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chr20-45293944-G-A

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001393530.1(MATN4):​c.1651C>T​(p.Arg551Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00287 in 1,602,248 control chromosomes in the GnomAD database, including 107 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.014 ( 51 hom., cov: 32)
Exomes 𝑓: 0.0017 ( 56 hom. )

Consequence

MATN4
NM_001393530.1 missense

Scores

4
10

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.94
Variant links:
Genes affected
MATN4 (HGNC:6910): (matrilin 4) This gene encodes a member of von Willebrand factor A domain-containing protein family. The proteins of this family are thought to be involved in the formation of filamentous networks in the extracellular matrices of various tissues. This family member is thought to be play a role in reorganizing and regenerating the corneal matrix in granular and lattice type I dystrophies. It may also be involved in wound healing in the dentin-pulp complex. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2013]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0048134327).
BP6
Variant 20-45293944-G-A is Benign according to our data. Variant chr20-45293944-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 714818.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAdExome4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0544 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MATN4NM_001393530.1 linkuse as main transcriptc.1651C>T p.Arg551Cys missense_variant 9/10 ENST00000372756.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MATN4ENST00000372756.6 linkuse as main transcriptc.1651C>T p.Arg551Cys missense_variant 9/101 NM_001393530.1 O95460-2

Frequencies

GnomAD3 genomes
AF:
0.0143
AC:
2178
AN:
152206
Hom.:
51
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0491
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00726
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.000147
Gnomad OTH
AF:
0.00908
GnomAD3 exomes
AF:
0.00387
AC:
931
AN:
240632
Hom.:
11
AF XY:
0.00282
AC XY:
370
AN XY:
131018
show subpopulations
Gnomad AFR exome
AF:
0.0510
Gnomad AMR exome
AF:
0.00268
Gnomad ASJ exome
AF:
0.000101
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000666
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000196
Gnomad OTH exome
AF:
0.00219
GnomAD4 exome
AF:
0.00166
AC:
2406
AN:
1449924
Hom.:
56
Cov.:
31
AF XY:
0.00145
AC XY:
1048
AN XY:
721900
show subpopulations
Gnomad4 AFR exome
AF:
0.0566
Gnomad4 AMR exome
AF:
0.00360
Gnomad4 ASJ exome
AF:
0.000192
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.000117
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000130
Gnomad4 OTH exome
AF:
0.00339
GnomAD4 genome
AF:
0.0143
AC:
2185
AN:
152324
Hom.:
51
Cov.:
32
AF XY:
0.0139
AC XY:
1034
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.0491
Gnomad4 AMR
AF:
0.00719
Gnomad4 ASJ
AF:
0.000288
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000147
Gnomad4 OTH
AF:
0.00899
Alfa
AF:
0.00231
Hom.:
4
Bravo
AF:
0.0163
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.0445
AC:
196
ESP6500EA
AF:
0.000233
AC:
2
ExAC
AF:
0.00467
AC:
567
Asia WGS
AF:
0.00346
AC:
12
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000119

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJul 04, 2018- -
MATN4-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJan 02, 2020This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.21
BayesDel_addAF
Benign
-0.49
T
BayesDel_noAF
Benign
-0.43
CADD
Pathogenic
27
DANN
Uncertain
1.0
Eigen
Uncertain
0.37
Eigen_PC
Uncertain
0.39
FATHMM_MKL
Uncertain
0.81
D
MetaRNN
Benign
0.0048
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
0.92
D;D;D;D;D;D;D;D
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-2.0
N;N;N;N;N
REVEL
Benign
0.17
Sift4G
Benign
0.085
T;T;T;T;T
Polyphen
0.99
D;.;D;D;D
Vest4
0.36
MVP
0.67
MPC
1.3
ClinPred
0.050
T
GERP RS
3.7
Varity_R
0.58
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs2233105; hg19: chr20-43922584; API