Evidence Repository - Clinical Genome Resources

The ClinGen Evidence Repository is an FDA-recognized human genetic variant database containing expert-curated assertions regarding variants' pathogenicity and supporting evidence summaries. [Disclaimer]

Variant: NM_000350.3:c.4853G>A

CA341283237

Gene: ABCA4 (HGNC:24)

Condition: ABCA4-related retinopathy (MONDO:0800406)

Inheritance Mode: Autosomal recessive inheritance

UUID: da047a0d-35cb-4d16-a931-acd33ee1fe53

Approved on: 2025-12-05

Published on: 2025-12-19

HGVS expressions

NM_000350.3:c.4853G>A

NC_000001.11:g.94021405C>T

CM000663.2:g.94021405C>T

NC_000001.10:g.94486961C>T

CM000663.1:g.94486961C>T

NC_000001.9:g.94259549C>T

NG_009073.1:g.104745G>A

ENST00000370225.4:c.4853G>A

ENST00000370225.3:c.4853G>A

ENST00000460514.1:n.347G>A

ENST00000536513.5:c.1229G>A

NM_000350.2:c.4853G>A

Pathogenic

PS4 PVS1 PM2_Supporting

Evidence Links 0

Expert Panel

ABCA4 VCEP

Criteria Specification Information

Criteria Specification: ClinGen ABCA4 Expert Panel Specifications to the ACMG/AMP Variant Interpretation Guidelines for ABCA4 Version 1.0.0

Criteria Specification Approval History

Criteria Specifications for this VCEP

Evidence submitted by expert panel

ABCA4 VCEP

The NM_000350.3:c.4853G>A; p.Trp1618Ter variant in ABC4A is a nonsense variant predicted to cause a premature stop codon in biologically relevant exon 35/50 leading to nonsense mediated decay in a gene in which loss-of-function is an established disease mechanism (PVS1). This variant is absent from gnomAD v4.1.0 (PM2_Supporting). This variant was reported in individuals with ABCA4-related retinopathy (PMID: 31543898, 33301772). The prevalence of the variant in affected individuals is significantly increased compared with the prevalence in controls with an odds ratio at infinity and the confidence interval is from 2.24 to infinity, which is above the ABCA4 VCEP threshold of >5, where the CI does not contain 1 (PS4; PMID: 35120629). In summary, this variant meets the criteria to be classified as pathogenic for ABCA4-related retinopathy based on the ACMG/AMP criteria applied, as specified by the ClinGen ABCA4 VCEP (Specification Version 1.0): PVS1, PS4, PM2_Supporting.

PS4

The prevalence of the variant in affected individuals is significantly increased compared with the prevalence in controls. The OR is infinity and the CI is 2.24 to infinity, which is above the ABCA4 VCEP threshold of >5, where the CI does not contain 1 (PS4; PMID: 35120629).

PVS1

This is a nonsense variant located in exon 35 out of 50, and introduces a premature stop codon between codons 1-2255 (PVS1).

PM2_Supporting

This variant is absent from gnomAD v4.1.0 (PM2_Supporting).

Curation History

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