NM_002421.4:c.573dupT

Variant names:

• chr11-102796715-C-CA
• rs17879749
• NM_002421.4:c.573dupT

Variant summary

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

The NM_002421.4(MMP1):​c.573dupT​(p.Gly192TrpfsTer7) 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: 33)
• Consequence: MMP1 NM_002421.4 frameshift
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.48
• Publications: 12 publications found

Genes affected

MMP1 (HGNC:7155): (matrix metallopeptidase 1) 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 secreted protease breaks down the interstitial collagens, including types I, II, and III. The gene is part of a cluster of MMP genes on chromosome 11. Mutations in this gene are associated with chronic obstructive pulmonary disease (COPD). Alternative splicing results in multiple transcript variants, at least one of which encodes an isoform that is proteolytically processed. [provided by RefSeq, Jan 2016]

WTAPP1 (HGNC:):

WTAPP1 (HGNC:44115): (WTAP pseudogene 1)

ACMG classification

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

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

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MMP1	NM_002421.4	c.573dupT	p.Gly192TrpfsTer7	frameshift_variant	Exon 4 of 10	ENST00000315274.7	NP_002412.1
MMP1	NM_001145938.2	c.375dupT	p.Gly126TrpfsTer7	frameshift_variant	Exon 4 of 10		NP_001139410.1
WTAPP1	NR_038390.1	n.584-1307dupA		intron_variant	Intron 3 of 7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MMP1	ENST00000315274.7	c.573dupT	p.Gly192TrpfsTer7	frameshift_variant	Exon 4 of 10	1	NM_002421.4	ENSP00000322788.6

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 12

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		-1.5

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: rs17879749; hg19: chr11-102667446;