GSK126

Catalog No.S7061 Synonyms: GSK2816126A, GSK2816126

For research use only.

GSK126 (GSK2816126A, GSK2816126) is a potent, highly selective EZH2 methyltransferase inhibitor with IC50 of 9.9 nM, >1000-fold selective for EZH2 over 20 other human methyltransferases.

GSK126 Chemical Structure

CAS No. 1346574-57-9

Selleck's GSK126 has been cited by 109 publications

Purity & Quality Control

Choose Selective Histone Methyltransferase Inhibitors

Biological Activity

Description GSK126 (GSK2816126A, GSK2816126) is a potent, highly selective EZH2 methyltransferase inhibitor with IC50 of 9.9 nM, >1000-fold selective for EZH2 over 20 other human methyltransferases.
Targets
EZH2 [1]
(Cell-free assay)
9.9 nM
In vitro

In vitro, GSK126 most potently inhibits H3K27me3, followed by H3K27me2 in both EZH2 wild-type and mutant DLBCL cell lines. GSK126 also effectively inhibits the proliferation of EZH2 mutant DLBCL cell lines, and induces transcriptional activation of EZH2 target genes in sensitive cell lines. [1] In A687V EZH2-mutant cells, GSK126 treatment results in a global decrease in H3K27me3, robust gene activation, caspase activation, and decreased proliferation. [2] In parental H2087 cells, GSK126 inhibits the expression of VEGF-A and phosphorylated Ser(473)-AKT, and thus causes the inhibition of cell proliferation, migration and metastasis. [3]

