rs139719094

Variant summary

Our verdict is Benign. The variant received -15 ACMG points: 0P and 15B. BP4_ModerateBP6_Very_StrongBP7BS1

The NM_005585.5(SMAD6):​c.909G>A​(p.Thr303Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000168 in 1,613,914 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00097 ( 1 hom., cov: 32)
Exomes 𝑓: 0.000085 ( 1 hom. )

Consequence

SMAD6
NM_005585.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.285

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):
  • 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 -15 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.38).
BP6
Variant 15-66716455-G-A is Benign according to our data. Variant chr15-66716455-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 240182.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.285 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000965 (147/152314) while in subpopulation AFR AF = 0.0033 (137/41566). AF 95% confidence interval is 0.00285. There are 1 homozygotes in GnomAd4. There are 73 alleles in the male GnomAd4 subpopulation. Median coverage is 32. 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.909G>Ap.Thr303Thr
synonymous
Exon 3 of 4NP_005576.3
SMAD6
NR_027654.2
n.1932G>A
non_coding_transcript_exon
Exon 3 of 5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMAD6
ENST00000288840.10
TSL:1 MANE Select
c.909G>Ap.Thr303Thr
synonymous
Exon 3 of 4ENSP00000288840.5O43541-1
SMAD6
ENST00000557916.5
TSL:1
n.909G>A
non_coding_transcript_exon
Exon 3 of 5ENSP00000452955.1O43541-4
SMAD6
ENST00000558937.1
TSL:5
c.63G>Ap.Thr21Thr
synonymous
Exon 2 of 3ENSP00000452694.1H0YK80

Frequencies

GnomAD3 genomes
AF:
0.000966
AC:
147
AN:
152196
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00331
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000458
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:
0.0000147
Gnomad OTH
AF:
0.000956
GnomAD2 exomes
AF:
0.000247
AC:
62
AN:
251492
AF XY:
0.000235
show subpopulations
Gnomad AFR exome
AF:
0.00308
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000848
AC:
124
AN:
1461600
Hom.:
1
Cov.:
30
AF XY:
0.0000715
AC XY:
52
AN XY:
727126
show subpopulations
African (AFR)
AF:
0.00275
AC:
92
AN:
33476
American (AMR)
AF:
0.0000671
AC:
3
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000180
AC:
20
AN:
1111732
Other (OTH)
AF:
0.0000993
AC:
6
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.464
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
Exome Hom
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:
0.000965
AC:
147
AN:
152314
Hom.:
1
Cov.:
32
AF XY:
0.000980
AC XY:
73
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.00330
AC:
137
AN:
41566
American (AMR)
AF:
0.000457
AC:
7
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68024
Other (OTH)
AF:
0.000946
AC:
2
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.498
Heterozygous variant carriers
0
8
16
25
33
41
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:
0.000543
Hom.:
1
Bravo
AF:
0.000952
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Benign/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 specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.38
CADD
Benign
6.4
DANN
Benign
0.71
PhyloP100
-0.28
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=99/1
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: rs139719094; hg19: chr15-67008793; API