rs758115595

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_005585.5(SMAD6):​c.1294C>G​(p.Pro432Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000313 in 1,598,890 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P432H) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

SMAD6
NM_005585.5 missense

Scores

11
5
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.04

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: Likely_pathogenic. The variant received 6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.942

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.1294C>Gp.Pro432Ala
missense
Exon 4 of 4NP_005576.3
SMAD6
NR_027654.2
n.2449C>G
non_coding_transcript_exon
Exon 5 of 5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMAD6
ENST00000288840.10
TSL:1 MANE Select
c.1294C>Gp.Pro432Ala
missense
Exon 4 of 4ENSP00000288840.5O43541-1
SMAD6
ENST00000966143.1
c.1216C>Gp.Pro406Ala
missense
Exon 3 of 3ENSP00000636202.1
SMAD6
ENST00000922587.1
c.1159C>Gp.Pro387Ala
missense
Exon 2 of 2ENSP00000592646.1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000441
AC:
1
AN:
226930
AF XY:
0.00000794
show subpopulations
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:
0.00000992
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000207
AC:
3
AN:
1446702
Hom.:
0
Cov.:
34
AF XY:
0.00000278
AC XY:
2
AN XY:
718726
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33266
American (AMR)
AF:
0.00
AC:
0
AN:
44436
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25922
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39460
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85998
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
45638
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.00000271
AC:
3
AN:
1106386
Other (OTH)
AF:
0.00
AC:
0
AN:
59838
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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
AF:
0.0000131
AC:
2
AN:
152188
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74352
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68024
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.450
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.00000845
AC:
1
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Uncertain significance
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)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.22
BayesDel_addAF
Pathogenic
0.48
D
BayesDel_noAF
Pathogenic
0.46
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.99
D
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.94
D
M_CAP
Pathogenic
0.54
D
MetaRNN
Pathogenic
0.94
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Uncertain
2.8
M
PhyloP100
6.0
PrimateAI
Pathogenic
0.80
T
PROVEAN
Pathogenic
-6.7
D
REVEL
Pathogenic
0.87
Sift
Benign
0.042
D
Sift4G
Uncertain
0.056
T
Polyphen
1.0
D
Vest4
0.78
MutPred
0.76
Loss of catalytic residue at P431 (P = 0.0096)
MVP
0.96
MPC
0.89
ClinPred
0.96
D
GERP RS
5.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.60
gMVP
0.46
Mutation Taster
=42/58
disease causing

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: rs758115595; hg19: chr15-67073676; API