11-102578736-AAAAAAAC-A

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP6_ModerateBA1

The NM_004771.4(MMP20):​c.1351+296_1351+302delGTTTTTT variant causes a intron change involving the alteration of a non-conserved nucleotide. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.63 ( 30116 hom., cov: 0)

Consequence

MMP20
NM_004771.4 intron

Scores

Not classified

Clinical Significance

Benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.591

Publications

0 publications found
Variant links:
Genes affected
MMP20 (HGNC:7167): (matrix metallopeptidase 20) Proteins of the matrix metalloproteinase (MMP) family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. Most MMP's are secreted as inactive proproteins which are activated when cleaved by extracellular proteinases. The protein encoded by this gene degrades amelogenin, the major protein component of dental enamel matrix, and thus thought to play a role in tooth enamel formation. A mutation in this gene, which alters the normal splice pattern and results in premature termination of the encoded protein, has been associated with amelogenesis imperfecta. This gene is part of a cluster of MMP genes located on chromosome 11q22.3. [provided by RefSeq, Aug 2011]
MMP20 Gene-Disease associations (from GenCC):
  • amelogenesis imperfecta hypomaturation type 2A2
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • amelogenesis imperfecta type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP6
Variant 11-102578736-AAAAAAAC-A is Benign according to our data. Variant chr11-102578736-AAAAAAAC-A is described in ClinVar as [Benign]. Clinvar id is 1250384.Status of the report is criteria_provided_single_submitter, 1 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.748 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MMP20NM_004771.4 linkc.1351+296_1351+302delGTTTTTT intron_variant Intron 9 of 9 ENST00000260228.3 NP_004762.2 O60882

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MMP20ENST00000260228.3 linkc.1351+296_1351+302delGTTTTTT intron_variant Intron 9 of 9 1 NM_004771.4 ENSP00000260228.2 O60882
MMP20ENST00000542305.1 linkn.249+296_249+302delGTTTTTT intron_variant Intron 2 of 2 2

Frequencies

GnomAD3 genomes
AF:
0.625
AC:
94046
AN:
150454
Hom.:
30073
Cov.:
0
show subpopulations
Gnomad AFR
AF:
0.755
Gnomad AMI
AF:
0.423
Gnomad AMR
AF:
0.600
Gnomad ASJ
AF:
0.533
Gnomad EAS
AF:
0.754
Gnomad SAS
AF:
0.491
Gnomad FIN
AF:
0.636
Gnomad MID
AF:
0.545
Gnomad NFE
AF:
0.559
Gnomad OTH
AF:
0.596
We have no GnomAD4 exomes data on this position. Probably position not covered by the project.
GnomAD4 genome
AF:
0.625
AC:
94140
AN:
150572
Hom.:
30116
Cov.:
0
AF XY:
0.627
AC XY:
46059
AN XY:
73458
show subpopulations
African (AFR)
AF:
0.755
AC:
30885
AN:
40908
American (AMR)
AF:
0.600
AC:
9077
AN:
15124
Ashkenazi Jewish (ASJ)
AF:
0.533
AC:
1844
AN:
3460
East Asian (EAS)
AF:
0.754
AC:
3835
AN:
5086
South Asian (SAS)
AF:
0.491
AC:
2341
AN:
4766
European-Finnish (FIN)
AF:
0.636
AC:
6501
AN:
10220
Middle Eastern (MID)
AF:
0.538
AC:
157
AN:
292
European-Non Finnish (NFE)
AF:
0.559
AC:
37868
AN:
67720
Other (OTH)
AF:
0.598
AC:
1250
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
1606
3211
4817
6422
8028
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
758
1516
2274
3032
3790
<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:
0.578
Hom.:
792

ClinVar

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

Submissions by phenotype

not provided Benign:1
Jun 19, 2021
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
0.59
Mutation Taster
=100/0
polymorphism (auto)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs147058509; hg19: chr11-102449467; COSMIC: COSV107279685; API