NM_005585.5:c.92_100delGTGGCGGCG

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 1P and 1B. PP3BP3

The NM_005585.5(SMAD6):​c.92_100delGTGGCGGCG​(p.Gly31_Gly33del) variant causes a disruptive inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000809 in 1,483,448 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. G31G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000075 ( 0 hom. )

Consequence

SMAD6
NM_005585.5 disruptive_inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.00

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):
  • craniosynostosis 7
    Inheritance: AD, Unknown Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics, PanelApp Australia
  • radioulnar synostosis, nonsyndromic, susceptibility to
    Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics
  • aortic valve disease 2
    Inheritance: AD, Unknown Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • 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: Uncertain_significance. The variant received 0 ACMG points.

PP3
No computational evidence supports a deleterious effect, but strongly conserved according to phyloP
BP3
Nonframeshift variant in repetitive region in NM_005585.5

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SMAD6NM_005585.5 linkc.92_100delGTGGCGGCG p.Gly31_Gly33del disruptive_inframe_deletion Exon 1 of 4 ENST00000288840.10 NP_005576.3 O43541-1
SMAD6NR_027654.2 linkn.1115_1123delGTGGCGGCG non_coding_transcript_exon_variant Exon 1 of 5
SMAD6XR_931827.3 linkn.1115_1123delGTGGCGGCG non_coding_transcript_exon_variant Exon 1 of 4

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SMAD6ENST00000288840.10 linkc.92_100delGTGGCGGCG p.Gly31_Gly33del disruptive_inframe_deletion Exon 1 of 4 1 NM_005585.5 ENSP00000288840.5 O43541-1
SMAD6ENST00000557916.5 linkn.92_100delGTGGCGGCG non_coding_transcript_exon_variant Exon 1 of 5 1 ENSP00000452955.1 O43541-4
SMAD6ENST00000612349.1 linkn.274_282delGTGGCGGCG non_coding_transcript_exon_variant Exon 1 of 1 6

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151980
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000110
AC:
1
AN:
91254
AF XY:
0.00
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:
0.0000304
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000751
AC:
10
AN:
1331468
Hom.:
0
AF XY:
0.00000457
AC XY:
3
AN XY:
656716
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26590
American (AMR)
AF:
0.00
AC:
0
AN:
26348
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
23192
East Asian (EAS)
AF:
0.00
AC:
0
AN:
28480
South Asian (SAS)
AF:
0.00
AC:
0
AN:
72474
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
46978
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4140
European-Non Finnish (NFE)
AF:
0.00000667
AC:
7
AN:
1048718
Other (OTH)
AF:
0.0000550
AC:
3
AN:
54548
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
1
2
2
3
4
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:
0.0000132
AC:
2
AN:
151980
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74254
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41410
American (AMR)
AF:
0.00
AC:
0
AN:
15272
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5152
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10572
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
67952
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.600
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:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Aortic valve disease 2 Uncertain:1
Apr 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant, c.92_100del, results in the deletion of 3 amino acid(s) of the SMAD6 protein (p.Gly31_Gly33del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with SMAD6-related conditions. ClinVar contains an entry for this variant (Variation ID: 405516). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
8.0
Mutation Taster
=160/40
polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs750149627; hg19: chr15-66995680; API