rs72653788
Variant summary
Our verdict is Pathogenic. The variant received 16 ACMG points: 16P and 0B. PM1PM5PP3_StrongPP5_Very_Strong
The NM_001171.6(ABCC6):c.2278C>T(p.Arg760Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000769 in 1,613,258 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R760Q) has been classified as Likely pathogenic.
Frequency
Consequence
NM_001171.6 missense
Scores
Clinical Significance
Conservation
Publications
- arterial calcification, generalized, of infancy, 2Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
- autosomal recessive inherited pseudoxanthoma elasticumInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Orphanet, Labcorp Genetics (formerly Invitae), G2P
- arterial calcification of infancyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Pathogenic. The variant received 16 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| ABCC6 | NM_001171.6 | c.2278C>T | p.Arg760Trp | missense_variant | Exon 18 of 31 | ENST00000205557.12 | NP_001162.5 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| ABCC6 | ENST00000205557.12 | c.2278C>T | p.Arg760Trp | missense_variant | Exon 18 of 31 | 1 | NM_001171.6 | ENSP00000205557.7 | ||
| ABCC6 | ENST00000456970.6 | n.2278C>T | non_coding_transcript_exon_variant | Exon 18 of 29 | 2 | ENSP00000405002.2 | ||||
| ABCC6 | ENST00000622290.5 | n.2278C>T | non_coding_transcript_exon_variant | Exon 18 of 32 | 5 | ENSP00000483331.2 |
Frequencies
GnomAD3 genomes AF: 0.0000591 AC: 9AN: 152192Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000320 AC: 8AN: 249666 AF XY: 0.0000369 show subpopulations
GnomAD4 exome AF: 0.0000787 AC: 115AN: 1460948Hom.: 0 Cov.: 36 AF XY: 0.0000853 AC XY: 62AN XY: 726766 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000591 AC: 9AN: 152310Hom.: 0 Cov.: 33 AF XY: 0.0000537 AC XY: 4AN XY: 74466 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Pathogenic:3
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This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 760 of the ABCC6 protein (p.Arg760Trp). This variant is present in population databases (rs72653788, gnomAD 0.006%). This missense change has been observed in individual(s) with pseudoxanthoma elasticum (PMID: 15723264, 16086317). 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: 433268). 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%. Experimental studies have shown that this missense change affects ABCC6 function (PMID: 30154241). For these reasons, this variant has been classified as Pathogenic. -
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Autosomal recessive inherited pseudoxanthoma elasticum Pathogenic:2
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Autosomal recessive inherited pseudoxanthoma elasticum;C1867450:Pseudoxanthoma elasticum, forme fruste;C3276161:Arterial calcification, generalized, of infancy, 2 Pathogenic:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at