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GeneBe

1-30716197-C-T

Variant summary

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

The NM_002379.3(MATN1):c.919G>A(p.Val307Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000743 in 1,614,236 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000079 ( 0 hom. )

Consequence

MATN1
NM_002379.3 missense

Scores

4
12
3

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.17
Variant links:
Genes affected
MATN1 (HGNC:6907): (matrilin 1) This gene encodes a member of von Willebrand factor A domain containing protein family. This family of proteins are thought to be involved in the formation of filamentous networks in the extracellular matrices of various tissues. Mutations of this gene have been associated with variety of inherited chondrodysplasias. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MATN1NM_002379.3 linkuse as main transcriptc.919G>A p.Val307Met missense_variant 5/8 ENST00000373765.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MATN1ENST00000373765.5 linkuse as main transcriptc.919G>A p.Val307Met missense_variant 5/81 NM_002379.3 P1
MATN1ENST00000477320.1 linkuse as main transcriptn.772G>A non_coding_transcript_exon_variant 3/32

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152240
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.000107
AC:
27
AN:
251456
Hom.:
0
AF XY:
0.000155
AC XY:
21
AN XY:
135914
show subpopulations
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:
0.000686
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000787
AC:
115
AN:
1461878
Hom.:
0
Cov.:
35
AF XY:
0.000107
AC XY:
78
AN XY:
727242
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000835
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000315
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.0000328
AC:
5
AN:
152358
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74510
show subpopulations
Gnomad4 AFR
AF:
0.0000240
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000473
Alfa
AF:
0.000111
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.000165
AC:
20
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsSep 20, 2023The c.919G>A (p.V307M) alteration is located in exon 5 (coding exon 5) of the MATN1 gene. This alteration results from a G to A substitution at nucleotide position 919, causing the valine (V) at amino acid position 307 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.56
BayesDel_addAF
Benign
-0.035
T
BayesDel_noAF
Uncertain
0.070
Cadd
Pathogenic
26
Dann
Pathogenic
1.0
DEOGEN2
Uncertain
0.44
T
Eigen
Pathogenic
0.72
Eigen_PC
Uncertain
0.63
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.91
D
M_CAP
Uncertain
0.20
D
MetaRNN
Uncertain
0.68
D
MetaSVM
Uncertain
0.57
D
MutationAssessor
Uncertain
2.8
M
MutationTaster
Benign
1.0
D
PrimateAI
Uncertain
0.70
T
PROVEAN
Benign
-1.8
N
REVEL
Pathogenic
0.69
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.78
MVP
0.95
MPC
0.89
ClinPred
0.39
T
GERP RS
4.4
Varity_R
0.25
gMVP
0.68

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: rs199657271; hg19: chr1-31189044; COSMIC: COSV65650919; COSMIC: COSV65650919; API