rs28598872

Variant summary

Our verdict is Benign. The variant received -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

Publications

18 publications found
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]
MATN3 Gene-Disease associations (from GenCC):
  • multiple epiphyseal dysplasia type 5
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • spondyloepimetaphyseal dysplasia, matrilin-3 type
    Inheritance: AR, Unknown Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -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 VariationId 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
GnomAD2 exomes
AF:
0.475
AC:
118253
AN:
249030
AF XY:
0.477
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 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
African (AFR)
AF:
0.530
AC:
17754
AN:
33480
American (AMR)
AF:
0.487
AC:
21788
AN:
44710
Ashkenazi Jewish (ASJ)
AF:
0.421
AC:
11016
AN:
26136
East Asian (EAS)
AF:
0.695
AC:
27580
AN:
39694
South Asian (SAS)
AF:
0.588
AC:
50756
AN:
86254
European-Finnish (FIN)
AF:
0.432
AC:
23072
AN:
53400
Middle Eastern (MID)
AF:
0.497
AC:
2865
AN:
5768
European-Non Finnish (NFE)
AF:
0.419
AC:
465693
AN:
1111784
Other (OTH)
AF:
0.451
AC:
27197
AN:
60364
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
23164
46327
69491
92654
115818
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
14512
29024
43536
58048
72560
<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:
0.471
AC:
71565
AN:
151972
Hom.:
17151
Cov.:
32
AF XY:
0.476
AC XY:
35311
AN XY:
74254
show subpopulations
African (AFR)
AF:
0.521
AC:
21585
AN:
41444
American (AMR)
AF:
0.496
AC:
7574
AN:
15274
Ashkenazi Jewish (ASJ)
AF:
0.409
AC:
1418
AN:
3468
East Asian (EAS)
AF:
0.637
AC:
3276
AN:
5146
South Asian (SAS)
AF:
0.587
AC:
2824
AN:
4812
European-Finnish (FIN)
AF:
0.433
AC:
4565
AN:
10552
Middle Eastern (MID)
AF:
0.405
AC:
119
AN:
294
European-Non Finnish (NFE)
AF:
0.422
AC:
28699
AN:
67960
Other (OTH)
AF:
0.483
AC:
1020
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
1912
3825
5737
7650
9562
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
662
1324
1986
2648
3310
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.437
Hom.:
9363
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
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

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

- -

not specified Benign:2
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Jun 08, 2015
Eurofins Ntd Llc (ga)
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
PhyloP100
-5.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=99/1
polymorphism (auto)

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