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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Autores principales: Rasmus Ree, Karoline Krogstad, Nina McTiernan, Magnus E. Jakobsson, Thomas Arnesen
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/21747304c7b14645a8581653b8e78998
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spelling 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)
institution DOAJ
collection DOAJ
language EN
topic 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 AT rasmusree hydroxylationoftheacetyltransferasenaa10trp38isnotanenzymeswitchinhumancells
AT karolinekrogstad hydroxylationoftheacetyltransferasenaa10trp38isnotanenzymeswitchinhumancells
AT ninamctiernan hydroxylationoftheacetyltransferasenaa10trp38isnotanenzymeswitchinhumancells
AT magnusejakobsson hydroxylationoftheacetyltransferasenaa10trp38isnotanenzymeswitchinhumancells
AT thomasarnesen hydroxylationoftheacetyltransferasenaa10trp38isnotanenzymeswitchinhumancells
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