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GeneBe

2-20005919-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_002381.5(MATN3):​c.615G>A​(p.Glu205=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.445 in 1,612,252 control chromosomes in the GnomAD database, including 163,336 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.47 ( 17086 hom., cov: 32)
Exomes 𝑓: 0.44 ( 146250 hom. )

Consequence

MATN3
NM_002381.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.310
Variant links:
Genes affected
MATN3 (HGNC:6909): (matrilin 3) This gene encodes a member of von Willebrand factor A domain containing protein family. This family of proteins is thought to be involved in the formation of filamentous networks in the extracellular matrices of various tissues. This protein contains two von Willebrand factor A domains; it is present in the cartilage extracellular matrix and has a role in the development and homeostasis of cartilage and bone. Mutations in this gene result in multiple epiphyseal dysplasia. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.39).
BP6
Variant 2-20005919-C-T is Benign according to our data. Variant chr2-20005919-C-T is described in ClinVar as [Benign]. Clinvar id is 195170.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.31 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.619 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MATN3NM_002381.5 linkuse as main transcriptc.615G>A p.Glu205= synonymous_variant 2/8 ENST00000407540.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MATN3ENST00000407540.8 linkuse as main transcriptc.615G>A p.Glu205= synonymous_variant 2/81 NM_002381.5 P1O15232-1
MATN3ENST00000421259.2 linkuse as main transcriptc.615G>A p.Glu205= synonymous_variant 2/71 O15232-2

Frequencies

GnomAD3 genomes
AF:
0.470
AC:
71353
AN:
151926
Hom.:
17062
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.519
Gnomad AMI
AF:
0.532
Gnomad AMR
AF:
0.495
Gnomad ASJ
AF:
0.409
Gnomad EAS
AF:
0.637
Gnomad SAS
AF:
0.588
Gnomad FIN
AF:
0.430
Gnomad MID
AF:
0.417
Gnomad NFE
AF:
0.421
Gnomad OTH
AF:
0.476
GnomAD3 exomes
AF:
0.473
AC:
116386
AN:
245802
Hom.:
28198
AF XY:
0.475
AC XY:
63416
AN XY:
133418
show subpopulations
Gnomad AFR exome
AF:
0.515
Gnomad AMR exome
AF:
0.493
Gnomad ASJ exome
AF:
0.414
Gnomad EAS exome
AF:
0.631
Gnomad SAS exome
AF:
0.591
Gnomad FIN exome
AF:
0.435
Gnomad NFE exome
AF:
0.418
Gnomad OTH exome
AF:
0.467
GnomAD4 exome
AF:
0.443
AC:
646821
AN:
1460206
Hom.:
146250
Cov.:
63
AF XY:
0.447
AC XY:
324334
AN XY:
726294
show subpopulations
Gnomad4 AFR exome
AF:
0.528
Gnomad4 AMR exome
AF:
0.487
Gnomad4 ASJ exome
AF:
0.422
Gnomad4 EAS exome
AF:
0.695
Gnomad4 SAS exome
AF:
0.588
Gnomad4 FIN exome
AF:
0.430
Gnomad4 NFE exome
AF:
0.419
Gnomad4 OTH exome
AF:
0.450
GnomAD4 genome
AF:
0.470
AC:
71427
AN:
152046
Hom.:
17086
Cov.:
32
AF XY:
0.474
AC XY:
35269
AN XY:
74336
show subpopulations
Gnomad4 AFR
AF:
0.519
Gnomad4 AMR
AF:
0.496
Gnomad4 ASJ
AF:
0.409
Gnomad4 EAS
AF:
0.637
Gnomad4 SAS
AF:
0.587
Gnomad4 FIN
AF:
0.430
Gnomad4 NFE
AF:
0.421
Gnomad4 OTH
AF:
0.481
Alfa
AF:
0.429
Hom.:
17261
Bravo
AF:
0.471
Asia WGS
AF:
0.621
AC:
2158
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Jun 08, 2015- -
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJan 31, 2024- -
Multiple epiphyseal dysplasia type 5 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 13, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.39
CADD
Benign
8.0
DANN
Benign
0.71

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs28401180; hg19: chr2-20205680; COSMIC: COSV68100410; COSMIC: COSV68100410; API