Sandbox ggc16
(2PQ8) MYST Histone Acetyltransferase(2PQ8) MYST Histone Acetyltransferase
MYST Histone Acetyltransferases (HAT), a diverse family of proteins responsible for a variety of functions in eukaryotes from yeast to humans[1]. These particular histone acetyltransferases are part of the MYST family because of their structure which includes and . You may include any references to papers as in: the use of JSmol in Proteopedia [2] or to the article describing Jmol [3] to the rescue.,[4] FunctionHighly conserved in eukaryotes, their key roles in post-translation modification of histones. Profound effect on chromatin structure in eukaryotes. Composed of an Acetyl-CoA binding motif and a zinc finger. RelevanceThese enzymes acetylate lysine amino acids of histone by transferring the acetyl group of acetyl CoA to form N-acetyllysine. While the DNA coiled around histones and the activity of histone acetyltransferase is able to turn genes on or off, along with influencing gene expression by acetylating non-histone proteins[5]. DiseaseHATs activate the residues of p53 by acetylation which leads to the elevation of p53 DNA binding or loss of its transcriptional activity[6]. If there’s any type of mutation where acetylation occurs of the p53 residues the functionality is hindered leading to the growth of tumors/cancers.
Structural highlightsThe binding site for this structure , which is involved in the transfer of an acetyl group from acetyl-coA to the amine group of a lysine residue. The finger region of this structure is involved in the acetyltransferase activity and chromatin binding of the histone.
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ReferencesReferences
- ↑ Chen CJ, Deng Z, Kim AY, Blobel GA, Lieberman PM. Stimulation of CREB binding protein nucleosomal histone acetyltransferase activity by a class of transcriptional activators. Mol Cell Biol. 2001 Jan;21(2):476-87. doi: 10.1128/MCB.21.2.476-487.2001. PMID:11134336 doi:http://dx.doi.org/10.1128/MCB.21.2.476-487.2001
- ↑ McCullough CE, Marmorstein R. Molecular Basis for Histone Acetyltransferase Regulation by Binding Partners, Associated Domains, and Autoacetylation. ACS Chem Biol. 2016 Mar 18;11(3):632-42. doi: 10.1021/acschembio.5b00841. Epub, 2015 Dec 2. PMID:26555232 doi:http://dx.doi.org/10.1021/acschembio.5b00841
- ↑ Chen CJ, Deng Z, Kim AY, Blobel GA, Lieberman PM. Stimulation of CREB binding protein nucleosomal histone acetyltransferase activity by a class of transcriptional activators. Mol Cell Biol. 2001 Jan;21(2):476-87. doi: 10.1128/MCB.21.2.476-487.2001. PMID:11134336 doi:http://dx.doi.org/10.1128/MCB.21.2.476-487.2001
- ↑ Cheung P, Allis CD, Sassone-Corsi P. Signaling to chromatin through histone modifications. Cell. 2000 Oct 13;103(2):263-71. doi: 10.1016/s0092-8674(00)00118-5. PMID:11057899 doi:http://dx.doi.org/10.1016/s0092-8674(00)00118-5
- ↑ Grant PA, Berger SL. Histone acetyltransferase complexes. Semin Cell Dev Biol. 1999 Apr;10(2):169-77. doi: 10.1006/scdb.1999.0298. PMID:10441070 doi:http://dx.doi.org/10.1006/scdb.1999.0298
- ↑ Grant PA, Berger SL. Histone acetyltransferase complexes. Semin Cell Dev Biol. 1999 Apr;10(2):169-77. doi: 10.1006/scdb.1999.0298. PMID:10441070 doi:http://dx.doi.org/10.1006/scdb.1999.0298