chr15-66703259-A-G
Position:
Variant summary
Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PVS1PM2
The NM_005585.5(SMAD6):āc.1A>Gā(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000231 in 1,300,550 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 (ā ).
Frequency
Genomes: not found (cov: 33)
Exomes š: 0.0000023 ( 0 hom. )
Consequence
SMAD6
NM_005585.5 start_lost
NM_005585.5 start_lost
Scores
7
7
2
Clinical Significance
Conservation
PhyloP100: 2.04
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]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 10 ACMG points.
PVS1
Start lost variant, no new inframe start found.
PM2
Very rare variant in population databases, with high coverage;
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SMAD6 | NM_005585.5 | c.1A>G | p.Met1? | start_lost | 1/4 | ENST00000288840.10 | |
SMAD6 | NR_027654.2 | n.1024A>G | non_coding_transcript_exon_variant | 1/5 | |||
SMAD6 | XR_931827.3 | n.1024A>G | non_coding_transcript_exon_variant | 1/4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SMAD6 | ENST00000288840.10 | c.1A>G | p.Met1? | start_lost | 1/4 | 1 | NM_005585.5 | P1 | |
SMAD6 | ENST00000557916.5 | c.1A>G | p.Met1? | start_lost, NMD_transcript_variant | 1/5 | 1 | |||
SMAD6 | ENST00000612349.1 | n.183A>G | non_coding_transcript_exon_variant | 1/1 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 genomes
Cov.:
33
GnomAD4 exome AF: 0.00000231 AC: 3AN: 1300550Hom.: 0 Cov.: 31 AF XY: 0.00000468 AC XY: 3AN XY: 641674
GnomAD4 exome
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3
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1300550
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31
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3
AN XY:
641674
Gnomad4 AFR exome
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GnomAD4 genome Cov.: 33
GnomAD4 genome
Cov.:
33
ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link
Submissions by phenotype
Aortic valve disease 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 16, 2022 | 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. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. Disruption of the initiator codon has been observed in individual(s) with craniosynostosis (PMID: 28808027). This variant is not present in population databases (gnomAD no frequency). This sequence change affects the initiator methionine of the SMAD6 mRNA. The next in-frame methionine is located at codon 93. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
D
BayesDel_noAF
Pathogenic
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Uncertain
D
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Uncertain
D
LIST_S2
Uncertain
D
M_CAP
Pathogenic
D
MetaRNN
Pathogenic
D
MetaSVM
Uncertain
D
MutationTaster
Benign
D;D
PROVEAN
Benign
N
REVEL
Pathogenic
Sift
Pathogenic
D
Sift4G
Pathogenic
D
Polyphen
P
Vest4
MutPred
Gain of methylation at K5 (P = 0.1521);
MVP
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
No publications associated with this variant yet.