11-102868062-GT-GTT

Variant names:

• chr11-102868062-G-GT
• rs5794199
• NM_002426.6:c.632dupA

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_002426.6(MMP12):​c.632dupA​(p.Asn211LysfsTer20) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: MMP12 NM_002426.6 frameshift
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.04
• Publications: 16 publications found

Genes affected

MMP12 (HGNC:7158): (matrix metallopeptidase 12) This gene encodes a member of the peptidase M10 family of matrix metalloproteinases (MMPs). Proteins in this family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. The encoded preproprotein is proteolytically processed to generate the mature protease. This protease degrades soluble and insoluble elastin. This gene may play a role in aneurysm formation and mutations in this gene are associated with lung function and chronic obstructive pulmonary disease (COPD). This gene is part of a cluster of MMP genes on chromosome 11. [provided by RefSeq, Jan 2016]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002426.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MMP12	NM_002426.6	MANE Select	c.632dupA	p.Asn211LysfsTer20	frameshift	Exon 5 of 10	NP_002417.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MMP12	ENST00000571244.3	TSL:1 MANE Select	c.632dupA	p.Asn211LysfsTer20	frameshift	Exon 5 of 10	ENSP00000458585.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 1.00 AC: 218308 AN: 218314 AF XY: 1.00

Gnomad AFR exome AF: 1.00

Gnomad AMR exome AF: 1.00

Gnomad ASJ exome AF: 1.00

Gnomad EAS exome AF: 1.00

Gnomad FIN exome AF: 1.00

Gnomad NFE exome AF: 1.00

Gnomad OTH exome AF: 1.00

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 1.00 Hom.: 6766

Asia WGS AF: 1.00 AC: 3478 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		2.0

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: rs5794199; hg19: chr11-102738793; COSMIC: COSV58259096;