Cell Data
Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
human U87MG cells NIDJemxEgXSxdH;4bYPDqGG|c3H5 MWG3NkBp M2rCU2N6fG:2b4jpZ4l1gSCjZ3HpcpN1KGi3bXHuJHU5P02JIHPlcIx{KGG|c3Xzd4VlKGG|IHfyc5d1cCCrbnjpZol1cW:wIHHmeIVzKDd{IHjyd{BjgSCZU2StNUBie3OjeTygS2k2OD1{OD61JO69VS5? MkfuQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjR5Nke4OVAoRjJ2N{[3PFUxRC:jPh?=
human A549 cells MoH5R5l1d3SxeHnjxsBie3OjeR?= MmTHO|IhcA>? MUjDfZRwfG:6aXPpeJkh[WejaX7zeEBpfW2jbjDBOVQ6KGOnbHzzJIF{e2W|c3XkJIF{KGe{b4f0bEBqdmirYnn0bY9vKGGodHXyJFczKGi{czDifUBYW1RvMTDhd5NigSxiR1m1NF0yQC55IN88UU4> M3G5WlxiKHSjcnfleF0oZ2KuYX7rK{BpemWoPTfoeJRxezpxL4D1Zo1m\C6wY3LpMo5tdS6waXiu[493NzJ2N{[3PFUxLz5{NEe2O|g2ODxxYU6=
human T98G cells NInucIZEgXSxdH;4bYPDqGG|c3H5 M{PnTlczKGh? NHHCbYFEgXSxdH;4bYNqfHliYXfhbY5{fCCqdX3hckBVQTiJIHPlcIx{KGG|c3Xzd4VlKGG|IHfyc5d1cCCrbnjpZol1cW:wIHHmeIVzKDd{IHjyd{BjgSCZU2StNUBie3OjeTygS2k2OD1zMj62JO69VS5? NHzBbHo9[SC2YYLn[ZQ:L1:kbHHub{chcHKnZk2nbJR1eHN8Lz;weYJu\WRwbnPibU5vdG1wbnnoModwfi9{NEe2O|g2OCd-MkS3Olc5PTB:L3G+
human Daudi cells MXrDfZRwfG:6aXRCpIF{e2G7 NIq3e|c4OiCq Mk\ZR5l1d3SxeHnjbZR6KGGpYXnud5QhcHWvYX6gSIF2\GliY3XscJMh[XO|ZYPz[YQh[XNiZ4Lve5RpKGmwaHnibZRqd25iYX\0[ZIhPzJiaILzJIJ6KFeVVD2xJIF{e2G7LDDHTVUxRTFzLkKg{txONg>? MmfVQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjR5Nke4OVAoRjJ2N{[3PFUxRC:jPh?=
human PC3 cells M4rXdGN6fG:2b4jpZ:Kh[XO|YYm= Ml3UO|IhcA>? MoX4R5l1d3SxeHnjbZR6KGGpYXnud5QhcHWvYX6gVGM{KGOnbHzzJIF{e2W|c3XkJIF{KGe{b4f0bEBqdmirYnn0bY9vKGGodHXyJFczKGi{czDifUBYW1RvMTDhd5NigSxiR1m1NF06NjRizszNMi=> NVL3XIJNRGFidHHy[4V1RSehYnzhcosoKGi{ZX[9K4h1fHC|Oj:vdJVjdWWmLn7jZokvdmyvLn7pbE5od3ZxMkS3Olc5PTBpPkK0O|Y4QDVyPD;hQi=>
human U2932 cells NFK5N|NEgXSxdH;4bYPDqGG|c3H5 NEn6UYg4OiCq M{\JXGN6fG:2b4jpZ4l1gSCjZ3HpcpN1KGi3bXHuJHUzQTN{IHPlcIx{KGG|c3Xzd4VlKGG|IHfyc5d1cCCrbnjpZol1cW:wIHHmeIVzKDd{IHjyd{BjgSCZU2StNUBie3OjeTygS2k2OD14Lkeg{txONg>? MYi8ZUB1[XKpZYS9K39jdGGwazegbJJm\j1paIT0dJM7Ny:ydXLt[YQvdmOkaT7ucI0vdmmqLnfvek8zPDd4N{i1NEc,OjR5Nke4OVA9N2F-
human HeLa cells NYnqZYk4TnWwY4Tpc44h[XO|YYm= NHvObmk4OiCq MY\Jcohq[mm2aX;uJI9nKEWcSEKgbY4hcHWvYX6gTIVN[SClZXzsd{Bie3Onc4Pl[EBieyC{ZXT1Z5Rqd25iaX6gTFNMOjevZUOgcIV3\Wy|IHnuZ5Vj[XSnZDDmc5IhPzJiaILzJIJ6KEWOSWPBJI1mfGixZDygTWM2OD1yLkK4JO69VS5? MkH1QIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjZzOEmwO|goRjJ4MUi5NFc5RC:jPh?=
human Pfeiffer cells NWrwN5JkS3m2b4TvfIlkyqCjc4PhfS=> NXfsc25VPzJiaB?= NGe5PGdEgXSxdH;4bYNqfHliYXfhbY5{fCCqdX3hckBR\mWrZn\ldkBk\WyuczDlfJBz\XO|aX7nJGVbUDJiQU[2O2chdXW2YX70JIF{e2W|c3XkJIF{KGe{b4f0bEBqdmirYnn0bY9vKGGodHXyJFczKGi{czDifUBYW1RvMTDhd5NigSxiR1m1NF0xNjF6IN88UU4> MV68ZUB1[XKpZYS9K39jdGGwazegbJJm\j1paIT0dJM7Ny:ydXLt[YQvdmOkaT7ucI0vdmmqLnfvek8zPDd4N{i1NEc,OjR5Nke4OVA9N2F-
infected SF9 cells NX3peVh1SmmwZHnu[{Bi\m[rbnn0fUB1dyCHWliyJEh2dmuwb4fuJI9zcWerbjmg[ZhxemW|c3XkJIlvKGKjY4Xsc5ZqenW|IHnu[oVkfGWmIGPGPUBk\WyuczDjc{1mgHC{ZYPzbY5oKFOXWkGyM2VGTC:UYlHwOFgh[2:vcHzlfEBie3Onc4Pl[EBieyCkaX7kbY5oKG:oZj3yZZRmKGG2IECuOEB2VSCrbnP1ZoF1\WRiZn;yJFIxKG2rboOgZpkhWS2WT1[gcYF{eyC|cHXjeJJwdWW2com= M17pT|xiKHSjcnfleF0oZ2KuYX7rK{BpemWoPTfoeJRxezpxL4D1Zo1m\C6wY3LpMo5tdS6waXiu[493NzJ5NUGyPFMyLz5{N{WxNlg{OTxxYU6=
A673 cells M2W1NpFJXFNib3[gdIVlcWG2cnnjJINidmOncjDj[YxtKGyrbnXzJJRwKGmmZX70bYZ6KG23bITpdIxmKG:ycH;yeJVvcXSrZYOg[o9zKGS{dXegdoVxfXKyb4Ppcoc7KFC{aX3hdpkhe2O{ZXXuJIZweiCDNkezJINmdGy| NGLLdmE9[SC2YYLn[ZQ:L1:kbHHub{chcHKnZk2nbJR1eHN8Lz;weYJu\WRwbnPibU5vdG1wbnnoModwfi9{OUSzOVE{QSd-Mkm0N|UyOzl:L3G+
DAOY cells Mn[1dWhVWyCxZjDw[YRq[XS{aXOgZ4Fv[2W{IHPlcIwhdGmwZYOgeI8hcWSnboTp[pkhdXWudHnwcIUhd3Cyb4L0eY5qfGmnczDmc5Ih\HK3ZzDy[ZB2enCxc3nu[|ohWHKrbXHyfUB{[3KnZX6g[o9zKESDT2mgZ4VtdHN? M4XmXlxiKHSjcnfleF0oZ2KuYX7rK{BpemWoPTfoeJRxezpxL4D1Zo1m\C6wY3LpMo5tdS6waXiu[493NzJ7NEO1NVM6Lz5{OUSzOVE{QTxxYU6=
Saos-2 cells NGPVNHByUFSVIH;mJJBm\GmjdILpZ{Bk[W6lZYKgZ4VtdCCuaX7ld{B1dyCrZHXueIlngSCvdXz0bZBt\SCxcIDvdpR2dmm2aXXzJIZweiCmcoXnJJJmeHW{cH;zbY5oQiCScnntZZJ6KHOlcnXlckBnd3JiU3Hvd{0zKGOnbHzz MlnuQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
BT-37 cells MmjrdWhVWyCxZjDw[YRq[XS{aXOgZ4Fv[2W{IHPlcIwhdGmwZYOgeI8hcWSnboTp[pkhdXWudHnwcIUhd3Cyb4L0eY5qfGmnczDmc5Ih\HK3ZzDy[ZB2enCxc3nu[|ohWHKrbXHyfUB{[3KnZX6g[o9zKEKWLUO3JINmdGy| NY\Oc40xRGFidHHy[4V1RSehYnzhcosoKGi{ZX[9K4h1fHC|Oj:vdJVjdWWmLn7jZokvdmyvLn7pbE5od3ZxMkm0N|UyOzlpPkK5OFM2OTN7PD;hQi=>
RD cells NXvaOm5CeUiWUzDv[kBx\WSrYYTybYMh[2GwY3XyJINmdGxibHnu[ZMhfG9iaXTlcpRq\nlibYXseIlxdGVib4Dwc5J1fW6rdHnld{Bnd3JiZIL1[{Bz\XC3coDvd4lv\zpiUILpcYFzgSC|Y4Ll[Y4h\m:{IGLEJINmdGy| MlnKQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
SK-N-SH cells M4O2VZFJXFNib3[gdIVlcWG2cnnjJINidmOncjDj[YxtKGyrbnXzJJRwKGmmZX70bYZ6KG23bITpdIxmKG:ycH;yeJVvcXSrZYOg[o9zKGS{dXegdoVxfXKyb4Ppcoc7KFC{aX3hdpkhe2O{ZXXuJIZweiCVSz3OMXNJKGOnbHzz MY[8ZUB1[XKpZYS9K39jdGGwazegbJJm\j1paIT0dJM7Ny:ydXLt[YQvdmOkaT7ucI0vdmmqLnfvek8zQTR|NUGzPUc,Ojl2M{WxN|k9N2F-
