rs527236051
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PP3_StrongPP5
The NM_001171.6(ABCC6):c.4069C>T(p.Arg1357Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000887 in 1,612,424 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_001171.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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ABCC6 | NM_001171.6 | c.4069C>T | p.Arg1357Trp | missense_variant | Exon 29 of 31 | ENST00000205557.12 | NP_001162.5 | |
ABCC6 | NM_001351800.1 | c.3727C>T | p.Arg1243Trp | missense_variant | Exon 29 of 31 | NP_001338729.1 | ||
ABCC6 | NR_147784.1 | n.3731C>T | non_coding_transcript_exon_variant | Exon 27 of 29 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000657 AC: 10AN: 152142Hom.: 0 Cov.: 31
GnomAD3 exomes AF: 0.0000488 AC: 12AN: 245856Hom.: 0 AF XY: 0.0000525 AC XY: 7AN XY: 133402
GnomAD4 exome AF: 0.0000911 AC: 133AN: 1460166Hom.: 0 Cov.: 31 AF XY: 0.0000978 AC XY: 71AN XY: 726216
GnomAD4 genome AF: 0.0000657 AC: 10AN: 152258Hom.: 0 Cov.: 31 AF XY: 0.0000537 AC XY: 4AN XY: 74440
ClinVar
Submissions by phenotype
Autosomal recessive inherited pseudoxanthoma elasticum Pathogenic:2Uncertain:1
The variant is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.005%). Predicted Consequence/Location: Missense variant In silico tool predictions suggest damaging effect of the variant on gene or gene product [REVEL: 0.79 (>=0.6, sensitivity 0.68 and specificity 0.92); 3Cnet: 0.94 (>=0.6, sensitivity 0.72 and precision 0.9)]. Same nucleotide change resulting in same amino acid change has been previously reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000143119 /PMID: 15645653). The variant has been reported to be in trans with a pathogenic variant as either compound heterozygous or homozygous in at least 2 similarly affected unrelated individuals (PMID: 15645653, 28912966). Different missense changes at the same codon (p.Arg1357Gln, p.Arg1357Pro) have been reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV001359254, VCV002040203 /PMID: 34205333). Therefore, this variant is classified as Pathogenic according to the recommendation of ACMG/AMP guideline. -
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not provided Pathogenic:1Benign:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 1357 of the ABCC6 protein (p.Arg1357Trp). This variant is present in population databases (rs63750428, gnomAD 0.03%). This missense change has been observed in individual(s) with pseudoxanthoma elasticum (PMID: 15645653, 16086317, 28912966). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 143119). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt ABCC6 protein function with a positive predictive value of 95%. For these reasons, this variant has been classified as Pathogenic. -
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Autosomal recessive inherited pseudoxanthoma elasticum;C1867450:Pseudoxanthoma elasticum, forme fruste;C3276161:Arterial calcification, generalized, of infancy, 2 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at