Home Proteases HIV Protease inhibitor Atazanavir (BMS-232632) Sulfate For research use only.

Atazanavir (BMS-232632) Sulfate

Synonyms: BMS-232632-05, Reyataz

Atazanavir Sulfate (BMS-232632-05, Reyataz) is a HIV protease inhibitor with Ki of 2.66 nM in a cell-free assay.

Atazanavir (BMS-232632) Sulfate Chemical Structure

Atazanavir (BMS-232632) Sulfate Chemical Structure

CAS: 229975-97-7

Selleck's Atazanavir (BMS-232632) Sulfate has been cited by 16 Publications

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Purity & Quality Control

Batch: Purity: 99.98%
99.98

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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.
Features Atazanavir is generally more potent than other HIV-1 Prt inhibitors, including IDV, SQV, RTV, NFV, and APV.
Targets
HIV protease [1]
(Cell-free assay)
2.66 nM(Ki)
In vitro
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]
Kinase Assay 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 Research 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.

Chemical lnformation & Solubility

Molecular Weight 802.93 Formula

C38H52N6O7.H2SO4
CAS No. 229975-97-7 SDF --
Smiles CC(C)(C)C(C(=O)NC(CC1=CC=CC=C1)C(CN(CC2=CC=C(C=C2)C3=CC=CC=N3)NC(=O)C(C(C)(C)C)NC(=O)OC)O)NC(=O)OC.OS(=O)(=O)O
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 100 mg/mL ( (124.54 mM)； Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble


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In vivo
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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

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