chr14-70010807-C-T

Variant names:

• chr14-70010807-C-T
• rs376672665
• NM_001034852.3:c.718C>T

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_001034852.3(SMOC1):​c.718C>T​(p.Gln240*) variant causes a stop gained 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 Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: SMOC1 NM_001034852.3 stop_gained
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 6.00
• Publications: 2 publications found

Genes affected

SMOC1 (HGNC:20318): (SPARC related modular calcium binding 1) This gene encodes a multi-domain secreted protein that may have a critical role in ocular and limb development. Mutations in this gene are associated with microphthalmia and limb anomalies. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2011]

SMOC1 Gene-Disease associations (from GenCC):

• microphthalmia with limb anomalies

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, G2P, Orphanet, Labcorp Genetics (formerly Invitae)

ACMG classification

Our verdict: Pathogenic. The variant received 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 14-70010807-C-T is Pathogenic according to our data. Variant chr14-70010807-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 30726.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMOC1	NM_001034852.3	c.718C>T	p.Gln240*	stop_gained	Exon 8 of 12	ENST00000361956.8	NP_001030024.1
SMOC1	NM_001425244.1	c.751C>T	p.Gln251*	stop_gained	Exon 8 of 12		NP_001412173.1
SMOC1	NM_001425245.1	c.751C>T	p.Gln251*	stop_gained	Exon 8 of 12		NP_001412174.1
SMOC1	NM_022137.6	c.718C>T	p.Gln240*	stop_gained	Exon 8 of 12		NP_071420.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SMOC1	ENST00000361956.8	c.718C>T	p.Gln240*	stop_gained	Exon 8 of 12	1	NM_001034852.3	ENSP00000355110.4
SMOC1	ENST00000381280.4	c.718C>T	p.Gln240*	stop_gained	Exon 8 of 12	1		ENSP00000370680.4
SMOC1	ENST00000557483.1	n.296C>T		non_coding_transcript_exon_variant	Exon 2 of 3	5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Microphthalmia with limb anomalies Pathogenic:1

Jan 07, 2011

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	0.63	D
BayesDel_noAF	Pathogenic	0.60
CADD	Pathogenic	39
DANN	Uncertain	1.0
Eigen	Pathogenic	0.85
Eigen_PC	Pathogenic	0.70
FATHMM_MKL	Uncertain	0.94	D
PhyloP100		6.0
Vest4		0.52
GERP RS		5.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=1/199	disease causing (ClinVar)

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: rs376672665; hg19: chr14-70477524;