Variant rs104893640 details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3

The NM_002381.5(MATN3):c.209G>A(p.Arg70His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000838 in 1,229,358 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000078 ( 1 hom. )

Consequence

MATN3
NM_002381.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts P:1U:2O:1

Conservation

PhyloP100: 1.01

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 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.798

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MATN3	NM_002381.5 linkuse as main transcript	c.209G>A	p.Arg70His	missense_variant	1/8	ENST00000407540.8	NP_002372.1	O15232-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MATN3	ENST00000407540.8 linkuse as main transcript	c.209G>A	p.Arg70His	missense_variant	1/8	1	NM_002381.5	ENSP00000383894.3		O15232-1
MATN3	ENST00000421259.2 linkuse as main transcript	c.209G>A	p.Arg70His	missense_variant	1/7	1		ENSP00000398753.2		O15232-2

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00367

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000780

AC:

AN:

1077100

Hom.:

Cov.:

AF XY:

0.0000570

AC XY:

AN XY:

508602

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00299

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000109

Gnomad4 OTH exome

AF:

0.0000920

GnomAD4 genome

AF:

0.000125

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.000134

AC XY:

AN XY:

74450

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00369

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000945

ClinVar

Significance: Uncertain significance

Submissions summary: Pathogenic:1Uncertain:2Other:1

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Multiple epiphyseal dysplasia type 5

Pathogenic:1Uncertain:1

Pathogenic, no assertion criteria provided	literature only	OMIM	Jul 30, 2005	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 28, 2017	This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. However, the evidence from the literature, in combination with allele frequency data from public databases where available, was not sufficient to rule this variant in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 02, 2021

This sequence change replaces arginine with histidine at codon 70 of the MATN3 protein (p.Arg70His). The arginine residue is weakly conserved and there is a small physicochemical difference between arginine and histidine. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This missense change has been observed in individual(s) with multipleepiphyseal dysplasia (PMID: 15948199). ClinVar contains an entry for this variant (Variation ID: 7545). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. 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. -

Multiple epiphyseal dysplasia

Other:1

not provided, no classification provided

literature only

GeneReviews

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.12

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.13

T;.

Eigen

Benign

-0.62

Eigen_PC

Benign

-0.73

FATHMM_MKL

Benign

0.078

LIST_S2

Benign

0.70

T;T

M_CAP

Benign

0.029

MetaRNN

Pathogenic

0.80

D;D

MetaSVM

Benign

-0.79

MutationAssessor

Benign

0.34

N;N

PrimateAI

Uncertain

0.72

PROVEAN

Benign

-0.37

N;N

REVEL

Uncertain

0.47

Sift

Benign

0.14

T;T

Sift4G

Benign

0.16

T;T

Polyphen

0.80

P;.

Vest4

0.29

MutPred

0.78

Loss of methylation at R70 (P = 0.0189);Loss of methylation at R70 (P = 0.0189);

MVP

0.79

MPC

0.35

ClinPred

0.17

GERP RS

1.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.066

gMVP

0.35

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over