chr16-55479516-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_004530.6(MMP2):c.37C>T(p.Pro13Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000406 in 1,602,458 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P13R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00019 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MMP2
NM_004530.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.20

Publications

0 publications found

Variant links:

Genes affected

MMP2 (HGNC:7166): (matrix metallopeptidase 2) This gene is a member of the matrix metalloproteinase (MMP) gene family, that are zinc-dependent enzymes capable of cleaving components of the extracellular matrix and molecules involved in signal transduction. The protein encoded by this gene is a gelatinase A, type IV collagenase, that contains three fibronectin type II repeats in its catalytic site that allow binding of denatured type IV and V collagen and elastin. Unlike most MMP family members, activation of this protein can occur on the cell membrane. This enzyme can be activated extracellularly by proteases, or, intracellulary by its S-glutathiolation with no requirement for proteolytical removal of the pro-domain. This protein is thought to be involved in multiple pathways including roles in the nervous system, endometrial menstrual breakdown, regulation of vascularization, and metastasis. Mutations in this gene have been associated with Winchester syndrome and Nodulosis-Arthropathy-Osteolysis (NAO) syndrome. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Oct 2014]

MMP2 Gene-Disease associations (from GenCC):

multicentric osteolysis, nodulosis, and arthropathy
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
multicentric osteolysis-nodulosis-arthropathy spectrum
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

MMP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.017710596).

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000191 (29/152136) while in subpopulation AFR AF = 0.000676 (28/41448). AF 95% confidence interval is 0.000479. There are 0 homozygotes in GnomAd4. There are 14 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MMP2	NM_004530.6 link	c.37C>T	p.Pro13Ser	missense_variant	Exon 1 of 13	ENST00000219070.9	NP_004521.1	P08253-1A0A024R6R4
MMP2	NM_001302508.1 link	c.-76+551C>T		intron_variant	Intron 1 of 12		NP_001289437.1	P08253-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
MMP2	ENST00000219070.9 link	c.37C>T	p.Pro13Ser	missense_variant	Exon 1 of 13	1	NM_004530.6	ENSP00000219070.4	P08253-1
MMP2	ENST00000570308.5 link	c.-75-3393C>T		intron_variant	Intron 2 of 13	1		ENSP00000461421.1	P08253-2
MMP2	ENST00000568715.5 link	c.-76+551C>T		intron_variant	Intron 1 of 3	4		ENSP00000457949.1	H3BV48

Frequencies

GnomAD3 genomes

AF:

0.000191

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000676

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000540

AC:

AN:

222310

AF XY:

0.0000490

show subpopulations

Gnomad AFR exome

AF:

0.000880

Gnomad AMR exome

AF:

0.0000306

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000248

AC:

AN:

1450322

Hom.:

Cov.:

AF XY:

0.0000278

AC XY:

AN XY:

720652

show subpopulations

African (AFR)

AF:

0.00102

AC:

AN:

33226

American (AMR)

AF:

0.0000230

AC:

AN:

43454

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25850

East Asian (EAS)

AF:

0.00

AC:

AN:

39156

South Asian (SAS)

AF:

0.00

AC:

AN:

84980

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51006

Middle Eastern (MID)

AF:

0.000175

AC:

AN:

5724

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1107116

Other (OTH)

AF:

0.00

AC:

AN:

59810

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.514

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000191

AC:

AN:

152136

Hom.:

Cov.:

AF XY:

0.000188

AC XY:

AN XY:

74334

show subpopulations

African (AFR)

AF:

0.000676

AC:

AN:

41448

American (AMR)

AF:

0.0000654

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5154

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000113

Hom.:

Bravo

AF:

0.000242

ExAC

AF:

0.0000499

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jul 06, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 13 of the MMP2 protein (p.Pro13Ser). This variant is present in population databases (rs780763772, gnomAD 0.08%). This variant has not been reported in the literature in individuals affected with MMP2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1348855). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.60

BayesDel_noAF

Benign

-0.70

CADD

Benign

0.22

(source)

DANN

Benign

0.87

DEOGEN2

Benign

0.16

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.3

FATHMM_MKL

Benign

0.078

LIST_S2

Benign

0.54

M_CAP

Benign

0.053

MetaRNN

Benign

0.018

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PhyloP100

-1.2

PrimateAI

Uncertain

0.68

PROVEAN

Benign

-0.12

REVEL

Benign

0.014

Sift

Benign

0.23

Sift4G

Benign

0.31

Polyphen

0.0020

Vest4

0.16

MVP

0.20

MPC

0.32

ClinPred

0.011

GERP RS

-1.6

PromoterAI

0.0028

Neutral

(source)

Varity_R

0.020

gMVP

0.39

Mutation Taster

=73/27

polymorphism

(source)

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

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chr16-55479516-C-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over