Catalog No.S8007

VE-821 Chemical Structure

Molecular Weight(MW): 368.41

VE-821 is a potent and selective ATP competitive inhibitor of ATR with Ki/IC50 of 13 nM/26 nM in cell-free assays, shows inhibition of H2AX phosphorylation, minimal activity against PIKKs ATM, DNA-PK, mTOR and PI3Kγ.

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2 Customer Reviews

  • Western blot analysis of phospho-p53 and total p53 in H1 cells treated with 2 uM MNNG and the ATM-specific inhibitor KU5593, the ATR-specific inhibitor VE-821, or both for 24 h. The values represent the means of three independent experiments. Error bars represent S.E.

    J Biol Chem 2014 289(35), 24314-24. VE-821 purchased from Selleck.

    Western blot for γH2AX in H460 cells treated with Cr(VI) in the presence of a second set of inhibitors (ATM-i2—10 uM KU55933, DNAPK-i2—10 uM NU7441, ATR-i2—10 uM VE821). “γH2AX-total” numbers indicate a total normalized intensity of both γH2AX bands from 2 Western blots.

    Toxicol Sci 2014 10.1093/toxsci/kfu207. VE-821 purchased from Selleck.

Purity & Quality Control

Choose Selective ATM/ATR Inhibitors

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2. For more details, such as half maximal inhibitory concentrations (IC50s) and working concentrations of each inhibitor, please click on the link of the inhibitor of interest.
3. "+" indicates inhibitory effect. Increased inhibition is marked by a higher "+" designation.
4. Orange "√" refers to compounds which do inhibitory effects on the related isoform, but without specific value.

Biological Activity

Description VE-821 is a potent and selective ATP competitive inhibitor of ATR with Ki/IC50 of 13 nM/26 nM in cell-free assays, shows inhibition of H2AX phosphorylation, minimal activity against PIKKs ATM, DNA-PK, mTOR and PI3Kγ.
ATR [1]
(Cell-free assay)
13 nM(Ki)
In vitro

VE-821 shows excellent selectivity for ATR with minimal cross-reactivity against the related PIKKs ATM, DNA-PK, mTOR and PI3K (Kis of 16 μM, 2.2 μM, >1 μM and 3.9 μM, respectively. VE-821 alone commits a large fraction of cancer cell populations to death, but it only reversibly limits cell cycle progression in normal cells, with minimal death or long-term detrimental effects. VE-821 along with cisplatin treatment shows the most marked synergy. [1] VE-821 inhibits H2AX cell growth with IC50 of 800 nM. [2]

