Chemical Probes logo
AT1 | Degrader (PROTAC) of BRD4
RATINGS:
Cellular Use: (3 reviews)

In Model Organisms: (1 reviews)
Probe Summary
Selectivity
Potency
In Vivo
Control Compounds
Chemical Information
References
Vendors
Download

Probe Summary

Targets Biochemical/Biophysical Potency Cellular Potency
BRD4
  • Kd:75 nM BD1, 45 nM BD2
  • DC50:100 nM
Degrader (PROTAC)
100-1000 nM

Selectivity

In Vitro Selectivity Assessment

Potency: IC50

Selectivity Assessment Description:
Kinase off-target screening results. AT1 was screened at 1 μM concentration against a panel of 50 ...
In Cell Selectivity Assessment

Potency: DC50 - Brd2, Brd3

Potency Assay Off-Target:
Western blot (DC50 BRd2 and BRd3 > 3 microM) DC50 refers to the half maximal degradation concentrati ...
Selectivity Assessment Description:
Unbiased and quantitative isobaric tagging (TMT) mass spectrometry proteomics confirmed Brd4 as t ...

Potency
Cellular
In Vitro

BRD4

Mode of Action: Degrader (PROTAC)

Structure-Activity-Relationship data available? No

DOI Reference: 10.1038/nchembio.2329

Negative Control Compounds

cis-AT1

Orthogonal Probes def

MZ1
dBET1, ARV-825
MS436

Chemical Information

Molecular Formula C48H58ClN9O5S3
SMILEs CC(=O)N[C@H](C(=O)N1C[C@H](O)C[C@H]1C(=O)NCc1ccc(-c2scnc2C)cc1)C(C)(C)SCCCCCCNC(=O)C[C@@H]1N=C(c2ccc(Cl)cc2)c2c(sc(C)c2C)-n2c(C)nnc21
InChI InChI=1S/C48H58ClN9O5S3/c1-27-29(3)66-47-40(27)41(33-16-18-35(49)19-17-33)54-37(44-56-55-30(4)58(44)47)23-39(61)50-20-10-8-9-11-21-65-48(6,7)43(53-31(5)59)46(63)57-25-36(60)22-38(57)45(62)51-24-32-12-14-34(15-13-32)42-28(2)52-26-64-42/h12-19,26,36-38,43,60H,8-11,20-25H2,1-7H3,(H,50,61)(H,51,62)(H,53,59)/t36-,37+,38+,43-/m1/s1
Molecular weight 971.34 Da
AlogP 7.592880000000009
HBond acceptors 14
HBond donors 4
Atoms 124

References

Publications

Cross References

canSARChEMBL

Vendors

Note: This is not an exhaustive list and does not indicate endorsement by the portal.

Expert Reviews

by SERP
(on 15 Apr 2020)
Cellular Use Rating
(The reviewer did not leave any public comments)
by SERP
(on 15 May 2020)
Cellular Use Rating
In Model Organisms
AT1 is a very good PROTAC ligand for targeted degradation of BRD4. Improved from previous PROTAC MZ1, AT1 has superior selectivity towards BRD4 in the BET family while retaining its potency (DC50 =...
by SERP
(on 14 Dec 2020)
Cellular Use Rating
AT-1 is the first selective BRD4 PROTAC with in-family selectivity over BRD2 and BRD3. We have used it successfully in comparative studies with pan-BET PROTACs in different cell lines. Based on our...
Note: The Chemical Probes Portal only endorses compounds as chemical probes for use as specific and selective modulators of the proposed target if they receive three or more (3-4) stars. Read more about our evaluation criteria