to develop an efficient high-throughput assay for neonatal hepatic CYP3A7 inhibition screening [ Sci Rep, 2021, 11(1):19443] PubMed: 34593846
Discovery of M Protease inhibitors encoded by SARS-CoV-2 [ Antimicrob Agents Chemother, 2020, AAC.00872-20] PubMed: 32669265

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.