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
U2OS  Mn3mS5Jwf3SqIFnubIljcXSrb36gRZN{[Xl? NUTCUIFEUUN3MP-9olAvQCEQvF2= M4PKZlI2PTl|MUi0
SAOS2 NELUfHJIem:5dHigTY5pcWKrdHnvckBCe3OjeR?= MXrJR|Ux973gMD64JO69VQ>? MnrVNlU2QTNzOES=
CAL72 M2DZVGdzd3e2aDDJcohq[mm2aX;uJGF{e2G7 MULJR|Ux973gMD64JO69VQ>? NGLsbYMzPTV7M{G4OC=>
NOS1 MmrqS5Jwf3SqIFnubIljcXSrb36gRZN{[Xl? NGnyPXRKSzVy784eNE45KM7:TR?= MmTWNlU2QTNzOES=
HUO9 M3TMOWdzd3e2aDDJcohq[mm2aX;uJGF{e2G7 MonnTWM2OO,;nkCuPEDPxE1? NYC2OmVlOjV3OUOxPFQ>
MG63 NYm1fm9DT3Kxd4ToJGlvcGmkaYTpc44hSXO|YYm= MmHyTWM2OO,;nkmg{txO MYqyOVU6OzF6NB?=
SJSA1 NGS5VHRIem:5dHigTY5pcWKrdHnvckBCe3OjeR?= NWXPSW9SUUN3MP-9olkh|ryP MUCyOVU6OzF6NB?=
MDA-MB-231 M1fxWmN6fG:2b4jpZ4l1gSCDc4PhfS=> MoXQNU8{NzFyIN88US=> Mn\PNUBp MneydI91\W62aXH0[ZMhfGinIHP5eI91d3irY3n0fUBw\iCkb4ToJINidXC2b4To[YNqdiCjbnSgUG1RNTRyMB?= MYOyOVI3QTR5OR?=
HT-29 MVXDfZRwfG:6aXPpeJkhSXO|YYm= MYOxM|MwOTBizszN MkH0NUBp MkThdI91\W62aXH0[ZMhfGinIHP5eI91d3irY3n0fUBw\iCkb4ToJINidXC2b4To[YNqdiCjbnSgUG1RNTRyMB?= M3mz[FI2OjZ7NEe5
HCT-116 p53+/+ MVTDfZRwfG:6aXPpeJkhSXO|YYm= M3G2cFEwOy9zMDFOwG0> MoXNNUBp MVXwc5RmdnSrYYTld{B1cGViY4n0c5RwgGmlaYT5JI9nKGKxdHigZ4FueHSxdHjlZ4lvKGGwZDDMUXAuPDBy NGPBcFkzPTJ4OUS3PS=>
HCT-116 p53-/- MkS0R5l1d3SxeHnjbZR6KEG|c3H5 NHHpVmsyNzNxMUCg{txO NHfNUVAyKGh? M4\oSJBwfGWwdHnheIV{KHSqZTDjfZRwfG:6aXPpeJkhd2ZiYn;0bEBk[W2ydH;0bIVkcW5iYX7kJGxOWC12MEC= Mn3JNlUzPjl2N{m=
TF-1 MoLsS5Jwf3SqIFnubIljcXSrb36gRZN{[Xl? MWqwMlAyOeLCk{ig{txO MnGyPVYhcA>? MlGw[Y5p[W6lZYOgeIhmKGGwdHnwdo9tcW[ncnH0bZZmKGWoZnXjeJMhd2ZiTVuxO|c2 NVTpPVNnOjRzN{mxOVI>
HEL M1PnTmdzd3e2aDDJcohq[mm2aX;uJGF{e2G7 M1HocVAvODFz4pETPEDPxE1? NYjKeXZtQTZiaB?= M3;WT4VvcGGwY3XzJJRp\SCjboTpdJJwdGmoZYLheIl3\SCnZn\lZ5R{KG:oIF3LNVc4PQ>? M1nYVlI1OTd7MUWy
THP-1 NV;sclZIT3Kxd4ToJGlvcGmkaYTpc44hSXO|YYm= NViwT3FSOC5yMUJihLM5KM7:TR?= NYj0V25HQTZiaB?= NIW1fWhmdmijbnPld{B1cGViYX70bZBzd2yrZnXyZZRqfmViZX\m[YN1eyCxZjDNT|E4PzV? NGmxRWIzPDF5OUG1Ni=>
HL-60  NIrRdoFHfW6ldHnvckBCe3OjeR?= M4jFeFExKG2P MUCwMlUhcA>? NInhc5lz\WS3Y3XzJJBpd3OyaH;yfYxifGmxbjDv[kBEcGtzIHH0JJNmemmwZTCzOFU> M3XqdFI{QTN2NEGx
OVCAR-8  MVnGeY5kfGmxbjDBd5NigQ>? NITySm8yKML3TdMg NXjIeJA5OjRiaB?= MonBZYJzd2ejdHXzJINp\W2xdHjldoFxgS2rbnT1Z4VlKGOnbHygZ5lkdGViYYLy[ZN1 MkW4NlM2PDh{Nkm=
PANC-1 NULWZ4t[T3Kxd4ToJGlvcGmkaYTpc44hSXO|YYm= NUfFU4NPOC5zMT25JO69VQ>? MVixJIg> NWf3XldGcW6qaXLpeJMhfGinIHPlcIwhfmmjYnnsbZR6KGmwIHGg[I9{\S1iZHXw[Y5l\W62IH3hco5meg>? MXyyNlgzPTN|MR?=
MiaPaCa MUPHdo94fGhiSX7obYJqfGmxbjDBd5NigQ>? NIfkU|YxNjFzLUmg{txO MofHNUBp MnLFbY5pcWKrdIOgeIhmKGOnbHygeoli[mmuaYT5JIlvKGFiZH;z[U0h\GWyZX7k[Y51KG2jbn7ldi=> MVOyNlgzPTN|MR?=
PSN-1 NH71SpRIem:5dHigTY5pcWKrdHnvckBCe3OjeR?= NXTBPI5sOC5zMT25JO69VQ>? MnLqNUBp NGOwUVVqdmirYnn0d{B1cGViY3XscEB3cWGkaXzpeJkhcW5iYTDkc5NmNSCmZYDlcoRmdnRibXHucoVz NXu3b|RtOjJ6MkWzN|E>

... Click to View More Cell Line Experimental Data


Kinase Assay:[2]
+ Expand

Kinase inhibition:

The ability of compounds to inhibit ATR, ATM or DNAPK kinase activity istested using a radiometric-phosphate incorporation assay. A stock solution isprepared consisting of the appropriate buffer, kinase, and target peptide. To this isadded the compound of interest, at varying concentrations in DMSO to a final DMSO concentration of 7%. Assays are initiated by addition of an appropriate [γ-33P]ATP solution and incubated at 25 ℃. Assays are stopped, after the desired time course, by addition of phosphoric acid and ATP to a final concentration of 100 mM and 0.66μM, respectively. Peptides are captured on a phosphocellulose membrane, prepared as per manufacturer's instructions, and washed six times with 200 μL of 100 mM phosphoric acid, prior to the addition of 100 μL of scintillation cocktail and scintillation counting on a 1450 Microbeta Liquid Scintillation Counter. Dose−response data are analyzed using GraphPad Prism software

Solubility (25°C)

In vitro DMSO 74 mg/mL (200.86 mM)
Water <1 mg/mL
Ethanol <1 mg/mL
In vivo 30% PEG400+0.5% Tween80+5% propylene glycol 30 mg/mL

* 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.

Chemical Information

Molecular Weight 368.41


CAS No. 1232410-49-9
Storage powder
Synonyms N/A

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Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID