Title : Leucine-sensing mechanism of leucyl-tRNA synthetase 1 for mTORC1 activation.

Pub. Date : 2021 Apr 27

PMID : 33910001






4 Functional Relationships(s)
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1 Leucine-sensing mechanism of leucyl-tRNA synthetase 1 for mTORC1 activation. Leucine CREB regulated transcription coactivator 1 Mus musculus
2 Leucyl-tRNA synthetase 1 (LARS1) mediates activation of leucine-dependent mechanistic target of rapamycin complex 1 (mTORC1) as well as ligation of leucine to its cognate tRNAs, yet its mechanism of leucine sensing is poorly understood. Leucine CREB regulated transcription coactivator 1 Mus musculus
3 We determine different crystal structures of LARS1 complexed with leucine, ATP, and a reaction intermediate analog, leucyl-sulfamoyl-adenylate (Leu-AMS), and find two distinct functional states of LARS1 for mTORC1 activation. Leucine CREB regulated transcription coactivator 1 Mus musculus
4 Thus, this work unveils the structural basis for leucine-dependent long-range communication between the catalytic and RagD-binding domains of LARS1 for mTORC1 activation. Leucine CREB regulated transcription coactivator 1 Mus musculus