5-139307737-G-A

Variant names:

• chr5-139307737-G-A
• rs745440760
• NM_018834.6:c.322G>A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_018834.6(MATR3):​c.322G>A​(p.Ala108Thr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign 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. A108S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: MATR3 NM_018834.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.79

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 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20318168).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MATR3	NM_018834.6	c.322G>A	p.Ala108Thr	missense_variant	Exon 2 of 15	ENST00000394805.8	NP_061322.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MATR3	ENST00000394805.8	c.322G>A	p.Ala108Thr	missense_variant	Exon 2 of 15	1	NM_018834.6	ENSP00000378284.3
MATR3	ENST00000394800.6	c.322G>A	p.Ala108Thr	missense_variant	Exon 6 of 19	5		ENSP00000378279.2
MATR3	ENST00000502929.5	c.322G>A	p.Ala108Thr	missense_variant	Exon 7 of 20	2		ENSP00000422319.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.0000119 AC: 3 AN: 251300 Hom.: 0 AF XY: 0.0000147 AC XY: 2 AN XY: 135824

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 SAS exome AF: 0.0000980

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000205 AC: 3 AN: 1461834 Hom.: 0 Cov.: 34 AF XY: 0.00000275 AC XY: 2 AN XY: 727222

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000348

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.77
BayesDel_addAF	Benign	-0.010	T
BayesDel_noAF	Uncertain	-0.050
CADD	Pathogenic	35
DANN	Uncertain	0.99
DEOGEN2	Benign	0.047	T;T;T;T;T;.;T;T
Eigen	Benign	-0.039
Eigen_PC	Benign	0.10
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Benign	0.80	.;.;.;T;.;T;T;T
M_CAP	Uncertain	0.11	D
MetaRNN	Benign	0.20	T;T;T;T;T;T;T;T
MetaSVM	Uncertain	-0.020	T
MutationAssessor	Benign	1.0	L;L;.;.;L;.;.;L
PrimateAI	Uncertain	0.67	T
PROVEAN	Benign	-0.69	N;N;N;N;N;N;N;.
REVEL	Uncertain	0.40
Sift	Benign	0.16	T;T;T;T;T;D;T;.
Sift4G	Pathogenic	0.0	D;D;D;D;D;D;D;D
Polyphen		0.0010	B;B;P;P;B;.;P;B
Vest4		0.88
MutPred		0.15		Loss of helix (P = 0.0093);Loss of helix (P = 0.0093);Loss of helix (P = 0.0093);Loss of helix (P = 0.0093);Loss of helix (P = 0.0093);Loss of helix (P = 0.0093);Loss of helix (P = 0.0093);Loss of helix (P = 0.0093);
MVP		0.80
MPC		2.0
ClinPred		0.59	D
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.20
gMVP		0.76

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

LitVar

Other links and lift over

dbSNP: rs745440760; hg19: chr5-138643426;