rs200279483

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_002047.4(GARS1):​c.408A>C​(p.Gln136His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,620 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q136K) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

GARS1
NM_002047.4 missense

Scores

5
8
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.22

Publications

0 publications found
Variant links:
Genes affected
GARS1 (HGNC:4162): (glycyl-tRNA synthetase 1) This gene encodes glycyl-tRNA synthetase, one of the aminoacyl-tRNA synthetases that charge tRNAs with their cognate amino acids. The encoded enzyme is an (alpha)2 dimer which belongs to the class II family of tRNA synthetases. It has been shown to be a target of autoantibodies in the human autoimmune diseases, polymyositis or dermatomyositis. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2015]
GARS1 Gene-Disease associations (from GenCC):
  • Charcot-Marie-Tooth disease type 2D
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet
  • neuronopathy, distal hereditary motor, type 5A
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Illumina, Laboratory for Molecular Medicine
  • spinal muscular atrophy, infantile, James type
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.83

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GARS1NM_002047.4 linkc.408A>C p.Gln136His missense_variant Exon 3 of 17 ENST00000389266.8 NP_002038.2
GARS1NM_001316772.1 linkc.246A>C p.Gln82His missense_variant Exon 3 of 17 NP_001303701.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GARS1ENST00000389266.8 linkc.408A>C p.Gln136His missense_variant Exon 3 of 17 1 NM_002047.4 ENSP00000373918.3
GARS1ENST00000675651.1 linkc.408A>C p.Gln136His missense_variant Exon 3 of 17 ENSP00000502513.1
GARS1ENST00000675810.1 linkc.306A>C p.Gln102His missense_variant Exon 2 of 16 ENSP00000502743.1
GARS1ENST00000675693.1 linkc.240A>C p.Gln80His missense_variant Exon 4 of 18 ENSP00000502174.1
GARS1ENST00000675051.1 linkc.207A>C p.Gln69His missense_variant Exon 3 of 17 ENSP00000502296.1
GARS1ENST00000674815.1 linkc.39A>C p.Gln13His missense_variant Exon 3 of 17 ENSP00000502799.1
GARS1ENST00000674851.1 linkc.39A>C p.Gln13His missense_variant Exon 4 of 18 ENSP00000502451.1
GARS1ENST00000444666.6 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 18 3 ENSP00000415447.2
GARS1ENST00000674616.1 linkn.*122A>C non_coding_transcript_exon_variant Exon 4 of 18 ENSP00000502408.1
GARS1ENST00000674643.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 17 ENSP00000501636.1
GARS1ENST00000674737.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 18 ENSP00000502464.1
GARS1ENST00000674807.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 16 ENSP00000502814.1
GARS1ENST00000675529.1 linkn.*278A>C non_coding_transcript_exon_variant Exon 4 of 18 ENSP00000501655.1
GARS1ENST00000675859.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 15 ENSP00000502033.1
GARS1ENST00000676088.1 linkn.*278A>C non_coding_transcript_exon_variant Exon 4 of 19 ENSP00000501884.1
GARS1ENST00000676140.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 17 ENSP00000502571.1
GARS1ENST00000676164.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 17 ENSP00000501986.1
GARS1ENST00000676210.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 18 ENSP00000502373.1
GARS1ENST00000676259.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 17 ENSP00000501980.1
GARS1ENST00000676403.1 linkn.408A>C non_coding_transcript_exon_variant Exon 3 of 16 ENSP00000502681.1
GARS1ENST00000674616.1 linkn.*122A>C 3_prime_UTR_variant Exon 4 of 18 ENSP00000502408.1
GARS1ENST00000675529.1 linkn.*278A>C 3_prime_UTR_variant Exon 4 of 18 ENSP00000501655.1
GARS1ENST00000676088.1 linkn.*278A>C 3_prime_UTR_variant Exon 4 of 19 ENSP00000501884.1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460620
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
726746
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
33452
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26124
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39680
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53402
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1110870
Other (OTH)
AF:
0.00
AC:
0
AN:
60360
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.69
BayesDel_addAF
Pathogenic
0.27
D
BayesDel_noAF
Pathogenic
0.16
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.71
D
Eigen
Benign
-0.15
Eigen_PC
Benign
-0.17
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.97
D
M_CAP
Uncertain
0.17
D
MetaRNN
Pathogenic
0.83
D
MetaSVM
Benign
-0.42
T
PhyloP100
1.2
PrimateAI
Pathogenic
0.83
D
PROVEAN
Uncertain
-4.1
D
REVEL
Uncertain
0.61
Sift
Benign
0.14
T
Sift4G
Uncertain
0.027
D
Polyphen
0.37
B
Vest4
0.77
MutPred
0.69
Loss of helix (P = 0.3949);
MVP
0.91
MPC
0.93
ClinPred
0.98
D
GERP RS
-2.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.73
gMVP
0.79
Mutation Taster
=36/64
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs200279483; hg19: chr7-30639646; API