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Title: The crystal structure of human GlnRS provides basis for the development of neurological disorders

Journal Article · · Nucleic Acids Research
DOI:https://doi.org/10.1093/nar/gkw082· OSTI ID:1262023
 [1];  [2];  [3];  [3];  [3];  [2];  [1]
  1. Univ. of Illinois, Chicago, IL (United States)
  2. The Univ. of Texas, Houston, TX (United States)
  3. National Institute of Health, Bethesda, MD (United States)

Cytosolic glutaminyl-tRNA synthetase (GlnRS) is the singular enzyme responsible for translation of glutamine codons. Compound heterozygous mutations in GlnRS cause severe brain disorders by a poorly understood mechanism. Herein, we present crystal structures of the wild type and two pathological mutants of human GlnRS, which reveal, for the first time, the domain organization of the intact enzyme and the structure of the functionally important N-terminal domain (NTD). Pathological mutations mapping in the NTD alter the domain structure, and decrease catalytic activity and stability of GlnRS, whereas missense mutations in the catalytic domain induce misfolding of the enzyme. Our results suggest that the reduced catalytic efficiency and a propensity of GlnRS mutants to misfold trigger the disease development. As a result, this report broadens the spectrum of brain pathologies elicited by protein misfolding and provides a paradigm for understanding the role of mutations in aminoacyl-tRNA synthetases in neurological diseases. Keywords

Research Organization:
Univ. of Texas, Houston, TX (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); Michigan Economic Development Corporation; Michigan Technology Tri-Corridor; NCI; National Institute of General Medical Sciences (NIGMS) of the National Institutes of Health (NIH); The University of Texas, Health Science Center at Houston
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1262023
Journal Information:
Nucleic Acids Research, Vol. 44, Issue 7; ISSN 0305-1048
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

References (55)

