Compound heterozygosity for lossâ ofâ function GARS variants results in a multisystem developmental syndrome that includes severe growth retardation
dc.contributor.author | Oprescu, Stephanie N. | |
dc.contributor.author | Chepa‐lotrea, Xenia | |
dc.contributor.author | Takase, Ryuichi | |
dc.contributor.author | Golas, Gretchen | |
dc.contributor.author | Markello, Thomas C. | |
dc.contributor.author | Adams, David R. | |
dc.contributor.author | Toro, Camilo | |
dc.contributor.author | Gropman, Andrea L. | |
dc.contributor.author | Hou, Ya‐ming | |
dc.contributor.author | Malicdan, May Christine V. | |
dc.contributor.author | Gahl, William A. | |
dc.contributor.author | Tifft, Cynthia J. | |
dc.contributor.author | Antonellis, Anthony | |
dc.date.accessioned | 2017-10-05T18:17:52Z | |
dc.date.available | 2019-01-07T18:34:36Z | en |
dc.date.issued | 2017-10 | |
dc.identifier.citation | Oprescu, Stephanie N.; Chepa‐lotrea, Xenia ; Takase, Ryuichi; Golas, Gretchen; Markello, Thomas C.; Adams, David R.; Toro, Camilo; Gropman, Andrea L.; Hou, Ya‐ming ; Malicdan, May Christine V.; Gahl, William A.; Tifft, Cynthia J.; Antonellis, Anthony (2017). "Compound heterozygosity for lossâ ofâ function GARS variants results in a multisystem developmental syndrome that includes severe growth retardation." Human Mutation 38(10): 1412-1420. | |
dc.identifier.issn | 1059-7794 | |
dc.identifier.issn | 1098-1004 | |
dc.identifier.uri | https://hdl.handle.net/2027.42/138288 | |
dc.description.abstract | Aminoacylâ tRNA synthetases (ARSs) are ubiquitously expressed enzymes that ligate amino acids onto tRNA molecules. Genes encoding ARSs have been implicated in myriad dominant and recessive disease phenotypes. Glycylâ tRNA synthetase (GARS) is a bifunctional ARS that charges tRNAGly in the cytoplasm and mitochondria. GARS variants have been associated with dominant Charcotâ Marieâ Tooth disease but have not been convincingly implicated in recessive phenotypes. Here, we describe a patient from the NIH Undiagnosed Diseases Program with a multisystem, developmental phenotype. Wholeâ exome sequence analysis revealed that the patient is compound heterozygous for one frameshift (p.Glu83Ilefs*6) and one missense (p.Arg310Gln) GARS variant. Using in vitro and in vivo functional studies, we show that both GARS variants cause a lossâ ofâ function effect: the frameshift variant results in depleted protein levels and the missense variant reduces GARS tRNA charging activity. In support of GARS variant pathogenicity, our patient shows striking phenotypic overlap with other patients having ARSâ related recessive diseases, including features associated with variants in both cytoplasmic and mitochondrial ARSs; this observation is consistent with the essential function of GARS in both cellular locations. In summary, our clinical, genetic, and functional analyses expand the phenotypic spectrum associated with GARS variants. | |
dc.publisher | Wiley Periodicals, Inc. | |
dc.subject.other | developmental syndrome | |
dc.subject.other | aminoacylâ tRNA synthetase | |
dc.subject.other | growth retardation | |
dc.subject.other | glycylâ tRNA synthetase | |
dc.subject.other | GARS | |
dc.title | Compound heterozygosity for lossâ ofâ function GARS variants results in a multisystem developmental syndrome that includes severe growth retardation | |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | |
dc.subject.hlbsecondlevel | Genetics | |
dc.subject.hlbtoplevel | Health Sciences | |
dc.subject.hlbtoplevel | Science | |
dc.description.peerreviewed | Peer Reviewed | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/138288/1/humu23287-sup-0001-text.pdf | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/138288/2/humu23287.pdf | |
dc.description.bitstreamurl | https://deepblue.lib.umich.edu/bitstream/2027.42/138288/3/humu23287_am.pdf | |
dc.identifier.doi | 10.1002/humu.23287 | |
dc.identifier.source | Human Mutation | |
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dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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