rs1056072996
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2
The NM_005585.5(SMAD6):c.253C>T(p.Arg85Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000875 in 1,223,168 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).
Frequency
Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000084 ( 1 hom. )
Consequence
SMAD6
NM_005585.5 missense
NM_005585.5 missense
Scores
2
2
15
Clinical Significance
Conservation
PhyloP100: -0.0510
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 Likely_benign. Variant got -5 ACMG points.
BP4
?
Computational evidence support a benign effect (MetaRNN=0.3240858).
BS2
?
High AC in GnomAd at 17 AD gene.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SMAD6 | NM_005585.5 | c.253C>T | p.Arg85Cys | missense_variant | 1/4 | ENST00000288840.10 | |
SMAD6 | NR_027654.2 | n.1276C>T | non_coding_transcript_exon_variant | 1/5 | |||
SMAD6 | XR_931827.3 | n.1276C>T | non_coding_transcript_exon_variant | 1/4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SMAD6 | ENST00000288840.10 | c.253C>T | p.Arg85Cys | missense_variant | 1/4 | 1 | NM_005585.5 | P1 | |
SMAD6 | ENST00000557916.5 | c.253C>T | p.Arg85Cys | missense_variant, NMD_transcript_variant | 1/5 | 1 | |||
SMAD6 | ENST00000612349.1 | n.435C>T | non_coding_transcript_exon_variant | 1/1 |
Frequencies
GnomAD3 genomes ? AF: 0.000112 AC: 17AN: 151234Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.0000840 AC: 90AN: 1071934Hom.: 1 Cov.: 31 AF XY: 0.0000927 AC XY: 47AN XY: 507134
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GnomAD4 genome ? AF: 0.000112 AC: 17AN: 151234Hom.: 0 Cov.: 33 AF XY: 0.000108 AC XY: 8AN XY: 73838
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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 | Jan 25, 2024 | This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 85 of the SMAD6 protein (p.Arg85Cys). This variant is present in population databases (no rsID available, gnomAD 0.02%). This missense change has been observed in individual(s) with craniosynostosis (PMID: 32499606). ClinVar contains an entry for this variant (Variation ID: 471755). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
Cadd
Pathogenic
Dann
Uncertain
DEOGEN2
Benign
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
D
LIST_S2
Benign
T
M_CAP
Pathogenic
D
MetaRNN
Benign
T
MetaSVM
Benign
T
MutationAssessor
Benign
L
MutationTaster
Benign
D;D
PrimateAI
Pathogenic
D
PROVEAN
Benign
N
REVEL
Benign
Sift
Benign
T
Sift4G
Benign
T
Polyphen
D
Vest4
MutPred
Loss of methylation at R85 (P = 0.0157);
MVP
MPC
ClinPred
D
GERP RS
RBP_binding_hub_radar
RBP_regulation_power_radar
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at