Genetic Variant SMOC1:p.Gln240Glu (chr14-70010807-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001034852.3(SMOC1):c.718C>G(p.Gln240Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign 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: 6.8e-7 ( 0 hom. )

Consequence

SMOC1
NM_001034852.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.00

Publications

0 publications found

Variant links:

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)

SMOC1 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2703482).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMOC1	NM_001034852.3 link	c.718C>G	p.Gln240Glu	missense_variant	Exon 8 of 12	ENST00000361956.8	NP_001030024.1	Q9H4F8-2
SMOC1	NM_001425244.1 link	c.751C>G	p.Gln251Glu	missense_variant	Exon 8 of 12		NP_001412173.1
SMOC1	NM_001425245.1 link	c.751C>G	p.Gln251Glu	missense_variant	Exon 8 of 12		NP_001412174.1
SMOC1	NM_022137.6 link	c.718C>G	p.Gln240Glu	missense_variant	Exon 8 of 12		NP_071420.1	Q9H4F8-1A0A024R6E0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SMOC1	ENST00000361956.8 link	c.718C>G	p.Gln240Glu	missense_variant	Exon 8 of 12	1	NM_001034852.3	ENSP00000355110.4	Q9H4F8-2
SMOC1	ENST00000381280.4 link	c.718C>G	p.Gln240Glu	missense_variant	Exon 8 of 12	1		ENSP00000370680.4	Q9H4F8-1
SMOC1	ENST00000557483.1 link	n.296C>G		non_coding_transcript_exon_variant	Exon 2 of 3	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461876

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727240

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1112004

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.098

BayesDel_addAF

Benign

-0.083

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

.;T

Eigen

Benign

0.028

Eigen_PC

Benign

0.15

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.93

D;D

M_CAP

Benign

0.030

MetaRNN

Benign

0.27

T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

1.7

L;L

PhyloP100

6.0

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-1.9

N;N

REVEL

Benign

0.15

Sift

Uncertain

0.014

D;D

Sift4G

Benign

0.18

T;T

Polyphen

0.70

P;B

Vest4

0.27

MutPred

0.47

Gain of disorder (P = 0.1492);Gain of disorder (P = 0.1492);

MVP

0.84

MPC

0.60

ClinPred

0.90

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.22

gMVP

0.63

Mutation Taster

=63/37

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.040

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over