rs587777301

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_018834.6(MATR3):​c.1864A>G​(p.Thr622Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000018 in 1,614,184 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. T622T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

MATR3
NM_018834.6 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter P:1U:1

Conservation

PhyloP100: 0.609

Publications

20 publications found
Variant links:
Genes affected
MATR3 (HGNC:6912): (matrin 3) This gene encodes a nuclear matrix protein, which is proposed to stabilize certain messenger RNA species. Mutations of this gene are associated with distal myopathy 2, which often includes vocal cord and pharyngeal weakness. Alternatively spliced transcript variants, including read-through transcripts composed of the upstream small nucleolar RNA host gene 4 (non-protein coding) and matrin 3 gene sequence, have been identified. Pseudogenes of this gene are located on chromosomes 1 and X. [provided by RefSeq, Aug 2013]
MATR3 Gene-Disease associations (from GenCC):
  • amyotrophic lateral sclerosis type 21
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • amyotrophic lateral sclerosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • distal myopathy with vocal cord weakness
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.054648817).
BS2
High AC in GnomAdExome4 at 27 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MATR3NM_018834.6 linkc.1864A>G p.Thr622Ala missense_variant Exon 12 of 15 ENST00000394805.8 NP_061322.2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MATR3ENST00000394805.8 linkc.1864A>G p.Thr622Ala missense_variant Exon 12 of 15 1 NM_018834.6 ENSP00000378284.3
MATR3ENST00000502929.5 linkc.1864A>G p.Thr622Ala missense_variant Exon 17 of 20 2 ENSP00000422319.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152258
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
250976
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000882
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1461808
Hom.:
0
Cov.:
32
AF XY:
0.0000179
AC XY:
13
AN XY:
727190
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44712
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86244
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53414
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5760
European-Non Finnish (NFE)
AF:
0.0000234
AC:
26
AN:
1111982
Other (OTH)
AF:
0.00
AC:
0
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152376
Hom.:
0
Cov.:
33
AF XY:
0.0000268
AC XY:
2
AN XY:
74514
show subpopulations
African (AFR)
AF:
0.0000240
AC:
1
AN:
41594
American (AMR)
AF:
0.00
AC:
0
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Amyotrophic lateral sclerosis type 21 Pathogenic:1Uncertain:1
Nov 17, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces threonine, which is neutral and polar, with alanine, which is neutral and non-polar, at codon 622 of the MATR3 protein (p.Thr622Ala). This variant is present in population databases (rs587777301, gnomAD 0.0009%). This missense change has been observed in individual(s) with clinical features of amyotrophic lateral sclerosis (PMID: 24686783; Invitae). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 126562). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt MATR3 protein function. Experimental studies are conflicting or provide insufficient evidence to determine the effect of this variant on MATR3 function (PMID: 24686783, 26528920, 29109432, 30015619). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Mar 30, 2014
OMIM
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.057
BayesDel_addAF
Benign
-0.22
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
1.5
DANN
Benign
0.26
DEOGEN2
Benign
0.042
T;T;T;T;T;T;T;T;.;T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.4
FATHMM_MKL
Benign
0.0066
N
LIST_S2
Benign
0.63
.;.;.;.;T;.;T;T;T;T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.055
T;T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
-0.55
N;N;.;.;.;N;.;.;.;N
PhyloP100
0.61
PrimateAI
Benign
0.42
T
PROVEAN
Benign
-0.38
N;N;N;N;N;N;N;N;N;.
REVEL
Benign
0.21
Sift
Benign
0.48
T;T;T;T;T;T;T;T;T;.
Sift4G
Benign
1.0
T;T;.;T;T;T;.;T;T;T
Polyphen
0.0
B;B;.;B;B;B;.;B;.;B
Vest4
0.086
MutPred
0.23
Loss of phosphorylation at T622 (P = 0.0018);Loss of phosphorylation at T622 (P = 0.0018);.;Loss of phosphorylation at T622 (P = 0.0018);Loss of phosphorylation at T622 (P = 0.0018);Loss of phosphorylation at T622 (P = 0.0018);.;Loss of phosphorylation at T622 (P = 0.0018);.;Loss of phosphorylation at T622 (P = 0.0018);
MVP
0.51
MPC
0.91
ClinPred
0.013
T
GERP RS
-3.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.015
gMVP
0.14
Mutation Taster
=3/97
disease causing (ClinVar)

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: rs587777301; hg19: chr5-138658372; API