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chr7-129203436-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_005631.5(SMO):​c.384C>T​(p.Ala128=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0129 in 1,565,174 control chromosomes in the GnomAD database, including 163 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0091 ( 12 hom., cov: 32)
Exomes 𝑓: 0.013 ( 151 hom. )

Consequence

SMO
NM_005631.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -1.63
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.31).
BP6
Variant 7-129203436-C-T is Benign according to our data. Variant chr7-129203436-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1217539.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.63 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00908 (1383/152304) while in subpopulation NFE AF= 0.0142 (964/68022). AF 95% confidence interval is 0.0134. There are 12 homozygotes in gnomad4. There are 609 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 12 SM gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMONM_005631.5 linkuse as main transcriptc.384C>T p.Ala128= synonymous_variant 2/12 ENST00000249373.8
SMOXM_047420759.1 linkuse as main transcriptc.-7C>T 5_prime_UTR_variant 3/13

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMOENST00000249373.8 linkuse as main transcriptc.384C>T p.Ala128= synonymous_variant 2/121 NM_005631.5 P1
SMOENST00000655644.1 linkuse as main transcriptc.*248C>T 3_prime_UTR_variant, NMD_transcript_variant 3/12

Frequencies

GnomAD3 genomes
AF:
0.00909
AC:
1383
AN:
152186
Hom.:
12
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00207
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00583
Gnomad ASJ
AF:
0.0236
Gnomad EAS
AF:
0.000192
Gnomad SAS
AF:
0.00663
Gnomad FIN
AF:
0.0105
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0142
Gnomad OTH
AF:
0.00766
GnomAD3 exomes
AF:
0.00941
AC:
1645
AN:
174906
Hom.:
20
AF XY:
0.00951
AC XY:
886
AN XY:
93196
show subpopulations
Gnomad AFR exome
AF:
0.00134
Gnomad AMR exome
AF:
0.00375
Gnomad ASJ exome
AF:
0.0214
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00824
Gnomad FIN exome
AF:
0.00888
Gnomad NFE exome
AF:
0.0133
Gnomad OTH exome
AF:
0.0123
GnomAD4 exome
AF:
0.0134
AC:
18880
AN:
1412870
Hom.:
151
Cov.:
32
AF XY:
0.0132
AC XY:
9209
AN XY:
698412
show subpopulations
Gnomad4 AFR exome
AF:
0.00173
Gnomad4 AMR exome
AF:
0.00443
Gnomad4 ASJ exome
AF:
0.0208
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00845
Gnomad4 FIN exome
AF:
0.0106
Gnomad4 NFE exome
AF:
0.0149
Gnomad4 OTH exome
AF:
0.0131
GnomAD4 genome
AF:
0.00908
AC:
1383
AN:
152304
Hom.:
12
Cov.:
32
AF XY:
0.00818
AC XY:
609
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.00207
Gnomad4 AMR
AF:
0.00582
Gnomad4 ASJ
AF:
0.0236
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00684
Gnomad4 FIN
AF:
0.0105
Gnomad4 NFE
AF:
0.0142
Gnomad4 OTH
AF:
0.00758
Alfa
AF:
0.0129
Hom.:
9
Bravo
AF:
0.00877
Asia WGS
AF:
0.00202
AC:
7
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitterclinical testingGeneDxSep 15, 2020- -
Benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenFeb 01, 2024SMO: BP4, BP7, BS1, BS2 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.31
CADD
Benign
2.0
DANN
Benign
0.85

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

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

Other links and lift over

dbSNP: rs45571737; hg19: chr7-128843277; COSMIC: COSV99976580; COSMIC: COSV99976580; API