rs990598927

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_005585.5(SMAD6):​c.194C>G​(p.Pro65Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000099 in 1,272,722 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 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. P65S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000096 ( 0 hom. )

Consequence

SMAD6
NM_005585.5 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 0.330

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_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.21273813).

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.194C>Gp.Pro65Arg
missense
Exon 1 of 4NP_005576.3
SMAD6
NR_027654.2
n.1217C>G
non_coding_transcript_exon
Exon 1 of 5

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SMAD6
ENST00000288840.10
TSL:1 MANE Select
c.194C>Gp.Pro65Arg
missense
Exon 1 of 4ENSP00000288840.5O43541-1
SMAD6
ENST00000557916.5
TSL:1
n.194C>G
non_coding_transcript_exon
Exon 1 of 5ENSP00000452955.1O43541-4
SMAD6
ENST00000966143.1
c.194C>Gp.Pro65Arg
missense
Exon 1 of 3ENSP00000636202.1

Frequencies

GnomAD3 genomes
AF:
0.000119
AC:
18
AN:
151660
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000193
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:
0.00318
Gnomad NFE
AF:
0.000133
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000963
AC:
108
AN:
1120954
Hom.:
0
Cov.:
32
AF XY:
0.0000860
AC XY:
46
AN XY:
534936
show subpopulations
African (AFR)
AF:
0.000131
AC:
3
AN:
22872
American (AMR)
AF:
0.000239
AC:
2
AN:
8368
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
14544
East Asian (EAS)
AF:
0.00
AC:
0
AN:
26598
South Asian (SAS)
AF:
0.00
AC:
0
AN:
27522
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
35472
Middle Eastern (MID)
AF:
0.000336
AC:
1
AN:
2980
European-Non Finnish (NFE)
AF:
0.000103
AC:
97
AN:
938022
Other (OTH)
AF:
0.000112
AC:
5
AN:
44576
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
6
12
19
25
31
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:
0.000119
AC:
18
AN:
151768
Hom.:
0
Cov.:
33
AF XY:
0.0000539
AC XY:
4
AN XY:
74172
show subpopulations
African (AFR)
AF:
0.000193
AC:
8
AN:
41488
American (AMR)
AF:
0.00
AC:
0
AN:
15246
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3464
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5122
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10420
Middle Eastern (MID)
AF:
0.00342
AC:
1
AN:
292
European-Non Finnish (NFE)
AF:
0.000133
AC:
9
AN:
67892
Other (OTH)
AF:
0.00
AC:
0
AN:
2106
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
1
2
3
4
5
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:
0.000214
Hom.:
0
Bravo
AF:
0.000113

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)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.084
BayesDel_addAF
Benign
-0.092
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
17
DANN
Benign
0.89
DEOGEN2
Benign
0.28
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.43
T
M_CAP
Pathogenic
0.67
D
MetaRNN
Benign
0.21
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.81
L
PhyloP100
0.33
PrimateAI
Pathogenic
0.94
D
PROVEAN
Benign
-0.26
N
REVEL
Benign
0.098
Sift
Benign
0.25
T
Sift4G
Benign
0.35
T
Polyphen
0.43
B
Vest4
0.14
MutPred
0.25
Loss of loop (P = 0.0128)
MVP
0.75
MPC
1.2
ClinPred
0.12
T
GERP RS
1.6
Varity_R
0.063
gMVP
0.29
Mutation Taster
=88/12
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: rs990598927; hg19: chr15-66995790; API