rs887913905

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_005585.5(SMAD6):​c.262G>T​(p.Gly88Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000999 in 1,221,260 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign 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. G88A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

SMAD6
NM_005585.5 missense

Scores

2
3
13

Clinical Significance

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

Conservation

PhyloP100: 0.158

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: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.36225766).

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.262G>Tp.Gly88Cys
missense
Exon 1 of 4NP_005576.3
SMAD6
NR_027654.2
n.1285G>T
non_coding_transcript_exon
Exon 1 of 5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMAD6
ENST00000288840.10
TSL:1 MANE Select
c.262G>Tp.Gly88Cys
missense
Exon 1 of 4ENSP00000288840.5O43541-1
SMAD6
ENST00000557916.5
TSL:1
n.262G>T
non_coding_transcript_exon
Exon 1 of 5ENSP00000452955.1O43541-4
SMAD6
ENST00000966143.1
c.262G>Tp.Gly88Cys
missense
Exon 1 of 3ENSP00000636202.1

Frequencies

GnomAD3 genomes
AF:
0.00000661
AC:
1
AN:
151236
Hom.:
0
Cov.:
33
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:
0.0000148
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000113
AC:
121
AN:
1070024
Hom.:
0
Cov.:
32
AF XY:
0.000109
AC XY:
55
AN XY:
506322
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
22096
American (AMR)
AF:
0.00
AC:
0
AN:
7740
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
13304
East Asian (EAS)
AF:
0.00
AC:
0
AN:
24800
South Asian (SAS)
AF:
0.00
AC:
0
AN:
19518
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
26350
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
2804
European-Non Finnish (NFE)
AF:
0.000132
AC:
120
AN:
911154
Other (OTH)
AF:
0.0000237
AC:
1
AN:
42258
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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

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:
0.00000661
AC:
1
AN:
151236
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
73860
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41318
American (AMR)
AF:
0.00
AC:
0
AN:
15194
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5128
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10286
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
312
European-Non Finnish (NFE)
AF:
0.0000148
AC:
1
AN:
67712
Other (OTH)
AF:
0.00
AC:
0
AN:
2078
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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

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:
0.0000264

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
-
Craniosynostosis 7 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.043
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
26
DANN
Uncertain
1.0
DEOGEN2
Benign
0.30
T
Eigen
Benign
-0.28
Eigen_PC
Benign
-0.31
FATHMM_MKL
Benign
0.66
D
LIST_S2
Benign
0.49
T
M_CAP
Pathogenic
0.92
D
MetaRNN
Benign
0.36
T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
1.1
L
PhyloP100
0.16
PrimateAI
Pathogenic
0.92
D
PROVEAN
Benign
-0.63
N
REVEL
Benign
0.16
Sift
Uncertain
0.019
D
Sift4G
Uncertain
0.019
D
Polyphen
0.95
P
Vest4
0.25
MutPred
0.33
Loss of methylation at R91 (P = 0.0691)
MVP
0.67
MPC
2.2
ClinPred
0.64
D
GERP RS
2.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.14
gMVP
0.38
Mutation Taster
=78/22
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: rs887913905; hg19: chr15-66995858; API