rs587778689

Variant summary

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

The NM_005631.5(SMO):​c.2344G>A​(p.Asp782Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,192 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as not provided (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

SMO
NM_005631.5 missense

Scores

4
8
7

Clinical Significance

not provided no classification provided O:1

Conservation

PhyloP100: 8.73

Publications

2 publications found
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 Gene-Disease associations (from GenCC):
  • Curry-Jones syndrome
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, G2P
  • congenital hypothalamic hamartoma syndrome
    Inheritance: AR Classification: STRONG, MODERATE Submitted by: G2P, Ambry Genetics, ClinGen
  • Hirschsprung disease
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • medulloblastoma
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

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=0.36465076).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMONM_005631.5 linkc.2344G>A p.Asp782Asn missense_variant Exon 12 of 12 ENST00000249373.8 NP_005622.1 Q99835
SMOXM_047420759.1 linkc.1954G>A p.Asp652Asn missense_variant Exon 13 of 13 XP_047276715.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMOENST00000249373.8 linkc.2344G>A p.Asp782Asn missense_variant Exon 12 of 12 1 NM_005631.5 ENSP00000249373.3 Q99835
SMOENST00000655644.1 linkn.*2099G>A non_coding_transcript_exon_variant Exon 12 of 12 ENSP00000499377.1 A0A590UJE7
SMOENST00000655644.1 linkn.*2099G>A 3_prime_UTR_variant Exon 12 of 12 ENSP00000499377.1 A0A590UJE7
ENSG00000243230ENST00000466717.1 linkn.129+986C>T intron_variant Intron 1 of 1 3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1459192
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
725328
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000299
AC:
1
AN:
33412
American (AMR)
AF:
0.00
AC:
0
AN:
44672
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26102
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39600
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86222
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53062
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1110112
Other (OTH)
AF:
0.00
AC:
0
AN:
60248
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: not provided
Submissions summary: Other:1
Revision: no classification provided
LINK: link

Submissions by phenotype

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
0.16
BayesDel_addAF
Benign
-0.012
T
BayesDel_noAF
Benign
-0.25
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.52
D
Eigen
Uncertain
0.41
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.91
D
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.36
T
MetaSVM
Uncertain
-0.13
T
MutationAssessor
Benign
1.8
L
PhyloP100
8.7
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-0.59
N
REVEL
Uncertain
0.40
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.68
P
Vest4
0.36
MutPred
0.36
Gain of catalytic residue at D782 (P = 0.0222);
MVP
0.84
MPC
0.32
ClinPred
0.97
D
GERP RS
5.2
Varity_R
0.47
gMVP
0.55
Mutation Taster
=61/39
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs587778689; hg19: chr7-128852272; API