TY - JOUR
T1 - The methyltransferase METTL9 mediates pervasive 1-methylhistidine modification in mammalian proteomes
AU - Davydova, Erna
AU - Shimazu, Tadahiro
AU - Schuhmacher, Maren Kirstin
AU - Jakobsson, Magnus E.
AU - Willemen, Hanneke L.D.M.
AU - Liu, Tongri
AU - Moen, Anders
AU - Ho, Angela Y.Y.
AU - Małecki, Jędrzej
AU - Schroer, Lisa
AU - Pinto, Rita
AU - Suzuki, Takehiro
AU - Grønsberg, Ida A.
AU - Sohtome, Yoshihiro
AU - Akakabe, Mai
AU - Weirich, Sara
AU - Kikuchi, Masaki
AU - Olsen, Jesper V.
AU - Dohmae, Naoshi
AU - Umehara, Takashi
AU - Sodeoka, Mikiko
AU - Siino, Valentina
AU - McDonough, Michael A.
AU - Eijkelkamp, Niels
AU - Schofield, Christopher J.
AU - Jeltsch, Albert
AU - Shinkai, Yoichi
AU - Falnes, Pål
PY - 2021
Y1 - 2021
N2 - Post-translational methylation plays a crucial role in regulating and optimizing protein function. Protein histidine methylation, occurring as the two isomers 1- and 3-methylhistidine (1MH and 3MH), was first reported five decades ago, but remains largely unexplored. Here we report that METTL9 is a broad-specificity methyltransferase that mediates the formation of the majority of 1MH present in mouse and human proteomes. METTL9-catalyzed methylation requires a His-x-His (HxH) motif, where “x” is preferably a small amino acid, allowing METTL9 to methylate a number of HxH-containing proteins, including the immunomodulatory protein S100A9 and the NDUFB3 subunit of mitochondrial respiratory Complex I. Notably, METTL9-mediated methylation enhances respiration via Complex I, and the presence of 1MH in an HxH-containing peptide reduced its zinc binding affinity. Our results establish METTL9-mediated 1MH as a pervasive protein modification, thus setting the stage for further functional studies on protein histidine methylation.
AB - Post-translational methylation plays a crucial role in regulating and optimizing protein function. Protein histidine methylation, occurring as the two isomers 1- and 3-methylhistidine (1MH and 3MH), was first reported five decades ago, but remains largely unexplored. Here we report that METTL9 is a broad-specificity methyltransferase that mediates the formation of the majority of 1MH present in mouse and human proteomes. METTL9-catalyzed methylation requires a His-x-His (HxH) motif, where “x” is preferably a small amino acid, allowing METTL9 to methylate a number of HxH-containing proteins, including the immunomodulatory protein S100A9 and the NDUFB3 subunit of mitochondrial respiratory Complex I. Notably, METTL9-mediated methylation enhances respiration via Complex I, and the presence of 1MH in an HxH-containing peptide reduced its zinc binding affinity. Our results establish METTL9-mediated 1MH as a pervasive protein modification, thus setting the stage for further functional studies on protein histidine methylation.
U2 - 10.1038/s41467-020-20670-7
DO - 10.1038/s41467-020-20670-7
M3 - Article
C2 - 33563959
AN - SCOPUS:85100703102
SN - 2041-1723
VL - 12
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 891
ER -