rs17859821

Positions:

• chr16-55478141-G-A
• chr16-55478141-G-C
• chr16-55478141-G-T

Variant summary

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

The ENST00000570308.5(MMP2):​c.-75-4768G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.11 in 152,160 control chromosomes in the GnomAD database, including 1,090 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 0.11 (1090 hom., cov: 32)
• Consequence: MMP2 ENST00000570308.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.09

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]

(HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.95).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.251 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
		n.55478141G>A		intergenic_region

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MMP2	ENST00000570308.5	c.-75-4768G>A		intron_variant		1		ENSP00000461421.1

Frequencies

GnomAD3 genomes AF: 0.110 AC: 16760 AN: 152042 Hom.: 1091 Cov.: 32

Gnomad AFR AF: 0.0656

Gnomad AMI AF: 0.246

Gnomad AMR AF: 0.162

Gnomad ASJ AF: 0.141

Gnomad EAS AF: 0.262

Gnomad SAS AF: 0.112

Gnomad FIN AF: 0.0919

Gnomad MID AF: 0.180

Gnomad NFE AF: 0.112

Gnomad OTH AF: 0.140

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

GnomAD4 genome AF: 0.110 AC: 16758 AN: 152160 Hom.: 1090 Cov.: 32 AF XY: 0.111 AC XY: 8237 AN XY: 74400

Gnomad4 AFR AF: 0.0654

Gnomad4 AMR AF: 0.163

Gnomad4 ASJ AF: 0.141

Gnomad4 EAS AF: 0.263

Gnomad4 SAS AF: 0.112

Gnomad4 FIN AF: 0.0919

Gnomad4 NFE AF: 0.112

Gnomad4 OTH AF: 0.139

Alfa AF: 0.0817 Hom.: 193

Bravo AF: 0.117

Asia WGS AF: 0.168 AC: 584 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.95
CADD	Benign	0.43
DANN	Benign	0.80

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs17859821; hg19: chr16-55512053;