BT-12 cells NY\Yb5VseUiWUzDv[kBx\WSrYYTybYMh[2GwY3XyJINmdGxibHnu[ZMhfG9iaXTlcpRq\nlibYXseIlxdGVib4Dwc5J1fW6rdHnld{Bnd3JiZIL1[{Bz\XC3coDvd4lv\zpiUILpcYFzgSC|Y4Ll[Y4h\m:{IFLUMVEzKGOnbHzz MkPNQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
MG 63 (6-TG R) cells NF\MV3ZyUFSVIH;mJJBm\GmjdILpZ{Bk[W6lZYKgZ4VtdCCuaX7ld{B1dyCrZHXueIlngSCvdXz0bZBt\SCxcIDvdpR2dmm2aXXzJIZweiCmcoXnJJJmeHW{cH;zbY5oQiCScnntZZJ6KHOlcnXlckBnd3JiTVegOlMhMDZvVFegVkkh[2WubIO= NYHKVJozRGFidHHy[4V1RSehYnzhcosoKGi{ZX[9K4h1fHC|Oj:vdJVjdWWmLn7jZokvdmyvLn7pbE5od3ZxMkm0N|UyOzlpPkK5OFM2OTN7PD;hQi=>
NB1643 cells Ml\YdWhVWyCxZjDw[YRq[XS{aXOgZ4Fv[2W{IHPlcIwhdGmwZYOgeI8hcWSnboTp[pkhdXWudHnwcIUhd3Cyb4L0eY5qfGmnczDmc5Ih\HK3ZzDy[ZB2enCxc3nu[|ohWHKrbXHyfUB{[3KnZX6g[o9zKE6EMU[0N{Bk\Wyucx?= MnnLQIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
OHS-50 cells MVfxTHRUKG:oIIDl[IlifHKrYzDjZY5k\XJiY3XscEBtcW6nczD0c{Bq\GWwdHnmfUBufWy2aYDs[UBweHCxcoT1col1cWW|IH\vdkBlenWpIILldJVzeG:|aX7nPkBRemmvYYL5JJNkemWnbjDmc5IhV0iVLUWwJINmdGy| M3nJWFxiKHSjcnfleF0oZ2KuYX7rK{BpemWoPTfoeJRxezpxL4D1Zo1m\C6wY3LpMo5tdS6waXiu[493NzJ7NEO1NVM6Lz5{OUSzOVE{QTxxYU6=
Rh41 cells M1PSVJFJXFNib3[gdIVlcWG2cnnjJINidmOncjDj[YxtKGyrbnXzJJRwKGmmZX70bYZ6KG23bITpdIxmKG:ycH;yeJVvcXSrZYOg[o9zKGS{dXegdoVxfXKyb4Ppcoc7KFC{aX3hdpkhe2O{ZXXuJIZweiCUaESxJINmdGy| MXG8ZUB1[XKpZYS9K39jdGGwazegbJJm\j1paIT0dJM7Ny:ydXLt[YQvdmOkaT7ucI0vdmmqLnfvek8zQTR|NUGzPUc,Ojl2M{WxN|k9N2F-
SK-N-MC cells NUjnT|RveUiWUzDv[kBx\WSrYYTybYMh[2GwY3XyJINmdGxibHnu[ZMhfG9iaXTlcpRq\nlibYXseIlxdGVib4Dwc5J1fW6rdHnld{Bnd3JiZIL1[{Bz\XC3coDvd4lv\zpiUILpcYFzgSC|Y4Ll[Y4h\m:{IGPLMW4uVUNiY3XscJM> Mlq3QIEhfGG{Z3X0QUdg[myjbnunJIhz\WZ;J3j0eJB{Qi9xcIXicYVlNm6lYnmucoxuNm6raD7nc5YwOjl2M{WxN|koRjJ7NEO1NVM6RC:jPh?=
LAN-5 cells NGPQR4pyUFSVIH;mJJBm\GmjdILpZ{Bk[W6lZYKgZ4VtdCCuaX7ld{B1dyCrZHXueIlngSCvdXz0bZBt\SCxcIDvdpR2dmm2aXXzJIZweiCmcoXnJJJmeHW{cH;zbY5oQiCScnntZZJ6KHOlcnXlckBnd3JiTFHOMVUh[2WubIO= NVj1coFvRGFidHHy[4V1RSehYnzhcosoKGi{ZX[9K4h1fHC|Oj:vdJVjdWWmLn7jZokvdmyvLn7pbE5od3ZxMkm0N|UyOzlpPkK5OFM2OTN7PD;hQi=>
Assay
Methods Test Index PMID
Western blot H3K27Me3 / EZH2 ; XIAP / Survivin / MCL-1 / BID / BIM / BAX / BCL-xl/ Bcl-2 ; β-catenin / c-Myc / LEF1 / DVL2 / DVL3 / p-GSK3β 28418882 27926488
Immunofluorescence H3K27me3 25053977
Growth inhibition assay Cell viability ; Cell proliferation 28418882 29685965
In vivo In mice bearing KARPAS-422 and Pfeiffer xenografts, GSK126 (150 mg/kg/d, i.p.) decreases global H3K27me3, increases gene expression, and thus causes marked tumour regression. [1]

Protocol (from reference)

Kinase Assay:

[1]

  • EZH2 assay:

    The five-member PRC2 complex (Flag–EZH2, EED, SUZ12, AEBP2, RbAp48) containing either wild-type or mutant EZH2 is prepared. GSK126 is dissolved in DMSO and tested at concentrations of 0.6 nM to 300 nM with a final DMSO concentration of 2.5%. In contrast to wild-type EZH2 which prefers H3K27me0 as a substrate in vitro, EZH2 Y641 mutants prefer H3K27me2 and have little activity with H3K27me0 or H3K27me1. The A677G mutant is distinct from both the wild-type and Y641 mutant forms of EZH2 in that it efficiently methylates H3K27me0, H3K27me1, and H3K27me2; therefore, histone H3 peptides (residues 21–44; 10 μM final) with either K27me0 (wild type, A677G EZH2), K27me1 (A677G EZH2), or K27me2 (A677G, Y641N, Y641C, Y641H, Y641S and Y641F EZH2) are used as methyltransferase substrates. GSK126 is added to plates followed by addition of 6 nM EZH2 complex and peptide. As the potency of GSK126 is at or near the tight binding limit of an assay run at [SAM] = Km, IC50 values are measured at a high concentration of the competitive substrate SAM relative to its Km (7.5 μM SAM where the SAM Km is 0.3 μM). Under these conditions, the contribution from the enzyme concentration becomes relatively small and accurate estimates of Ki can be calculated. Reactions are initiated with [3H]-SAM, incubated for 30 min, quenched with the addition of 500-fold excess unlabelled SAM, and the methylated product peptide is captured on phosphocellulose filters according to the vendor supplied protocol for MSPH Multiscreen plates. Plates are read on a TopCount after adding 20 μL of Microscint-20 cocktail. Apparent Ki values are calculated using the Cheng–Prusoff relationship for a competitive inhibitor. IC50=Ki (1+[S]/Km)+[E]/2, where E is the enzyme and S is the substrate.

Cell Research:

[1]

  • Cell lines: 46 lymphoma cell lines
  • Concentrations: 0~10 μM
  • Incubation Time: 6 days
  • Method:

    The optimal cell seeding is determined empirically for all cell lines by examining the growth of a wide range of seeding densities in a 384-well format to identify conditions that permitted proliferation for 6 days. Cells are then plated at the optimal seeding density 24 h before treatment (in duplicate) with a 20-point two fold dilution series of GSK126 or 0.15% DMSO. Plates are incubated for 6 days at 37°C in 5% CO2. Cells are then lysed with CellTiter-Glo (CTG) and chemiluminescent signal is detected with a TECAN Safire2 microplate reader. In addition, an untreated plate of cells is harvested at the time of compound addition (T0) to quantify the starting number of cells. CTG values obtained after the 6 day treatment are expressed as a percent of the T0 value and plotted against compound concentration. Data are fit with a four-parameter equation to generate a concentration response curve and the concentration of GSK126 required to inhibit 50% of growth (growth IC50) is determined.

Animal Research:

[1]

  • Animal Models: Female beige SCID mice bearing Pfeiffer or KARPAS-422 tumors
  • Dosages: 150 mg/kg/day
  • Administration: i.p.

Solubility (25°C)

In vitro

DMSO 3 mg/mL warmed
(5.69 mM)
Water Insoluble
Ethanol Insoluble

In vivo

Add solvents to the product individually and in order
(Data is from Selleck tests instead of citations):
4% DMSO+corn oil
For best results, use promptly after mixing.

0.5mg/mL

Chemical Information

Molecular Weight 526.67
Formula

C31H38N6O2

CAS No. 1346574-57-9
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles CCC(C)N1C=C(C2=C(C=C(C=C21)C3=CN=C(C=C3)N4CCNCC4)C(=O)NCC5=C(C=C(NC5=O)C)C)C

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

mg/kg g μL

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO % % Tween 80 % ddH2O
%DMSO %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Molarity Calculator

Mass Concentration Volume Molecular Weight

Clinical Trial Information

NCT Number Recruitment Interventions Conditions Sponsor/Collaborators Start Date Phases
NCT02082977 Terminated Drug: GSK2816126 Cancer|Neoplasms GlaxoSmithKline April 24 2014 Phase 1

(data from https://clinicaltrials.gov, updated on 2022-01-17)

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.

Handling Instructions

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Frequently Asked Questions

Question 1:
Could you please suggest a vehicle for in vivo uses without oil?

Answer:
S7061 could be dissolved in 4% DMSO+30% PEG 300+ddH2O (0.5mg/ml).

Question 2:
Does this drug require an activation step to be functional? For example, an acidic or basic environment.

Answer:
GSK126 does not require an activation step to be functional.

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