rs28598872

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_002381.5(MATN3):​c.447C>T​(p.Ala149Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.446 in 1,613,562 control chromosomes in the GnomAD database, including 163,762 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.47 ( 17151 hom., cov: 32)
Exomes 𝑓: 0.44 ( 146611 hom. )

Consequence

MATN3
NM_002381.5 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -5.19
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant 2-20006087-G-A is Benign according to our data. Variant chr2-20006087-G-A is described in ClinVar as [Benign]. Clinvar id is 195169.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-5.19 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.618 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MATN3NM_002381.5 linkc.447C>T p.Ala149Ala synonymous_variant Exon 2 of 8 ENST00000407540.8 NP_002372.1 O15232-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MATN3ENST00000407540.8 linkc.447C>T p.Ala149Ala synonymous_variant Exon 2 of 8 1 NM_002381.5 ENSP00000383894.3 O15232-1
MATN3ENST00000421259.2 linkc.447C>T p.Ala149Ala synonymous_variant Exon 2 of 7 1 ENSP00000398753.2 O15232-2

Frequencies

GnomAD3 genomes
AF:
0.471
AC:
71491
AN:
151854
Hom.:
17127
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.521
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:
0.433
Gnomad MID
AF:
0.411
Gnomad NFE
AF:
0.422
Gnomad OTH
AF:
0.477
GnomAD3 exomes
AF:
0.475
AC:
118253
AN:
249030
Hom.:
28923
AF XY:
0.477
AC XY:
64398
AN XY:
135112
show subpopulations
Gnomad AFR exome
AF:
0.519
Gnomad AMR exome
AF:
0.493
Gnomad ASJ exome
AF:
0.414
Gnomad EAS exome
AF:
0.632
Gnomad SAS exome
AF:
0.592
Gnomad FIN exome
AF:
0.438
Gnomad NFE exome
AF:
0.419
Gnomad OTH exome
AF:
0.466
GnomAD4 exome
AF:
0.443
AC:
647721
AN:
1461590
Hom.:
146611
Cov.:
57
AF XY:
0.447
AC XY:
324843
AN XY:
727076
show subpopulations
Gnomad4 AFR exome
AF:
0.530
Gnomad4 AMR exome
AF:
0.487
Gnomad4 ASJ exome
AF:
0.421
Gnomad4 EAS exome
AF:
0.695
Gnomad4 SAS exome
AF:
0.588
Gnomad4 FIN exome
AF:
0.432
Gnomad4 NFE exome
AF:
0.419
Gnomad4 OTH exome
AF:
0.451
GnomAD4 genome
AF:
0.471
AC:
71565
AN:
151972
Hom.:
17151
Cov.:
32
AF XY:
0.476
AC XY:
35311
AN XY:
74254
show subpopulations
Gnomad4 AFR
AF:
0.521
Gnomad4 AMR
AF:
0.496
Gnomad4 ASJ
AF:
0.409
Gnomad4 EAS
AF:
0.637
Gnomad4 SAS
AF:
0.587
Gnomad4 FIN
AF:
0.433
Gnomad4 NFE
AF:
0.422
Gnomad4 OTH
AF:
0.483
Alfa
AF:
0.436
Hom.:
7278
Bravo
AF:
0.472
Asia WGS
AF:
0.621
AC:
2158
AN:
3478
EpiCase
AF:
0.423
EpiControl
AF:
0.425

ClinVar

Significance: Benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Nov 12, 2018
GeneDx
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:2
Jun 08, 2015
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Multiple epiphyseal dysplasia type 5 Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This 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
-0.79
CADD
Benign
0.35
DANN
Benign
0.78
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs28598872; hg19: chr2-20205848; COSMIC: COSV68099878; COSMIC: COSV68099878; API