NMS-873

Catalog No.S7285

NMS-873 Chemical Structure

Molecular Weight(MW): 520.67

NMS-873 is an allosteric and specific p97 inhibitor with IC50 of 30 nM that demonstrates potent selectivity for VCP/p97 compared to a panel of other AAA ATPases, Hsp90, and 53 additional analyzed kinases (IC50s >10 μM).

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1 Customer Review

  • (E) The mDPC level induced by HN2 in the presence of MG132 or NMS-873. MG132 or NMS-873 were added for 3 h after HN2 exposure and then replaced by normal medium until 24 h.

    Toxicol Appl Pharmacol, 2016, 305:267-73.. NMS-873 purchased from Selleck.

Purity & Quality Control

Choose Selective p97 Inhibitors

Biological Activity

Description NMS-873 is an allosteric and specific p97 inhibitor with IC50 of 30 nM that demonstrates potent selectivity for VCP/p97 compared to a panel of other AAA ATPases, Hsp90, and 53 additional analyzed kinases (IC50s >10 μM).
Features The most potent and specific p97 inhibitor described to date.
Targets
p97 [1]
(Cell-free assay)
30 nM
In vitro

NMS-873 reduces p97 sensitivity to trypsin digestion, preventing degradation of the linker-D2 domain. NMS-873, as a p97 inhibitor, produces antiproliferative activity in a variety of hematological and solid tumor lines. The mechanism study indicates that NMS-873 activates the unfolded protein response, interfers with autophagy and thus induces cancer cell death. [1]

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
Hi5 cells MlqySpVv[3Srb36gZZN{[Xl? NVixU2pFOjBibXnudy=> NGW2T5ZKdmirYnn0bY9vKG:oIHj1cYFvKHKnY3;tZolv[W62IFjpd{1IW1RidHHn[4VlKF[FUDDlfJBz\XO|ZXSgbY4h[mGldXzveolzfXNiaX7m[YN1\WRiSHm1JINmdGy|IHHzd4V{e2WmIHHzJGFFWCCob4LtZZRqd25iaX7jeYJifGWmIH\vdkAzOCCvaX7zJJBzd2m{IITvJJN2[nO2cnH0[UBi\GSrdHnvckBu\WG|dYLl[EBi\nSncjC5NEBucW6|IHL5JG5CTEhiY3;1dIxm\CCjc4PhfUwhUUN3ME2wMlAzPCEQvF2= M{PPR|I{OjR3M{Gx
HCT116 cells MontR5l1d3SxeHnjxsBie3OjeR?= M1\TPVczKGh? MYXDfZRwfG:6aXPpeJkh[WejaX7zeEBpfW2jbjDIR3QyOTZiY3XscJMh[W[2ZYKgO|IhcHK|IHL5JIx2[2moZYLhd4UhemWyb4L0[ZIh\2WwZTDhd5NigSxiSVO1NF0xNjN6IN88US=> MWO3NVUzOTF2Mh?=

... Click to View More Cell Line Experimental Data

Protocol

Kinase Assay:

[1]

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Biochemical assay development and HTS:

The ATPase activity and the kinetic parameters of recombinant wild-type VCP and its mutants are evaluated by monitoring ADP formation in the reaction, using a modified NADH-coupled assay. As ADP and NADH are ATP-competitive inhibitors of VCP ATPase activity, the standard protocol for the NADH-coupled assay is modified into a two-step procedure. In the first part, an ATP-regenerating system (40 U/ml pyruvate kinase and 3 mM phosphoenolpyruvate) recycles the ADP produced by VCP activity, keeps the substrate concentration constant (thus preventing product inhibition) and accumulates a stoichiometric amount of pyruvate. In the second part, the VCP enzymatic reaction is quenched with 30 mM EDTA and 250 μM NADH and stoichiometrically oxidized by 40 U/ml lactic dehydrogenase to reduce accumulated pyruvate. The decrease of NADH concentration is measured at 340 nm using a Tecan Safire 2 reader plate. The assay is performed in 96- or 384-well UV plates in a reaction buffer with 50 mM Hepes, pH 7.5, 0.2 mg/mL BSA, 10 mM MgCl2 and 2 mM DTT. Experimental data are fitted with a cooperative equation obtaining a Ks* of about 60 μM and a Hill coefficient (n) of 2.0 ± 0.1. The HTS campaign is performed against a 1-million-compound library using a miniaturized assay in 1,536-well format and a more sensitive ADP detection system, Transcreener ADP FP. A 20-min preincubation of 10 nM VCP and 10 μM inhibitor is performed, after which 10 μM ATP is added to the reaction, which is allowed to proceed for 90 min before quenching. The average Z′ of the screening is 0.58, and the hit rate using 3× s.d. (38% inhibition) as cutoff is 1.7%. Primary hits with >60% inhibition at 10-μM concentration are pruned using physicochemical and structural filters to leave 7,516 compounds. At the end, reconfirmation is performed in duplicate on 3,988 primary hits, and 500 compounds are selected for a dose-response evaluation using the previously described NADH-modified coupled assay. The potency of the most interesting HTS hits is measured against both wild-type VCP and the C522T mutant. ATP concentrations that yielded the half-maximal velocity (Ks*) for each enzyme, corresponding to 60 μM and 130 μM for the wild type and C522T mutant, respectively, are used in the assay. To explore the dependency of reversible inhibitors from substrate concentration, their potency is evaluated also at saturating ATP concentration (1 mM) and compared to the potency of a standard ATP competitive inhibitor (AMP-PNP).
Cell Research:

[1]

+ Expand
  • Cell lines: A variety of hematological and solid tumor lines
  • Concentrations: ~10 μM
  • Incubation Time: 72 hours
  • Method:

    Cells are seeded at 1,600 cells per well in 384-well white clear-bottom plates. Twenty-four hours after seeding, cells are treated with the compounds (eight dilution points, in duplicate, for each compound) and incubated for an additional 72 h at 37 °C under a 5% CO2 atmosphere. Cells are then lysed, and the ATP content in each well is determined using a thermostable firefly luciferase–based assay as a measure of cell viability. IC50 values are calculated using the percentage of growth of treated cells versus the untreated control.


    (Only for Reference)

Solubility (25°C)

In vitro DMSO 100 mg/mL (192.06 mM)
Water Insoluble
Ethanol 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.

Chemical Information

Molecular Weight 520.67
Formula

C27H28N4O3S2

CAS No. 1418013-75-8
Storage powder
Synonyms N/A

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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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p97 Signaling Pathway Map

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID