Development of selective CBP/P300 benzoxazepine bromodomain inhibitors

CBP (CREB (cAMP responsive element binding protein) binding protein (CREBBP)) and P300 (adenovirus E1A-associated 300 kDa protein) are two closely related histone acetyltransferases (HATs) that play a key role in the regulation of gene transcription. Both proteins contain a bromodomain flanking the...

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Main Authors: Popp, T, Tallant, C, Rogers, C, Fedorov, O, Brennan, P, Müller, S, Knapp, S, Bracher, F
Format: Journal article
Jezik:English
Izdano: American Chemical Society 2016
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author Popp, T
Tallant, C
Rogers, C
Fedorov, O
Brennan, P
Müller, S
Knapp, S
Bracher, F
author_facet Popp, T
Tallant, C
Rogers, C
Fedorov, O
Brennan, P
Müller, S
Knapp, S
Bracher, F
author_sort Popp, T
collection OXFORD
description CBP (CREB (cAMP responsive element binding protein) binding protein (CREBBP)) and P300 (adenovirus E1A-associated 300 kDa protein) are two closely related histone acetyltransferases (HATs) that play a key role in the regulation of gene transcription. Both proteins contain a bromodomain flanking the HAT catalytic domain that is important for the targeting of CBP/P300 to chromatin and which offeres an opportunity for the development of protein-protein interaction inhibitors. Here we present the development of CBP/P300 bromodomain inhibitors with 2,3,4,5-tetrahydro-1,4-benzoxazepine backbone, an N-acetyl-lysine mimetic scaffold that led to the recent development of the chemical probe I-CBP112. We present comprehensive SAR of this inhibitor class as well as demonstration of cellular on target activity of the most potent and selective inhibitor TPOP146, which showed 134 nM affinity for CBP with excellent selectivity over other bromodomains.
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spelling oxford-uuid:44a065f6-7c68-4647-a989-220a9780b8b02022-03-26T15:02:47ZDevelopment of selective CBP/P300 benzoxazepine bromodomain inhibitorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:44a065f6-7c68-4647-a989-220a9780b8b0EnglishSymplectic Elements at OxfordAmerican Chemical Society2016Popp, TTallant, CRogers, CFedorov, OBrennan, PMüller, SKnapp, SBracher, FCBP (CREB (cAMP responsive element binding protein) binding protein (CREBBP)) and P300 (adenovirus E1A-associated 300 kDa protein) are two closely related histone acetyltransferases (HATs) that play a key role in the regulation of gene transcription. Both proteins contain a bromodomain flanking the HAT catalytic domain that is important for the targeting of CBP/P300 to chromatin and which offeres an opportunity for the development of protein-protein interaction inhibitors. Here we present the development of CBP/P300 bromodomain inhibitors with 2,3,4,5-tetrahydro-1,4-benzoxazepine backbone, an N-acetyl-lysine mimetic scaffold that led to the recent development of the chemical probe I-CBP112. We present comprehensive SAR of this inhibitor class as well as demonstration of cellular on target activity of the most potent and selective inhibitor TPOP146, which showed 134 nM affinity for CBP with excellent selectivity over other bromodomains.
spellingShingle Popp, T
Tallant, C
Rogers, C
Fedorov, O
Brennan, P
Müller, S
Knapp, S
Bracher, F
Development of selective CBP/P300 benzoxazepine bromodomain inhibitors
title Development of selective CBP/P300 benzoxazepine bromodomain inhibitors
title_full Development of selective CBP/P300 benzoxazepine bromodomain inhibitors
title_fullStr Development of selective CBP/P300 benzoxazepine bromodomain inhibitors
title_full_unstemmed Development of selective CBP/P300 benzoxazepine bromodomain inhibitors
title_short Development of selective CBP/P300 benzoxazepine bromodomain inhibitors
title_sort development of selective cbp p300 benzoxazepine bromodomain inhibitors
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AT fedorovo developmentofselectivecbpp300benzoxazepinebromodomaininhibitors
AT brennanp developmentofselectivecbpp300benzoxazepinebromodomaininhibitors
AT mullers developmentofselectivecbpp300benzoxazepinebromodomaininhibitors
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AT bracherf developmentofselectivecbpp300benzoxazepinebromodomaininhibitors