1-150511148-T-G

Position:

• chr1-150511148-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_004425.4(ECM1):​c.658T>G​(p.Cys220Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: ECM1 NM_004425.4 missense
• Clinical Significance: not provided no classification provided O:1
• Conservation: PhyloP100: 3.83

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 Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.993

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ECM1	NM_004425.4	c.658T>G	p.Cys220Gly	missense_variant	6/10	ENST00000369047.9
ECM1	NM_001202858.2	c.739T>G	p.Cys247Gly	missense_variant	6/10
ECM1	NM_022664.3	c.658T>G	p.Cys220Gly	missense_variant	6/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ECM1	ENST00000369047.9	c.658T>G	p.Cys220Gly	missense_variant	6/10	1	NM_004425.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

ClinVar

Significance: not provided

Submissions summary: Other:1

Revision: no classification provided

Submissions by phenotype

Lipid proteinosis Other:1

not provided, no classification provided

literature only

GeneReviews

-

In Chinese families [Zhang et al 2014] -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.81
BayesDel_addAF	Pathogenic	0.46	D
BayesDel_noAF	Pathogenic	0.42
CADD	Uncertain	25
DANN	Uncertain	0.98
DEOGEN2	Uncertain	0.62	.;D;.
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.58
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Benign	0.80	T;T;T
M_CAP	Uncertain	0.24	D
MetaRNN	Pathogenic	0.99	D;D;D
MetaSVM	Pathogenic	0.88	D
MutationAssessor	Uncertain	2.3	.;M;M
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Benign	0.42	T
PROVEAN	Pathogenic	-11	D;D;D
REVEL	Pathogenic	0.90
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		1.0	D;D;D
Vest4		0.98
MutPred		0.97		.;Loss of stability (P = 0.0279);Loss of stability (P = 0.0279);
MVP		1.0
MPC		0.58
ClinPred		1.0	D
GERP RS		5.0
Varity_R		0.94
gMVP		0.93

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs869025566; hg19: chr1-150483624;