NM_000350.3(ABCA4):c.1957C>T (p.Arg653Cys) AND not provided

Germline classification:: Pathogenic/Likely pathogenic (7 submissions)
Last evaluated:: Jan 26, 2024
Review status:: 2 stars out of maximum of 4 stars
criteria provided, multiple submitters, no conflicts

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV000085452.36

Allele description [Variation Report for NM_000350.3(ABCA4):c.1957C>T (p.Arg653Cys)]

NM_000350.3(ABCA4):c.1957C>T (p.Arg653Cys)

Gene:

ABCA4:ATP binding cassette subfamily A member 4 [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

1p22.1

Genomic location:

Preferred name:

NM_000350.3(ABCA4):c.1957C>T (p.Arg653Cys)

HGVS:

NC_000001.11:g.94060740G>A
NG_009073.1:g.65410C>T
NG_009073.2:g.65408C>T
NM_000350.3:c.1957C>TMANE SELECT
NM_001425324.1:c.1957C>T
NP_000341.2:p.Arg653Cys
NP_001412253.1:p.Arg653Cys
NC_000001.10:g.94526296G>A
NM_000350.2:c.1957C>T
P78363:p.Arg653Cys

Protein change:

R653C

Links:

UniProtKB: P78363#VAR_012529; dbSNP: rs61749420

NCBI 1000 Genomes Browser:

rs61749420

Molecular consequence:

NM_000350.3:c.1957C>T - missense variant - [Sequence Ontology: SO:0001583]
NM_001425324.1:c.1957C>T - missense variant - [Sequence Ontology: SO:0001583]

Observations:

Condition(s)

Synonyms:: none provided
Identifiers:: MedGen: C3661900

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV000117589	Retina International	no classification provided	not provided	not provided	not provided
SCV000574771	CeGaT Center for Human Genetics Tuebingen	criteria provided, single submitter (CeGaT Center For Human Genetics Tuebingen Variant Classification Criteria Version 2)	Pathogenic (Apr 1, 2023)	germline	clinical testing	Citation Link,
SCV001202188	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Pathogenic (Jan 26, 2024)	germline	clinical testing	PubMed (6) [See all records that cite these PMIDs] 23776498, 28559085, 9466990, 10413692, 19074458, 28492532
SCV001446861	Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely pathogenic (Oct 23, 2020)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV001782833	GeneDx	criteria provided, single submitter (GeneDx Variant Classification Process June 2021)	Pathogenic (Aug 11, 2021)	germline	clinical testing	Citation Link,
SCV001957874	Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Likely pathogenic	germline	clinical testing
SCV001968217	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center - VKGL Data-share Consensus See additional submitters Diagnostic Laboratory, Department of Genetics, University Medical Center Groningen	no assertion criteria provided	Likely pathogenic	germline	clinical testing

Description

http://phencode.bx.psu.edu/cgi-bin/phencode/phencode?build=hg19&id=RISN_ABCR:c.1957C>T: SCV000117589

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	yes	5	not provided	not provided	1	not provided	clinical testing
not provided	not provided	not provided	not provided	not provided	not provided	1	not provided	literature only
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Exome sequencing of 47 chinese families with cone-rod dystrophy: mutations in 25 known causative genes.

Huang L, Zhang Q, Li S, Guan L, Xiao X, Zhang J, Jia X, Sun W, Zhu Z, Gao Y, Yin Y, Wang P, Guo X, Wang J, Zhang Q.

PLoS One. 2013 Jun 11;8(6):e65546. doi: 10.1371/journal.pone.0065546. Print 2013.

PubMed [citation]

PMID:: 23776498
PMCID:: PMC3679152

Clinically Focused Molecular Investigation of 1000 Consecutive Families with Inherited Retinal Disease.

Stone EM, Andorf JL, Whitmore SS, DeLuca AP, Giacalone JC, Streb LM, Braun TA, Mullins RF, Scheetz TE, Sheffield VC, Tucker BA.

Ophthalmology. 2017 Sep;124(9):1314-1331. doi: 10.1016/j.ophtha.2017.04.008. Epub 2017 May 27.

PubMed [citation]

PMID:: 28559085
PMCID:: PMC5565704

See all PubMed Citations (7)

Details of each submission

From Retina International, SCV000117589.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	not provided	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	not provided	not provided	1	not provided	not provided		not provided	not provided	not provided	not provided

From CeGaT Center for Human Genetics Tuebingen, SCV000574771.32

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	5	not provided	not provided	clinical testing	not provided

Description

ABCA4: PM3:Very Strong, PM2, PM5, PP4, PS3:Supporting

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		5	not provided	not provided	not provided

From Labcorp Genetics (formerly Invitae), Labcorp, SCV001202188.5

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (6)

Description

This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 653 of the ABCA4 protein (p.Arg653Cys). This variant is present in population databases (rs61749420, gnomAD 0.003%). This missense change has been observed in individual(s) with cone rod dystrophy and Stargardt disease (PMID: 23776498, 28559085). 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: 99108). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt ABCA4 protein function with a positive predictive value of 95%. This variant disrupts the p.Arg653 amino acid residue in ABCA4. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 9466990, 10413692, 19074458). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen, SCV001446861.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	1	not provided	not provided		not provided	not provided	not provided	not provided

From GeneDx, SCV001782833.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

Description

In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Not observed at significant frequency in large population cohorts (Lek et al., 2016); This variant is associated with the following publications: (PMID: 33375396, 10958763, 33301772, 28559085, 23776498, 29925512, 32619608, 30204727, 23982839, 18652558, 25444351, 25097154, 23953153, 19265867, 15192030, 28355279, 27939946, 23499370, 11702214, 26957898, 26992781)

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ - VKGL Data-share Consensus, SCV001957874.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

From Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center - VKGL Data-share Consensus, SCV001968217.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	not provided

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	yes	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: Nov 3, 2024

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