Aminoacyl-tRNA Synthesis journal June 2000
Mutational isolation of a sieve for editing in a transfer RNA synthetase journal April 1994
Human tRNA synthetase catalytic nulls with diverse functions journal July 2014
New functions of aminoacyl-tRNA synthetases beyond translation journal August 2010
Unique domain appended to vertebrate tRNA synthetase is essential for vascular development journal January 2012
Aminoacyl‐tRNA synthetases in medicine and disease journal February 2013
The Role of Aminoacyl-tRNA Synthetases in Genetic Diseases journal September 2008
Glycyl tRNA Synthetase Mutations in Charcot-Marie-Tooth Disease Type 2D and Distal Spinal Muscular Atrophy Type V
  • Antonellis, Anthony; Ellsworth, Rachel E.; Sambuughin, Nyamkhishig
  • The American Journal of Human Genetics, Vol. 72, Issue 5 https://doi.org/10.1086/375039
journal May 2003
Disrupted function and axonal distribution of mutant tyrosyl-tRNA synthetase in dominant intermediate Charcot-Marie-Tooth neuropathy journal January 2006
A Major Determinant for Binding and Aminoacylation of tRNAAla in Cytoplasmic Alanyl-tRNA Synthetase Is Mutated in Dominant Axonal Charcot-Marie-Tooth Disease journal January 2010
Compound Heterozygosity for Loss-of-Function Lysyl-tRNA Synthetase Mutations in a Patient with Peripheral Neuropathy journal October 2010
Genetic Mapping and Exome Sequencing Identify Variants Associated with Five Novel Diseases journal January 2012
Mutation of the Mitochondrial Tyrosyl-tRNA Synthetase Gene, YARS2, Causes Myopathy, Lactic Acidosis, and Sideroblastic Anemia—MLASA Syndrome journal July 2010
Mutations in the Mitochondrial Methionyl-tRNA Synthetase Cause a Neurodegenerative Phenotype in Flies and a Recessive Ataxia (ARSAL) in Humans journal March 2012
Mitochondrial aspartyl-tRNA synthetase deficiency causes leukoencephalopathy with brain stem and spinal cord involvement and lactate elevation journal March 2007
Leukoencephalopathy with thalamus and brainstem involvement and high lactate ‘LTBL’ caused by EARS2 mutations journal April 2012
Mutations in mitochondrial histidyl tRNA synthetase HARS2 cause ovarian dysgenesis and sensorineural hearing loss of Perrault syndrome journal April 2011
Mutations in LARS2, Encoding Mitochondrial Leucyl-tRNA Synthetase, Lead to Premature Ovarian Failure and Hearing Loss in Perrault Syndrome journal April 2013
Deleterious Mutation in the Mitochondrial Arginyl–Transfer RNA Synthetase Gene Is Associated with Pontocerebellar Hypoplasia journal October 2007
Further delineation of pontocerebellar hypoplasia type 6 due to mutations in the gene encoding mitochondrial arginyl-tRNA synthetase, RARS2 journal November 2011
Mitochondrial phenylalanyl-tRNA synthetase mutations underlie fatal infantile Alpers encephalopathy journal July 2012
Mutations in DARS Cause Hypomyelination with Brain Stem and Spinal Cord Involvement and Leg Spasticity journal May 2013
Exome Sequencing Links Corticospinal Motor Neuron Disease to Common Neurodegenerative Disorders journal January 2014
Congenital Visual Impairment and Progressive Microcephaly Due to Lysyl–Transfer Ribonucleic Acid (RNA) Synthetase ( KARS ) Mutations : The Expanding Phenotype of Aminoacyl–Transfer RNA Synthetase Mutations in Human Disease journal October 2014
Essential nontranslational functions of tRNA synthetases journal February 2013
Transfer RNA and human disease journal June 2014
Mutations in QARS, Encoding Glutaminyl-tRNA Synthetase, Cause Progressive Microcephaly, Cerebral-Cerebellar Atrophy, and Intractable Seizures journal April 2014
Structure of E. coli glutaminyl-tRNA synthetase complexed with tRNA(Gln) and ATP at 2.8 A resolution journal December 1989
Genetic dissection of protein-protein interactions in multi-tRNA synthetase complex journal April 1999
Structural conservation of an ancient tRNA sensor in eukaryotic glutaminyl-tRNA synthetase journal December 2011
The Structure of Yeast Glutaminyl-tRNA Synthetase and Modeling of Its Interaction with tRNA journal July 2013
[20] Processing of X-ray diffraction data collected in oscillation mode book January 1997
A short history of SHELX journal December 2007
Histogram matching as a new density modification technique for phase refinement and extension of protein molecules journal January 1990
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Protein structure alignment by incremental combinatorial extension (CE) of the optimal path journal September 1998
Two enzymes bound to one transfer RNA assume alternative conformations for consecutive reactions journal September 2010
Systematic humanization of yeast genes reveals conserved functions and genetic modularity journal May 2015
Evolution of the Glx-tRNA synthetase family: the glutaminyl enzyme as a case of horizontal gene transfer. journal August 1994
Aminoacyl-tRNA Synthetases, the Genetic Code, and the Evolutionary Process journal March 2000
Structure of an archaeal non-discriminating glutamyl-tRNA synthetase: a missing link in the evolution of Gln-tRNAGln formation journal July 2010
From one amino acid to another: tRNA-dependent amino acid biosynthesis journal February 2008
Rational design of an evolutionary precursor of glutaminyl-tRNA synthetase journal December 2011
Mutations in the glutaminyl-tRNA synthetase gene cause early-onset epileptic encephalopathy journal December 2014
Expansion of the QARS deficiency phenotype with report of a family with isolated supratentorial brain abnormalities journal November 2014
tRNA splicing endonuclease mutations cause pontocerebellar hypoplasia journal August 2008
Impairment of the tRNA-splicing endonuclease subunit 54 (tsen54) gene causes neurological abnormalities and larval death in zebrafish models of pontocerebellar hypoplasia journal January 2011
Cellular strategies for controlling protein aggregation journal October 2010
Converging concepts of protein folding in vitro and in vivo journal June 2009
Gene Descent, Duplication, and Horizontal Transfer in the Evolution of Glutamyl- and Glutaminyl-tRNA Synthetases journal October 1999
Catalytic Peptide of Human Glutaminyl-tRNA Synthetase Is Essential for Its Assembly to the Aminoacyl-tRNA Synthetase Complex journal May 2000
Glutamine-dependent Antiapoptotic Interaction of Human Glutaminyl-tRNA Synthetase with Apoptosis Signal-regulating Kinase 1 journal November 2000
Coot model-building tools for molecular graphics journal November 2004
Overview of the CCP 4 suite and current developments journal March 2011
PHENIX: a comprehensive Python-based system for macromolecular structure solution. text January 2010

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