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Current Protein & Peptide Science

Editor-in-Chief

ISSN (Print): 1389-2037
ISSN (Online): 1875-5550

Transcriptional Mechanisms by the Coregulator MAML1

Author(s): M. Saint Just Ribeiro and A. E. Wallberg

Volume 10, Issue 6, 2009

Page: [570 - 576] Pages: 7

DOI: 10.2174/138920309789630543

Price: $65

Abstract

The Mastermind-like (MAML) proteins are transcriptional coactivators for Notch signaling, an evolutionarily conserved pathway that plays several key roles in development and in human disease. The MAML family contains MAML1, MAML2, and MAML3. More recently, MAML1 has been shown to function as a coactivator for the tumor suppressor p53, the MADS box transcription enhancer factor (MEF) 2C, and β-catenin. In addition, MAML1 has been reported to interact with the histone acetyltransferase p300, and this interaction increases p300 activity. Furthermore, MAML1 binds to CDK8, which is a subunit of the Mediator complex. The function of MAML1 as a coactivator for diverse activators, and MAML1 interaction with broadly used coactivators, suggests that MAML1 might be a key molecule that connects various signaling pathways to regulate cellular processes in normal cells and in human disease.


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