rs869025350
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1PM2PP5_Very_Strong
The NM_022436.3(ABCG5):c.978del(p.Glu326AspfsTer14) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. E326E) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.
Frequency
Genomes: not found (cov: 32)
Consequence
ABCG5
NM_022436.3 frameshift
NM_022436.3 frameshift
Scores
Not classified
Clinical Significance
Conservation
PhyloP100: -0.646
Genes affected
ABCG5 (HGNC:13886): (ATP binding cassette subfamily G member 5) The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the White subfamily. The protein encoded by this gene functions as a half-transporter to limit intestinal absorption and promote biliary excretion of sterols. It is expressed in a tissue-specific manner in the liver, colon, and intestine. This gene is tandemly arrayed on chromosome 2, in a head-to-head orientation with family member ABCG8. Mutations in this gene may contribute to sterol accumulation and atheroschlerosis, and have been observed in patients with sitosterolemia. [provided by RefSeq, Jul 2008]
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ACMG classification
Classification made for transcript
Verdict is Pathogenic. Variant got 18 ACMG points.
PVS1
?
Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
PM2
?
Very rare variant in population databases, with high coverage;
PP5
?
Variant 2-43824358-AT-A is Pathogenic according to our data. Variant chr2-43824358-AT-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 222478.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
ABCG5 | NM_022436.3 | c.978del | p.Glu326AspfsTer14 | frameshift_variant | 8/13 | ENST00000405322.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
ABCG5 | ENST00000405322.8 | c.978del | p.Glu326AspfsTer14 | frameshift_variant | 8/13 | 1 | NM_022436.3 | P1 | |
ABCG5 | ENST00000486512.5 | n.1640-241del | intron_variant, non_coding_transcript_variant | 1 | |||||
ABCG5 | ENST00000644754.1 | n.1362del | non_coding_transcript_exon_variant | 5/10 | |||||
ABCG5 | ENST00000409962.1 | n.1402-241del | intron_variant, non_coding_transcript_variant | 2 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome Cov.: 33
GnomAD4 exome
Cov.:
33
GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
Sitosterolemia Pathogenic:2
Likely pathogenic, criteria provided, single submitter | clinical testing | Blueprint Genetics | Sep 24, 2015 | - - |
Pathogenic, criteria provided, single submitter | clinical testing | Invitae | Jan 11, 2018 | This sequence change creates a premature translational stop signal (p.Glu326Aspfs*14) in the ABCG5 gene. It is expected to result in an absent or disrupted protein product. This variant is not present in population databases (ExAC no frequency). This variant has not been reported in the literature in individuals with ABCG5-related disease. ClinVar contains an entry for this variant (Variation ID: 222478). Loss-of-function variants in ABCG5 are known to be pathogenic (PMID: 11138003, 25665839). For these reasons, this variant has been classified as Pathogenic. - |
Computational scores
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Calibrated prediction
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Prediction
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