7-129211755-C-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PM2PP3_ModerateBS1_Supporting

The NM_005631.5(SMO):c.1921C>G(p.Pro641Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000657 in 1,613,958 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00069 ( 1 hom. )

Consequence

SMO
NM_005631.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1O:1

Conservation

PhyloP100: 7.40

Variant links:

Genes affected

SMO (HGNC:11119): (smoothened, frizzled class receptor) The protein encoded by this gene is a G protein-coupled receptor that interacts with the patched protein, a receptor for hedgehog proteins. The encoded protein tranduces signals to other proteins after activation by a hedgehog protein/patched protein complex. [provided by RefSeq, Jul 2010]

SMO links:

ENSG00000243230 (HGNC:):

ENSG00000243230 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.845

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000388 (59/152132) while in subpopulation NFE AF= 0.000735 (50/68030). AF 95% confidence interval is 0.000572. There are 0 homozygotes in gnomad4. There are 25 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SMO	NM_005631.5 link	c.1921C>G	p.Pro641Ala	missense_variant	Exon 11 of 12	ENST00000249373.8	NP_005622.1	Q99835
SMO	XM_047420759.1 link	c.1531C>G	p.Pro511Ala	missense_variant	Exon 12 of 13		XP_047276715.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SMO	ENST00000249373.8 link	c.1921C>G	p.Pro641Ala	missense_variant	Exon 11 of 12	1	NM_005631.5	ENSP00000249373.3		Q99835

Frequencies

GnomAD3 genomes

AF:

0.000388

AC:

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000735

Gnomad OTH

AF:

0.000959

GnomAD3 exomes

AF:

0.000430

AC:

108

AN:

251432

Hom.:

AF XY:

0.000368

AC XY:

AN XY:

135898

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000925

Gnomad NFE exome

AF:

0.000721

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.000685

AC:

1002

AN:

1461826

Hom.:

Cov.:

AF XY:

0.000681

AC XY:

495

AN XY:

727214

show subpopulations

Gnomad4 AFR exome

AF:

0.000119

Gnomad4 AMR exome

AF:

0.000581

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.000131

Gnomad4 NFE exome

AF:

0.000827

Gnomad4 OTH exome

AF:

0.000745

GnomAD4 genome

AF:

0.000388

AC:

AN:

152132

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74320

show subpopulations

Gnomad4 AFR

AF:

0.000121

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000735

Gnomad4 OTH

AF:

0.000959

Alfa

AF:

0.000702

Hom.:

Bravo

AF:

0.000491

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000814

AC:

ExAC

AF:

0.000371

AC:

EpiCase

AF:

0.000872

EpiControl

AF:

0.000533

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1Other:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jun 08, 2023

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Reported in families with variable cancer phenotypes including medulloblastoma, nonsmall-cell lung cancer, and colorectal cancer; suggested as a cancer susceptibility variant (Kool et al., 2014; Tsao et al., 2017; Toma et al., 2020); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: Tsao2017[Abstract], Tsao2017[CaseReport], 24728327, 24651015, 31525256, 27535533) -

not specified

Other:1

Sep 19, 2013

ITMI

Significance: not provided

Review Status: no classification provided

Collection Method: reference population

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Benign

-0.090

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.68

Eigen

Pathogenic

0.81

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.92

M_CAP

Pathogenic

0.56

MetaRNN

Pathogenic

0.85

MetaSVM

Uncertain

0.35

MutationAssessor

Benign

1.5

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-2.2

REVEL

Pathogenic

0.83

Sift

Uncertain

0.017

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.86

MVP

0.93

MPC

0.20

ClinPred

0.18

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.17

gMVP

0.36

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over