chr15-66703669-G-C

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM2BP4_StrongBP6_ModerateBP7

The NM_005585.5(SMAD6):ā€‹c.411G>Cā€‹(p.Ala137=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000244 in 1,230,044 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…). Synonymous variant affecting the same amino acid position (i.e. A137A) has been classified as Likely benign.

Frequency

Genomes: š‘“ 0.0000067 ( 0 hom., cov: 33)
Exomes š‘“: 0.0000019 ( 0 hom. )

Consequence

SMAD6
NM_005585.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.367
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.75).
BP6
Variant 15-66703669-G-C is Benign according to our data. Variant chr15-66703669-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 471758.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=0.367 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SMAD6NM_005585.5 linkuse as main transcriptc.411G>C p.Ala137= synonymous_variant 1/4 ENST00000288840.10
SMAD6NR_027654.2 linkuse as main transcriptn.1434G>C non_coding_transcript_exon_variant 1/5
SMAD6XR_931827.3 linkuse as main transcriptn.1434G>C non_coding_transcript_exon_variant 1/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SMAD6ENST00000288840.10 linkuse as main transcriptc.411G>C p.Ala137= synonymous_variant 1/41 NM_005585.5 P1O43541-1
SMAD6ENST00000557916.5 linkuse as main transcriptc.411G>C p.Ala137= synonymous_variant, NMD_transcript_variant 1/51 O43541-4
SMAD6ENST00000612349.1 linkuse as main transcriptn.593G>C non_coding_transcript_exon_variant 1/1

Frequencies

GnomAD3 genomes
AF:
0.00000666
AC:
1
AN:
150086
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000244
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000185
AC:
2
AN:
1079958
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
515052
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000218
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000666
AC:
1
AN:
150086
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
73246
show subpopulations
Gnomad4 AFR
AF:
0.0000244
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Aortic valve disease 2 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 09, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.75
CADD
Benign
9.4
DANN
Benign
0.42

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs1555434217; hg19: chr15-66996007; API