chr16-55492964-G-A

Variant names:

• chr16-55492964-G-A
• rs243844
• NM_004530.6:c.1337-194G>A

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BA1

The NM_004530.6(MMP2):​c.1337-194G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.364 in 151,968 control chromosomes in the GnomAD database, including 10,109 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

• Frequency: Genomes: 𝑓 0.36 (10109 hom., cov: 31)
• Consequence: MMP2 NM_004530.6 intron
• Clinical Significance: Benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.960
• Publications: 3 publications found

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

ACMG classification

Our verdict: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BP6: Variant 16-55492964-G-A is Benign according to our data. Variant chr16-55492964-G-A is described in ClinVar as Benign. ClinVar VariationId is 1251050.Status of the report is criteria_provided_single_submitter, 1 stars.
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.38 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MMP2	NM_004530.6	c.1337-194G>A		intron_variant	Intron 8 of 12	ENST00000219070.9	NP_004521.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MMP2	ENST00000219070.9	c.1337-194G>A		intron_variant	Intron 8 of 12	1	NM_004530.6	ENSP00000219070.4

Frequencies

GnomAD3 genomes AF: 0.364 AC: 55242 AN: 151848 Hom.: 10105 Cov.: 31

Gnomad AFR AF: 0.331

Gnomad AMI AF: 0.290

Gnomad AMR AF: 0.315

Gnomad ASJ AF: 0.458

Gnomad EAS AF: 0.285

Gnomad SAS AF: 0.387

Gnomad FIN AF: 0.449

Gnomad MID AF: 0.282

Gnomad NFE AF: 0.383

Gnomad OTH AF: 0.335

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.364 AC: 55259 AN: 151968 Hom.: 10109 Cov.: 31 AF XY: 0.367 AC XY: 27256 AN XY: 74288

African (AFR) AF: 0.330 AC: 13685 AN: 41442

American (AMR) AF: 0.315 AC: 4810 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.458 AC: 1586 AN: 3462

East Asian (EAS) AF: 0.285 AC: 1470 AN: 5162

South Asian (SAS) AF: 0.387 AC: 1866 AN: 4818

European-Finnish (FIN) AF: 0.449 AC: 4736 AN: 10542

Middle Eastern (MID) AF: 0.289 AC: 85 AN: 294

European-Non Finnish (NFE) AF: 0.384 AC: 26059 AN: 67950

Other (OTH) AF: 0.331 AC: 698 AN: 2108

Alfa AF: 0.373 Hom.: 1167

Bravo AF: 0.352

Asia WGS AF: 0.313 AC: 1088 AN: 3478

ClinVar

Significance: Benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Benign:1

Nov 12, 2018

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
BayesDel_noAF	Benign	-0.86
CADD	Benign	4.1
DANN	Benign	0.68
PhyloP100		0.96
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

Other links and lift over

dbSNP: rs243844; hg19: chr16-55526876;