Hydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells
NAA10 is a major <i>N</i>-terminal acetyltransferase (NAT) that catalyzes the cotranslational <i>N</i>-terminal (Nt-) acetylation of 40% of the human proteome. Several reports of lysine acetyltransferase (KAT) activity by NAA10 exist, but others have not been able to find any...
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oai:doaj.org-article:21747304c7b14645a8581653b8e789982021-11-11T17:14:57ZHydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells10.3390/ijms2221118051422-00671661-6596https://doaj.org/article/21747304c7b14645a8581653b8e789982021-10-01T00:00:00Zhttps://www.mdpi.com/1422-0067/22/21/11805https://doaj.org/toc/1661-6596https://doaj.org/toc/1422-0067NAA10 is a major <i>N</i>-terminal acetyltransferase (NAT) that catalyzes the cotranslational <i>N</i>-terminal (Nt-) acetylation of 40% of the human proteome. Several reports of lysine acetyltransferase (KAT) activity by NAA10 exist, but others have not been able to find any NAA10-derived KAT activity, the latter of which is supported by structural studies. The KAT activity of NAA10 towards hypoxia-inducible factor 1α (HIF-1α) was recently found to depend on the hydroxylation at Trp38 of NAA10 by factor inhibiting HIF-1α (FIH). In contrast, we could not detect hydroxylation of Trp38 of NAA10 in several human cell lines and found no evidence that NAA10 interacts with or is regulated by FIH. Our data suggest that NAA10 Trp38 hydroxylation is not a switch in human cells and that it alters its catalytic activity from a NAT to a KAT.Rasmus ReeKaroline KrogstadNina McTiernanMagnus E. JakobssonThomas ArnesenMDPI AGarticleprotein hydroxylationprotein acetylationproteomicsPOST-translational modification<i>N</i>-terminal acetyltransferaseNAA10Biology (General)QH301-705.5ChemistryQD1-999ENInternational Journal of Molecular Sciences, Vol 22, Iss 11805, p 11805 (2021) |
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DOAJ |
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EN |
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protein hydroxylation protein acetylation proteomics POST-translational modification <i>N</i>-terminal acetyltransferase NAA10 Biology (General) QH301-705.5 Chemistry QD1-999 |
spellingShingle |
protein hydroxylation protein acetylation proteomics POST-translational modification <i>N</i>-terminal acetyltransferase NAA10 Biology (General) QH301-705.5 Chemistry QD1-999 Rasmus Ree Karoline Krogstad Nina McTiernan Magnus E. Jakobsson Thomas Arnesen Hydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells |
description |
NAA10 is a major <i>N</i>-terminal acetyltransferase (NAT) that catalyzes the cotranslational <i>N</i>-terminal (Nt-) acetylation of 40% of the human proteome. Several reports of lysine acetyltransferase (KAT) activity by NAA10 exist, but others have not been able to find any NAA10-derived KAT activity, the latter of which is supported by structural studies. The KAT activity of NAA10 towards hypoxia-inducible factor 1α (HIF-1α) was recently found to depend on the hydroxylation at Trp38 of NAA10 by factor inhibiting HIF-1α (FIH). In contrast, we could not detect hydroxylation of Trp38 of NAA10 in several human cell lines and found no evidence that NAA10 interacts with or is regulated by FIH. Our data suggest that NAA10 Trp38 hydroxylation is not a switch in human cells and that it alters its catalytic activity from a NAT to a KAT. |
format |
article |
author |
Rasmus Ree Karoline Krogstad Nina McTiernan Magnus E. Jakobsson Thomas Arnesen |
author_facet |
Rasmus Ree Karoline Krogstad Nina McTiernan Magnus E. Jakobsson Thomas Arnesen |
author_sort |
Rasmus Ree |
title |
Hydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells |
title_short |
Hydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells |
title_full |
Hydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells |
title_fullStr |
Hydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells |
title_full_unstemmed |
Hydroxylation of the Acetyltransferase NAA10 Trp38 Is Not an Enzyme-Switch in Human Cells |
title_sort |
hydroxylation of the acetyltransferase naa10 trp38 is not an enzyme-switch in human cells |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/21747304c7b14645a8581653b8e78998 |
work_keys_str_mv |
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