rs121909114

Variant names:

• chr1-150511784-C-T
• rs121909114
• NM_004425.4:c.1036C>T

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_004425.4(ECM1):​c.1036C>T​(p.Gln346*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,026 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: ECM1 NM_004425.4 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 0.949

Genes affected

ECM1 (HGNC:3153): (extracellular matrix protein 1) This gene encodes a soluble protein that is involved in endochondral bone formation, angiogenesis, and tumor biology. It also interacts with a variety of extracellular and structural proteins, contributing to the maintenance of skin integrity and homeostasis. Mutations in this gene are associated with lipoid proteinosis disorder (also known as hyalinosis cutis et mucosae or Urbach-Wiethe disease) that is characterized by generalized thickening of skin, mucosae and certain viscera. Alternatively spliced transcript variants encoding distinct isoforms have been described for this gene. [provided by RefSeq, Feb 2011]

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 1-150511784-C-T is Pathogenic according to our data. Variant chr1-150511784-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 7472.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ECM1	NM_004425.4	c.1036C>T	p.Gln346*	stop_gained	Exon 7 of 10	ENST00000369047.9	NP_004416.2
ECM1	NM_001202858.2	c.1117C>T	p.Gln373*	stop_gained	Exon 7 of 10		NP_001189787.1
ECM1	NM_022664.3	c.709-568C>T		intron_variant	Intron 6 of 8		NP_073155.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ECM1	ENST00000369047.9	c.1036C>T	p.Gln346*	stop_gained	Exon 7 of 10	1	NM_004425.4	ENSP00000358043.4
ECM1	ENST00000346569.6	c.709-568C>T		intron_variant	Intron 6 of 8	1		ENSP00000271630.6
ECM1	ENST00000369049.8	c.1117C>T	p.Gln373*	stop_gained	Exon 7 of 10	2		ENSP00000358045.4
ECM1	ENST00000470432.5	n.2393C>T		non_coding_transcript_exon_variant	Exon 3 of 6	2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD3 exomes AF: 0.00000799 AC: 2 AN: 250160 Hom.: 0 AF XY: 0.0000148 AC XY: 2 AN XY: 135324

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000654

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461026 Hom.: 0 Cov.: 34 AF XY: 0.00000413 AC XY: 3 AN XY: 726704

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: 0.0000348

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 31

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Lipid proteinosis Pathogenic:1

Apr 01, 2002

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.47	D
BayesDel_noAF	Pathogenic	0.54
CADD	Pathogenic	36
DANN	Uncertain	1.0
Eigen	Pathogenic	0.75
Eigen_PC	Uncertain	0.57
FATHMM_MKL	Benign	0.74	D
Vest4		0.74
GERP RS		3.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.070		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: rs121909114; hg19: chr1-150484260;