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20-45297911-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001393530.1(MATN4):​c.1579+7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000263 in 1,613,944 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00032 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00026 ( 0 hom. )

Consequence

MATN4
NM_001393530.1 splice_region, intron

Scores

2
Splicing: ADA: 0.00004070
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.00200
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 Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.81).
BP6
Variant 20-45297911-C-T is Benign according to our data. Variant chr20-45297911-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3048790.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
MATN4NM_001393530.1 linkuse as main transcriptc.1579+7G>A splice_region_variant, intron_variant ENST00000372756.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
MATN4ENST00000372756.6 linkuse as main transcriptc.1579+7G>A splice_region_variant, intron_variant 1 NM_001393530.1 O95460-2

Frequencies

GnomAD3 genomes
AF:
0.000315
AC:
48
AN:
152184
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000647
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000151
AC:
38
AN:
251152
Hom.:
0
AF XY:
0.000125
AC XY:
17
AN XY:
135764
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.000199
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000300
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000257
AC:
376
AN:
1461760
Hom.:
0
Cov.:
34
AF XY:
0.000254
AC XY:
185
AN XY:
727184
show subpopulations
Gnomad4 AFR exome
AF:
0.0000896
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.000115
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.0000562
Gnomad4 NFE exome
AF:
0.000321
Gnomad4 OTH exome
AF:
0.0000994
GnomAD4 genome
AF:
0.000315
AC:
48
AN:
152184
Hom.:
0
Cov.:
32
AF XY:
0.000256
AC XY:
19
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000647
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000366
Hom.:
0
Bravo
AF:
0.000219
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.000436
EpiControl
AF:
0.000415

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

MATN4-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesNov 26, 2019This 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
BayesDel_noAF
Benign
-0.81
CADD
Benign
0.060
DANN
Benign
0.68

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000041
dbscSNV1_RF
Benign
0.0040
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: rs781206229; hg19: chr20-43926551; COSMIC: COSV61351363; API