The Acyl-CoA Specificity of Human Lysine Acetyltransferase KAT2A.

The Acyl-CoA Specificity of Human Lysine Acetyltransferase KAT2A.
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DOI:
10.1021/acs.biochem.2c00308
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发表时间:
2022-09-06
期刊:
影响因子:
2.9
通讯作者:
Lin, Hening
Lin, Hening
中科院分区:
生物学3区
文献类型:
--
作者:
Anmangandla, Ananya;Ren, Yuxiang;Fu, Qin;Zhang, Sheng;Lin, Hening

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Protein post-translational modifications serve to regulate a broad range of cellular functions including signal transduction, transcription, and metabolism. Protein lysine residues undergo many post-translational acylations and are regulated by a range of enzymes, such as histone acetyl transferases (HATs) and histone deacetylases (HDACs). KAT2A, well characterized as a lysine acetyltransferase for both histone and nonhistone substrates, has been reported to tolerate additional acyl-CoA substrates, such as succinyl-CoA, and shows nonacetyl transferase activity in specific biological contexts. In this work, we investigate the acyl-CoA substrate preference of KAT2A and attempt to determine whether and to what extent additional acyl-CoA substrates may be utilized by KAT2A in a cellular context. We show that while KAT2A can bind and utilize malonyl-CoA, its activity with succinyl-CoA or glutaryl-CoA is very weak, and acetylation is still the most efficient activity for KAT2A in vitro and in cells.
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