rs371330988

Variant summary

Our verdict is Benign. The variant received -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS1

The NM_005585.5(SMAD6):​c.336C>A​(p.Gly112Gly) variant causes a synonymous change. The variant allele was found at a frequency of 0.000226 in 1,227,948 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.0012 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000097 ( 0 hom. )

Consequence

SMAD6
NM_005585.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 4.11

Publications

0 publications found
Variant links:
Genes affected
SMAD6 (HGNC:6772): (SMAD family member 6) The protein encoded by this gene belongs to the SMAD family of proteins, which are related to Drosophila 'mothers against decapentaplegic' (Mad) and C. elegans Sma. SMAD proteins are signal transducers and transcriptional modulators that mediate multiple signaling pathways. This protein functions in the negative regulation of BMP and TGF-beta/activin-signalling. Multiple transcript variants have been found for this gene.[provided by RefSeq, Sep 2014]
SMAD6 Gene-Disease associations (from GenCC):
  • craniosynostosis 7
    Inheritance: AD, Unknown Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
  • radioulnar synostosis, nonsyndromic, susceptibility to
    Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics
  • aortic valve disease 2
    Inheritance: AD, Unknown Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • familial bicuspid aortic valve
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • congenital radioulnar synostosis
    Inheritance: AR, Unknown Classification: SUPPORTIVE, LIMITED Submitted by: Ambry Genetics, Orphanet
  • congenital heart defects, multiple types
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -16 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.58).
BP6
Variant 15-66703594-C-A is Benign according to our data. Variant chr15-66703594-C-A is described in ClinVar as Likely_benign. ClinVar VariationId is 471757.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00115 (174/151184) while in subpopulation AFR AF = 0.00398 (165/41440). AF 95% confidence interval is 0.00348. There are 0 homozygotes in GnomAd4. There are 81 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMAD6NM_005585.5 linkc.336C>A p.Gly112Gly synonymous_variant Exon 1 of 4 ENST00000288840.10 NP_005576.3
SMAD6NR_027654.2 linkn.1359C>A non_coding_transcript_exon_variant Exon 1 of 5
SMAD6XR_931827.3 linkn.1359C>A non_coding_transcript_exon_variant Exon 1 of 4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMAD6ENST00000288840.10 linkc.336C>A p.Gly112Gly synonymous_variant Exon 1 of 4 1 NM_005585.5 ENSP00000288840.5
SMAD6ENST00000557916.5 linkn.336C>A non_coding_transcript_exon_variant Exon 1 of 5 1 ENSP00000452955.1
SMAD6ENST00000612349.1 linkn.518C>A non_coding_transcript_exon_variant Exon 1 of 1 6

Frequencies

GnomAD3 genomes
AF:
0.00115
AC:
174
AN:
151076
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00399
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000264
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00241
GnomAD2 exomes
AF:
0.000323
AC:
3
AN:
9292
AF XY:
0.000200
show subpopulations
Gnomad AFR exome
AF:
0.00625
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000966
AC:
104
AN:
1076764
Hom.:
0
Cov.:
31
AF XY:
0.0000783
AC XY:
40
AN XY:
510626
show subpopulations
African (AFR)
AF:
0.00417
AC:
93
AN:
22276
American (AMR)
AF:
0.000370
AC:
3
AN:
8118
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
13274
East Asian (EAS)
AF:
0.00
AC:
0
AN:
25150
South Asian (SAS)
AF:
0.00
AC:
0
AN:
19764
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
28490
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2834
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
914468
Other (OTH)
AF:
0.000189
AC:
8
AN:
42390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.486
Heterozygous variant carriers
0
6
12
17
23
29
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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
AF:
0.00115
AC:
174
AN:
151184
Hom.:
0
Cov.:
33
AF XY:
0.00110
AC XY:
81
AN XY:
73914
show subpopulations
African (AFR)
AF:
0.00398
AC:
165
AN:
41440
American (AMR)
AF:
0.000263
AC:
4
AN:
15196
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3458
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5132
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10216
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
292
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67618
Other (OTH)
AF:
0.00239
AC:
5
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
7
15
22
30
37
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000208
Hom.:
0

ClinVar

Significance: Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

SMAD6-related disorder Benign:1
Mar 06, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Inborn genetic diseases Benign:1
Feb 20, 2022
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Aortic valve disease 2 Benign:1
Jan 08, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aortic valve disease 2;C4479496:Craniosynostosis 7 Benign:1
Jul 07, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.58
CADD
Benign
10
DANN
Benign
0.82
PhyloP100
4.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.9
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs371330988; hg19: chr15-66995932; API