chr16-55489099-T-C

Position:

• chr16-55489099-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_004530.6(MMP2):​c.1006+383T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.466 in 152,006 control chromosomes in the GnomAD database, including 16,449 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 0.47 (16449 hom., cov: 32)
• Consequence: MMP2 NM_004530.6 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.727

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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.494 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MMP2	NM_004530.6	c.1006+383T>C		intron_variant		ENST00000219070.9	NP_004521.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MMP2	ENST00000219070.9	c.1006+383T>C		intron_variant		1	NM_004530.6	ENSP00000219070.4

Frequencies

GnomAD3 genomes AF: 0.465 AC: 70689 AN: 151888 Hom.: 16416 Cov.: 32

Gnomad AFR AF: 0.481

Gnomad AMI AF: 0.568

Gnomad AMR AF: 0.503

Gnomad ASJ AF: 0.410

Gnomad EAS AF: 0.502

Gnomad SAS AF: 0.508

Gnomad FIN AF: 0.417

Gnomad MID AF: 0.446

Gnomad NFE AF: 0.450

Gnomad OTH AF: 0.471

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

GnomAD4 genome AF: 0.466 AC: 70763 AN: 152006 Hom.: 16449 Cov.: 32 AF XY: 0.466 AC XY: 34644 AN XY: 74296

Gnomad4 AFR AF: 0.482

Gnomad4 AMR AF: 0.504

Gnomad4 ASJ AF: 0.410

Gnomad4 EAS AF: 0.502

Gnomad4 SAS AF: 0.508

Gnomad4 FIN AF: 0.417

Gnomad4 NFE AF: 0.450

Gnomad4 OTH AF: 0.474

Alfa AF: 0.364 Hom.: 1578

Bravo AF: 0.472

Asia WGS AF: 0.523 AC: 1822 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	6.2
DANN	Benign	0.51

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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

Other links and lift over

dbSNP: rs9928731; hg19: chr16-55523011;