A threonyl-tRNA synthetase-like protein has tRNA aminoacylation and editing activities.
A threonyl-tRNA synthetase-like protein has tRNA aminoacylation and editing activities.
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苏氨酰-tRNA 合成酶样蛋白具有 tRNA 氨酰化和编辑活性
DOI:
10.1093/nar/gky211
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发表时间:
2018-04-20
影响因子:
14.9
通讯作者:
Wang ED
中科院分区:
文献类型:
--
作者:
Chen Y;Ruan ZR;Wang Y;Huang Q;Xue MQ;Zhou XL;Wang ED
Abstract TARS and TARS2 encode cytoplasmic and mitochondrial threonyl-tRNA synthetases (ThrRSs) in mammals, respectively. Interestingly, in higher eukaryotes, a third gene, TARSL2, encodes a ThrRS-like protein (ThrRS-L), which is highly homologous to cytoplasmic ThrRS but with a different N-terminal extension (N-extension). Whether ThrRS-L has canonical functions is unknown. In this work, we studied the organ expression pattern, cellular localization, canonical aminoacylation and editing activities of mouse ThrRS-L (mThrRS-L). Tarsl2 is ubiquitously but unevenly expressed in mouse tissues. Different from mouse cytoplasmic ThrRS (mThrRS), mThrRS-L is located in both the cytoplasm and nucleus; the nuclear distribution is mediated via a nuclear localization sequence at its C-terminus. Native mThrRS-L enriched from HEK293T cells was active in aminoacylation and editing. To investigate the in vitro catalytic properties of mThrRS-L accurately, we replaced the N-extension of mThrRS-L with that of mThrRS. The chimeric protein (mThrRS-L-NT) has amino acid activation, aminoacylation and editing activities. We compared the activities and cross-species tRNA recognition between mThrRS-L-NT and mThrRS. Despite having a similar aminoacylation activity, mThrRS-L-NT and mThrRS exhibit differences in tRNA recognition and editing capacity. Our results provided the first analysis of the aminoacylation and editing activities of ThrRS-L, and improved our understanding of Tarsl2.
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影响因子:
3.7
作者:
Telonis AG;Loher P;Kirino Y;Rigoutsos I
通讯作者:
Rigoutsos I
影响因子:
3.7
作者:
Kim K;Park SJ;Na S;Kim JS;Choi H;Kim YK;Paek E;Lee C
通讯作者:
Lee C
DOI:
10.1007/bf02880055
发表时间:
1999-04-01
期刊:
SCIENCE IN CHINA SERIES C-LIFE SCIENCES
影响因子:
--
作者:
Li, Y;Chen, JF;Wang, YL
通讯作者:
Wang, YL
影响因子:
4.8
作者:
Hati, Sanchita;Ziervogel, Brigitte;Musier-Forsyth, Karin
通讯作者:
Musier-Forsyth, Karin
影响因子:
14.9
作者:
Fang ZP;Wang M;Ruan ZR;Tan M;Liu RJ;Zhou M;Zhou XL;Wang ED
通讯作者:
Wang ED