rs937555039

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS1

The NM_005585.5(SMAD6):​c.240G>A​(p.Ala80Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000863 in 1,228,688 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 (★★). Synonymous variant affecting the same amino acid position (i.e. A80A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000077 ( 0 hom. )

Consequence

SMAD6
NM_005585.5 synonymous

Scores

2

Clinical Significance

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

Conservation

PhyloP100: 0.133

Publications

1 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):
  • syndromic craniosynostosis
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • craniosynostosis 7
    Inheritance: AD, Unknown Classification: STRONG, MODERATE, LIMITED Submitted by: PanelApp Australia, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae)
  • radioulnar synostosis, nonsyndromic, susceptibility to
    Inheritance: AD Classification: STRONG Submitted by: PanelApp Australia, Ambry Genetics
  • aortic valve disease 2
    Inheritance: Unknown, AD Classification: MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
  • 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 -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 15-66703498-G-A is Benign according to our data. Variant chr15-66703498-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 471754.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.133 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000152 (23/151472) while in subpopulation EAS AF = 0.00235 (12/5110). AF 95% confidence interval is 0.00135. There are 0 homozygotes in GnomAd4. There are 8 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005585.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMAD6
NM_005585.5
MANE Select
c.240G>Ap.Ala80Ala
synonymous
Exon 1 of 4NP_005576.3
SMAD6
NR_027654.2
n.1263G>A
non_coding_transcript_exon
Exon 1 of 5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMAD6
ENST00000288840.10
TSL:1 MANE Select
c.240G>Ap.Ala80Ala
synonymous
Exon 1 of 4ENSP00000288840.5O43541-1
SMAD6
ENST00000557916.5
TSL:1
n.240G>A
non_coding_transcript_exon
Exon 1 of 5ENSP00000452955.1O43541-4
SMAD6
ENST00000966143.1
c.240G>Ap.Ala80Ala
synonymous
Exon 1 of 3ENSP00000636202.1

Frequencies

GnomAD3 genomes
AF:
0.000145
AC:
22
AN:
151364
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000526
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00234
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000482
GnomAD2 exomes
AF:
0.00
AC:
0
AN:
6300
AF XY:
0.00
Gnomad AFR exome
AF:
0.00
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:
0.0000771
AC:
83
AN:
1077216
Hom.:
0
Cov.:
31
AF XY:
0.0000687
AC XY:
35
AN XY:
509680
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
22294
American (AMR)
AF:
0.00
AC:
0
AN:
7916
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
13590
East Asian (EAS)
AF:
0.00262
AC:
66
AN:
25232
South Asian (SAS)
AF:
0.00
AC:
0
AN:
19584
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
28910
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2836
European-Non Finnish (NFE)
AF:
0.00000328
AC:
3
AN:
914210
Other (OTH)
AF:
0.000328
AC:
14
AN:
42644
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.512
Heterozygous variant carriers
0
8
15
23
30
38
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
AF:
0.000152
AC:
23
AN:
151472
Hom.:
0
Cov.:
33
AF XY:
0.000108
AC XY:
8
AN XY:
74036
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41456
American (AMR)
AF:
0.000525
AC:
8
AN:
15232
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.00235
AC:
12
AN:
5110
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10322
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
290
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67754
Other (OTH)
AF:
0.000953
AC:
2
AN:
2098
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.00
Hom.:
0
Bravo
AF:
0.000166

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Aortic valve disease 2 (1)
-
-
1
Inborn genetic diseases (1)
-
-
1
not provided (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
8.1
DANN
Benign
0.95
PhyloP100
0.13
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
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: rs937555039; hg19: chr15-66995836; API