TY - JOUR
T1 - Mettl17, a regulator of mitochondrial ribosomal RNA modifications, is required for the translation of mitochondrial coding genes
AU - Shi, Zhennan
AU - Xu, Siyuan
AU - Xing, Shenghui
AU - Yao, Ke
AU - Zhang, Lei
AU - Xue, Luxi
AU - Zhou, Peng
AU - Wang, Ming
AU - Yan, Guoquan
AU - Yang, Pengyuan
AU - Liu, Jing
AU - Hu, Zeping
AU - Lan, Fei
N1 - Funding Information:
The authors thank Dr. Yang Yu (Institute of Biophysics, Chinese Academy of Sciences) and Dr. Ye Tian (Institute of Genetics and Developmental Biology, Chines Academy of Sciences) for instructive discussion. F.L. is funded by the Ministry of Science and Technology of China (2016YFA0101800), Shanghai Municipal Science and Technology Major Project (2017SHZDZX01), and National Science Foundation of China (81773014). Z.H. is supported by grants from Tsinghua University (53332200517) and the National Science and Technology Major Project for Significant New Drugs Development (2017ZX09304015). Z.H. is the recipient of a Bayer Investigator Award. The authors declare no conflicts of interest.
Funding Information:
The authors thank Dr. Yang Yu (Institute of Biophysics, Chinese Academy of Sciences) and Dr. Ye Tian (Institute of Genetics and Developmental Biology, Chines Academy of Sciences) for instructive discussion. F.L. is funded by the Ministry of Science and Technology of China (2016YFA0101800), Shanghai Municipal Science and Technology Major Project (2017SHZDZX01), and National Science Foundation of China (81773014). Z.H. is supported by grants from Tsinghua University (53332200517) and the National Science and Technology Major Project for Significant New Drugs Development (2017ZX09304015). Z.H. is the recipient of a Bayer Investigator Award. The authors declare no conflicts of interest.
Publisher Copyright:
© FASEB
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Embryonic stem cells (ESCs) are pluripotent stem cells with the ability to self-renew and to differentiate into any cell types of the 3 germ layers. Recent studies have demonstrated that there is a strong connection between mitochondrial function and pluripotency. Here, we report that methyltransferase like (Mettl) 17, identified from the clustered regularly interspaced short palindromic repeats knockout screen, is required for proper differentiation of mouse embryonic stem cells (mESCs). Mettl17 is located in mitochondria through its N-terminal targeting sequence and specifically interacts with 12S mitochondrial ribosomal RNA (mt-rRNA) as well as small subunits of mitochondrial ribosome (MSSUs). Loss of Mettl17 affects the stability of both 12S mt-rRNA and its associated proteins of MSSUs. We further showed that Mettl17 is an S-adenosyl methionine (SAM)-binding protein and regulates mitochondrial ribosome function in a SAM-binding–dependent manner. Loss of Mettl17 leads to around 70% reduction of m4C840 and 50% reduction of m5C842 of 12S mt-rRNA, revealing the first regulator of the m4C840 and indicating a crosstalk between the 2 nearby modifications. The defects of mitochondrial ribosome caused by deletion of Mettl17 lead to the impaired translation of mitochondrial protein-coding genes, resulting in significant changes in mitochondrial oxidative phosphorylation and cellular metabolome, which are important for mESC pluripotency.—Shi, Z., Xu, S., Xing, S., Yao, K., Zhang, L., Xue, L., Zhou, P., Wang, M., Yan, G., Yang, P., Liu, J., Hu, Z., Lan, F. Mettl17 a regulator of mitochondrial ribosomal RNA modifications is required for the translation of mitochondrial coding genes. FASEB J. 33, 13040–13050 (2019). www.fasebj.org.
AB - Embryonic stem cells (ESCs) are pluripotent stem cells with the ability to self-renew and to differentiate into any cell types of the 3 germ layers. Recent studies have demonstrated that there is a strong connection between mitochondrial function and pluripotency. Here, we report that methyltransferase like (Mettl) 17, identified from the clustered regularly interspaced short palindromic repeats knockout screen, is required for proper differentiation of mouse embryonic stem cells (mESCs). Mettl17 is located in mitochondria through its N-terminal targeting sequence and specifically interacts with 12S mitochondrial ribosomal RNA (mt-rRNA) as well as small subunits of mitochondrial ribosome (MSSUs). Loss of Mettl17 affects the stability of both 12S mt-rRNA and its associated proteins of MSSUs. We further showed that Mettl17 is an S-adenosyl methionine (SAM)-binding protein and regulates mitochondrial ribosome function in a SAM-binding–dependent manner. Loss of Mettl17 leads to around 70% reduction of m4C840 and 50% reduction of m5C842 of 12S mt-rRNA, revealing the first regulator of the m4C840 and indicating a crosstalk between the 2 nearby modifications. The defects of mitochondrial ribosome caused by deletion of Mettl17 lead to the impaired translation of mitochondrial protein-coding genes, resulting in significant changes in mitochondrial oxidative phosphorylation and cellular metabolome, which are important for mESC pluripotency.—Shi, Z., Xu, S., Xing, S., Yao, K., Zhang, L., Xue, L., Zhou, P., Wang, M., Yan, G., Yang, P., Liu, J., Hu, Z., Lan, F. Mettl17 a regulator of mitochondrial ribosomal RNA modifications is required for the translation of mitochondrial coding genes. FASEB J. 33, 13040–13050 (2019). www.fasebj.org.
KW - 12S rRNA
KW - oxidative phosphorylation
KW - rRNA modification
UR - http://www.scopus.com/inward/record.url?scp=85074377353&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074377353&partnerID=8YFLogxK
U2 - 10.1096/fj.201901331R
DO - 10.1096/fj.201901331R
M3 - Article
C2 - 31487196
AN - SCOPUS:85074377353
SN - 0892-6638
VL - 33
SP - 13040
EP - 13050
JO - FASEB Journal
JF - FASEB Journal
IS - 11
ER -