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MOF AND Kat8 AND Myst1

B N Sheikh, W Bechtel-Walz, J Lucci, O Karpiuk, I Hild, B Hartleben, J Vornweg, M Helmstädter, A H Sahyoun, V Bhardwaj, T Stehle, S Diehl, O Kretz, A K Voss, T Thomas, T Manke, T B Huber, A Akhtar
MOF (MYST1, KAT8) is the major H4K16 lysine acetyltransferase (KAT) in Drosophila and mammals and is essential for embryonic development. However, little is known regarding the role of MOF in specific cell lineages. Here we analyze the differential role of MOF in proliferating and terminally differentiated tissues at steady state and under stress conditions. In proliferating cells, MOF directly binds and maintains the expression of genes required for cell cycle progression. In contrast, MOF is dispensable for terminally differentiated, postmitotic glomerular podocytes under physiological conditions...
May 2016: Oncogene
Hua Yuan, Dorine Rossetto, Hestia Mellert, Weiwei Dang, Madhusudan Srinivasan, Jamel Johnson, Santosh Hodawadekar, Emily C Ding, Kaye Speicher, Nebiyu Abshiru, Rocco Perry, Jiang Wu, Chao Yang, Y George Zheng, David W Speicher, Pierre Thibault, Alain Verreault, F Bradley Johnson, Shelley L Berger, Rolf Sternglanz, Steven B McMahon, Jacques Côté, Ronen Marmorstein
The MYST protein lysine acetyltransferases are evolutionarily conserved throughout eukaryotes and acetylate proteins to regulate diverse biological processes including gene regulation, DNA repair, cell-cycle regulation, stem cell homeostasis and development. Here, we demonstrate that MYST protein acetyltransferase activity requires active site lysine autoacetylation. The X-ray crystal structures of yeast Esa1 (yEsa1/KAT5) bound to a bisubstrate H4K16CoA inhibitor and human MOF (hMOF/KAT8/MYST1) reveal that they are autoacetylated at a strictly conserved lysine residue in MYST proteins (yEsa1-K262 and hMOF-K274) in the enzyme active site...
January 4, 2012: EMBO Journal
Tim Thomas, Mathew P Dixon, Andrew J Kueh, Anne K Voss
Acetylation of histone tails is a hallmark of transcriptionally active chromatin. Mof (males absent on the first; also called MYST1 or KAT8) is a member of the MYST family of histone acetyltransferases and was originally discovered as an essential component of the X chromosome dosage compensation system in Drosophila. In order to examine the role of Mof in mammals in vivo, we generated mice carrying a null mutation of the Mof gene. All Mof-deficient embryos fail to develop beyond the expanded blastocyst stage and die at implantation in vivo...
August 2008: Molecular and Cellular Biology
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