User:Jordan Finch/Sandbox 1

DOI 10.1002/ijch.201300024</ref> or to the article describing Jmol ^[1] to the rescue.

Introduction

Histone background

HAT1 Background

Figure 1

Hat1/Hat2 Complex Structure

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Mechanism

Of the five classes of HAT enzymes, the catalytic mechanism for HAT1 and Rtt109 remains unclear. A structural overlay of HAT1 and Gcn5, a more well-known and understood HAT enzyme, found a conserved glutamate residue in the active site of both molecules. It was found that mutation at that active site glutamate residue greatly alters the catalytic ability of HAT1 and has been proven to be structurally important. ^[2] Using this information and structurl information regarding the proximity of potentially catalytic residues, the most plausible mechanism for histone acetylation involves the following relevant residues and cofactors .

Application

References

1. Li, Y. et. al. Hat2p recognizes the histone H3 tail to specify the acetylation of the newly synthesized H3/H4 heterodimer by the Hat1p/Hat2p complex.(2014). Genes Dev.28:1217-1227. DOI:10.1101/gad.240531.114

1. ↑ Herraez A. Biomolecules in the computer: Jmol to the rescue. Biochem Mol Biol Educ. 2006 Jul;34(4):255-61. doi: 10.1002/bmb.2006.494034042644. PMID:21638687 doi:10.1002/bmb.2006.494034042644
2. ↑ Li Y, Zhang L, Liu T, Chai C, Fang Q, Wu H, Agudelo Garcia PA, Han Z, Zong S, Yu Y, Zhang X, Parthun MR, Chai J, Xu RM, Yang M. Hat2p recognizes the histone H3 tail to specify the acetylation of the newly synthesized H3/H4 heterodimer by the Hat1p/Hat2p complex. Genes Dev. 2014 Jun 1;28(11):1217-27. doi: 10.1101/gad.240531.114. Epub 2014 May , 16. PMID:24835250 doi:http://dx.doi.org/10.1101/gad.240531.114

Student Contributors

• Caitlin Gaich
• Jordan Finch
• Morgan Buckley