rs3740938

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_ModerateBP7BA1

The NM_002424.3(MMP8):​c.873C>T​(p.Leu291Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0738 in 1,600,928 control chromosomes in the GnomAD database, including 5,870 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.067 ( 532 hom., cov: 30)
Exomes 𝑓: 0.074 ( 5338 hom. )

Consequence

MMP8
NM_002424.3 synonymous

Scores

2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.0700

Publications

29 publications found
Variant links:
Genes affected
MMP8 (HGNC:7175): (matrix metallopeptidase 8) This gene encodes a member of the matrix metalloproteinase (MMP) family of proteins. These proteins are involved in the breakdown of extracellular matrix in embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. Proteolysis at different sites on this protein results in multiple active forms of the enzyme with distinct N-termini. This protein functions in the degradation of type I, II and III collagens. The gene is part of a cluster of MMP genes which localize to chromosome 11q22.3. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2015]

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -11 ACMG points.

BP4
Computational evidence support a benign effect (REVEL=0.047).
BP7
Synonymous conserved (PhyloP=-0.07 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.23 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MMP8NM_002424.3 linkc.873C>T p.Leu291Leu synonymous_variant Exon 6 of 10 ENST00000236826.8 NP_002415.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MMP8ENST00000236826.8 linkc.873C>T p.Leu291Leu synonymous_variant Exon 6 of 10 1 NM_002424.3 ENSP00000236826.3
MMP8ENST00000438475.2 linkc.798C>T p.Leu266Leu synonymous_variant Exon 6 of 9 5 ENSP00000401004.2
MMP8ENST00000528662.6 linkn.*850C>T non_coding_transcript_exon_variant Exon 8 of 12 5 ENSP00000431431.2
MMP8ENST00000528662.6 linkn.*850C>T 3_prime_UTR_variant Exon 8 of 12 5 ENSP00000431431.2

Frequencies

GnomAD3 genomes
AF:
0.0674
AC:
10159
AN:
150710
Hom.:
523
Cov.:
30
show subpopulations
Gnomad AFR
AF:
0.0127
Gnomad AMI
AF:
0.105
Gnomad AMR
AF:
0.115
Gnomad ASJ
AF:
0.0887
Gnomad EAS
AF:
0.242
Gnomad SAS
AF:
0.153
Gnomad FIN
AF:
0.0756
Gnomad MID
AF:
0.0382
Gnomad NFE
AF:
0.0678
Gnomad OTH
AF:
0.0712
GnomAD2 exomes
AF:
0.0973
AC:
24250
AN:
249108
AF XY:
0.0973
show subpopulations
Gnomad AFR exome
AF:
0.0119
Gnomad AMR exome
AF:
0.153
Gnomad ASJ exome
AF:
0.0921
Gnomad EAS exome
AF:
0.231
Gnomad FIN exome
AF:
0.0711
Gnomad NFE exome
AF:
0.0633
Gnomad OTH exome
AF:
0.0891
GnomAD4 exome
AF:
0.0745
AC:
107987
AN:
1450102
Hom.:
5338
Cov.:
31
AF XY:
0.0764
AC XY:
55116
AN XY:
721526
show subpopulations
African (AFR)
AF:
0.0107
AC:
353
AN:
33032
American (AMR)
AF:
0.153
AC:
6775
AN:
44224
Ashkenazi Jewish (ASJ)
AF:
0.0884
AC:
2279
AN:
25774
East Asian (EAS)
AF:
0.221
AC:
8665
AN:
39128
South Asian (SAS)
AF:
0.144
AC:
12371
AN:
85638
European-Finnish (FIN)
AF:
0.0733
AC:
3867
AN:
52734
Middle Eastern (MID)
AF:
0.0654
AC:
374
AN:
5716
European-Non Finnish (NFE)
AF:
0.0621
AC:
68593
AN:
1104120
Other (OTH)
AF:
0.0788
AC:
4710
AN:
59736
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.482
Heterozygous variant carriers
0
4500
9001
13501
18002
22502
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
2718
5436
8154
10872
13590
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0675
AC:
10179
AN:
150826
Hom.:
532
Cov.:
30
AF XY:
0.0706
AC XY:
5200
AN XY:
73610
show subpopulations
African (AFR)
AF:
0.0127
AC:
522
AN:
41064
American (AMR)
AF:
0.116
AC:
1757
AN:
15086
Ashkenazi Jewish (ASJ)
AF:
0.0887
AC:
307
AN:
3460
East Asian (EAS)
AF:
0.241
AC:
1222
AN:
5072
South Asian (SAS)
AF:
0.154
AC:
730
AN:
4754
European-Finnish (FIN)
AF:
0.0756
AC:
778
AN:
10286
Middle Eastern (MID)
AF:
0.0411
AC:
12
AN:
292
European-Non Finnish (NFE)
AF:
0.0679
AC:
4601
AN:
67802
Other (OTH)
AF:
0.0733
AC:
154
AN:
2100
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.513
Heterozygous variant carriers
0
461
922
1383
1844
2305
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
122
244
366
488
610
<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:
0.0653
Hom.:
760
Bravo
AF:
0.0663
Asia WGS
AF:
0.176
AC:
612
AN:
3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.44
CADD
Benign
6.6
DANN
Benign
0.77
PhyloP100
-0.070
Mutation Taster
=100/0
polymorphism (auto)

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

Other links and lift over

dbSNP: rs3740938; hg19: chr11-102587062; COSMIC: COSV52631649; API