chr11-102791398-G-C

Position:

• chr11-102791398-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_002421.4(MMP1):​c.1131C>G​(p.Ile377Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000889 in 1,461,718 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000089 (0 hom.)
• Consequence: MMP1 NM_002421.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -1.63

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]

MMP1 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.938

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MMP1	NM_002421.4	c.1131C>G	p.Ile377Met	missense_variant	8/10	ENST00000315274.7	NP_002412.1
MMP1	NM_001145938.2	c.933C>G	p.Ile311Met	missense_variant	8/10		NP_001139410.1
WTAPP1	NR_038390.1	n.390-1747G>C		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
MMP1	ENST00000315274.7	c.1131C>G	p.Ile377Met	missense_variant	8/10	1	NM_002421.4	ENSP00000322788.6

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000889 AC: 13 AN: 1461718 Hom.: 0 Cov.: 31 AF XY: 0.00000550 AC XY: 4 AN XY: 727168

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000117

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 26, 2024

The c.1131C>G (p.I377M) alteration is located in exon 8 (coding exon 8) of the MMP1 gene. This alteration results from a C to G substitution at nucleotide position 1131, causing the isoleucine (I) at amino acid position 377 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	12
DANN	Uncertain	0.99
DEOGEN2	Benign	0.38	T
Eigen	Benign	-0.56
Eigen_PC	Benign	-0.87
FATHMM_MKL	Benign	0.094	N
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.026	D
MetaRNN	Pathogenic	0.94	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Pathogenic	3.4	M
PrimateAI	Benign	0.42	T
PROVEAN	Uncertain	-2.7	D
REVEL	Benign	0.23
Sift	Uncertain	0.0010	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.67
MutPred		0.82		Gain of disorder (P = 0.0458);
MVP		0.25
MPC		0.041
ClinPred		0.99	D
GERP RS		-7.9
Varity_R		0.75
gMVP		0.83

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-102662129;