scholarly journals Crystallization and preliminary X-ray analysis of a native human tRNA synthetase whose allelic variants are associated with Charcot–Marie–Tooth disease

Author(s):  
Wei Xie ◽  
Paul Schimmel ◽  
Xiang-Lei Yang
2014 ◽  
Vol 54 (11) ◽  
pp. 911-915 ◽  
Author(s):  
Nobuko Kawakami ◽  
Kenichi Komatsu ◽  
Hirofumi Yamashita ◽  
Kengo Uemura ◽  
Nobuyuki Oka ◽  
...  

2003 ◽  
Vol 72 (5) ◽  
pp. 1293-1299 ◽  
Author(s):  
Anthony Antonellis ◽  
Rachel E. Ellsworth ◽  
Nyamkhishig Sambuughin ◽  
Imke Puls ◽  
Annette Abel ◽  
...  

2019 ◽  
Author(s):  
Chao Shen ◽  
Qian Qi ◽  
Yicai Qin ◽  
Dejian Zhou ◽  
Xinyuan Chen ◽  
...  

AbstractCharcot-Marie-Tooth disease is the most common inherited peripheral neuropathy. Dominant mutations in glycyl-tRNA synthetase (GARS) gene cause peripheral nerve degeneration and lead to CMT disease type 2D. Mutations in GARS (GARSCMT2D) show partial loss-of-function features, suggesting that tRNA-charging deficits play a role in disease pathogenesis, but the underlying mechanisms are not fully understood. In this study we report that wild-type GARS tightly binds the NAD+-dependent deacetylase SIRT2 and inhibits its deacetylation activity, resulting in the hyperacetylated α-tubulin, the major substrate of SIRT2. Previous studies showed that acetylation of α-tubulin protects microtubules from mechanical breakage and keep axonal transportation. However, CMT2D mutations in GARS can not inhibit SIRT2 deacetylation, which leads to decrease acetylated α-tubulin and severe axonal transport deficits. Genetic reduction of SIRT2 in the Drosophila model rescues the GARS–induced axonal CMT neuropathy and extends the life span. Our findings demonstrate the pathogenic role of SIRT2-dependent α-tubulin deacetylation in mutant GARS-induced neuropathies and provide new perspectives for targeting SIRT2 as a potential therapy against hereditary axonopathies.


2010 ◽  
Vol 86 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Philippe Latour ◽  
Christel Thauvin-Robinet ◽  
Chantal Baudelet-Méry ◽  
Pierre Soichot ◽  
Veronica Cusin ◽  
...  

2014 ◽  
Vol 35 (4) ◽  
pp. 512-512 ◽  
Author(s):  
Heather M. McLaughlin ◽  
Reiko Sakaguchi ◽  
William Giblin ◽  
Thomas E. Wilson ◽  
Leslie Biesecker ◽  
...  

2011 ◽  
Vol 33 (1) ◽  
pp. 244-253 ◽  
Author(s):  
Heather M. McLaughlin ◽  
Reiko Sakaguchi ◽  
William Giblin ◽  
Thomas E. Wilson ◽  
Leslie Biesecker ◽  
...  

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