Atazanavir (BMS-232632) Sulfate

Catalog No.S1457 Batch:S145702

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Technical Data

Formula

C38H52N6O7.H2SO4

Molecular Weight 802.93 CAS No. 229975-97-7
Solubility (25°C)* In vitro DMSO 104 mg/mL (129.52 mM)
Ethanol 20 mg/mL (24.9 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 Atazanavir Sulfate (BMS-232632-05, Reyataz) is a HIV protease inhibitor with Ki of 2.66 nM in a cell-free assay.
Targets
HIV protease [1]
(Cell-free assay)
2.66 nM(Ki)
In vitro

Atazanavir inhibits the proteolytic cleavage of the viral gag precursor p55 polyprotein with IC50 of ~47 nM in virus-infected H9 cells. Atazanavir exhibits potent antiviral activity with EC50 of 3.89 nM in RF/MT-2 strains. [1]. Atazanavir is shown to be an inhibitor of bilirubin glucuronidation with IC50 of 2.4 μM. Atazanavir inhibits recombinant UGT1A1 with Ki of 1.9 μM. [2] Atazanavir inhibits cell growth in U251, T98G, and LN229 glioblastoma cell lines, with strikingly increased GRP78 and CHOP protein levels. Atazanavir causes a prominent increase of polyubiquitinated proteins of various different sizes in U251 glioblastoma cells. [3] Atazanavir also inhibits human 20S proteasome with IC50 of 26 μM. Atazanavir (30 μM) changes the magnitudes of ER stress and UPR gene expression in HepG2 cells. [4] Atazanavir (30 mM) causes a 2.5-fold increase in immunoreactive P-gp expression with decreased intracellular Rh123 in LS180V cells. [5]

Features Atazanavir is generally more potent than other HIV-1 Prt inhibitors, including IDV, SQV, RTV, NFV, and APV.

Protocol (from reference)

Kinase Assay:

[1]

  • Protease assays

    To determine the inhibition constants (Ki) for each Prt inhibitor, purified HIV-1 RF wild-type Prt (2.5 nM) is incubated at 37 ℃ with 1 μM to 15 μM fluorogenic substrate in reaction buffer (1 M NaCl, 1 mM EDTA, 0.1 M sodium acetate [pH 5.5], 0.1% polyethylene glycol 8000) in the presence or absence of Atazanavir. Cleavage of the substrate is quantified by measuring an increase in fluorescent emission at 490 nM after excitation at 340 nM using a Cytofluor 4000. Reactions are carried out using 1.36 μM, 1.66 μM, 2.1 μM, 3.0 μM, 5.0 μM, or 15 μM substrate in the presence of five concentrations of Atazanavir (1.25 nM to 25 nM). Substrate cleavage is monitored at 5-min intervals for 30 min. Cleavage rates are then determined for each sample at early time points in the reaction, and Ki values are determined from the slopes of the resulting Michaelis-Menten plots.

Cell Assay:

[1]

  • Cell lines

    RF/MT-2 strains

  • Concentrations

    15 nM

  • Incubation Time

    6 days

  • Method

    To determine cytotoxicity, host cells are incubated in the presence of serially diluted Atazanavir for 6 days and cell viability is quantitated using an XTT[2,3-bis(2-methoxy-4-nitro-5-sulfophenyl-2H-tetrazolium-5-carboxanilide] assay to calculate the 50% cytotoxic concentrations (CC50s). To assess the effect of human serum proteins on antiviral activity, the 10% fetal calf serum normally used for assays is replaced with 40% adult human serum or 1 mg of α1-acid glycoprotein/mL.

Customer Product Validation

Data from [Data independently produced by Reprod Toxicol, 2014, 50, 122-8]

Selleck's Atazanavir (BMS-232632) Sulfate has been cited by 17 publications

Single-cell morphology encodes functional subtypes of senescence in aging human dermal fibroblasts [ bioRxiv, 2024, 2024.05.10.593637] PubMed: 38798365
Establishment and Characterization of NCC-PMP1-C1: A Novel Patient-Derived Cell Line of Metastatic Pseudomyxoma Peritonei [ J Pers Med, 2022, 12(2)258] PubMed: 35207746
Establishment and characterization of NCC-UPS4-C1: a novel cell line of undifferentiated pleomorphic sarcoma from a patient with Li-Fraumeni syndrome [ Hum Cell, 2022, 10.1007/s13577-022-00671-y] PubMed: 35118583
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
Establishment and characterization of NCC-MFS4-C1: a novel patient-derived cell line of myxofibrosarcoma [ Hum Cell, 2021, 34(6):1911-1918] PubMed: 34383271
Establishment and characterization of novel patient-derived cell lines from giant cell tumor of bone [ Hum Cell, 2021, 10.1007/s13577-021-00579-z] PubMed: 34304386
Establishment and characterization of the NCC-GCTB4-C1 cell line: a novel patient-derived cell line from giant cell tumor of bone [ Hum Cell, 2021, 10.1007/s13577-021-00639-4] PubMed: 34731453
Antiretroviral Drugs Regulate Epigenetic Modification of Cardiac Cells Through Modulation of H3K9 and H3K27 Acetylation [ Front Cardiovasc Med, 2021, 8:634774] PubMed: 33898535
Establishment and characterization of patient-derived cancer models of malignant peripheral nerve sheath tumors. [ Cancer Cell Int, 2020, 19;20:58] PubMed: 32099531
Altered Gut Microbiome under Antiretroviral Therapy: Impact of Efavirenz and Zidovudine [ ACS Infect Dis, 2020, 10.1021/acsinfecdis.0c00536] PubMed: 33346662

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