rs4847281

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000350.3(ABCA4):​c.141A>G​(p.Pro47Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.998 in 1,613,766 control chromosomes in the GnomAD database, including 803,477 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.99 ( 74421 hom., cov: 31)
Exomes 𝑓: 1.0 ( 729056 hom. )

Consequence

ABCA4
NM_000350.3 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -2.25
Variant links:
Genes affected
ABCA4 (HGNC:34): (ATP binding cassette subfamily A member 4) The membrane-associated 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 intracellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ABC1 subfamily. Members of the ABC1 subfamily comprise the only major ABC subfamily found exclusively in multicellular eukaryotes. This protein is a retina-specific ABC transporter with N-retinylidene-PE as a substrate. It is expressed exclusively in retina photoreceptor cells, and the gene product mediates transport of an essental molecule, all-trans-retinal aldehyde (atRAL), across the photoreceptor cell membrane. Mutations in this gene are found in patients diagnosed with Stargardt disease, a form of juvenile-onset macular degeneration. Mutations in this gene are also associated with retinitis pigmentosa-19, cone-rod dystrophy type 3, early-onset severe retinal dystrophy, fundus flavimaculatus, and macular degeneration age-related 2. [provided by RefSeq, Sep 2019]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.92).
BP6
Variant 1-94112992-T-C is Benign according to our data. Variant chr1-94112992-T-C is described in ClinVar as [Benign]. Clinvar id is 166618.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.26 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.994 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCA4NM_000350.3 linkc.141A>G p.Pro47Pro synonymous_variant Exon 2 of 50 ENST00000370225.4 NP_000341.2 P78363Q6AI28
ABCA4NM_001425324.1 linkc.141A>G p.Pro47Pro synonymous_variant Exon 2 of 49 NP_001412253.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCA4ENST00000370225.4 linkc.141A>G p.Pro47Pro synonymous_variant Exon 2 of 50 1 NM_000350.3 ENSP00000359245.3 P78363
ABCA4ENST00000649773.1 linkc.141A>G p.Pro47Pro synonymous_variant Exon 2 of 19 ENSP00000496882.1 A0A3B3IRV8

Frequencies

GnomAD3 genomes
AF:
0.989
AC:
150416
AN:
152160
Hom.:
74372
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.960
Gnomad AMI
AF:
1.00
Gnomad AMR
AF:
0.995
Gnomad ASJ
AF:
1.00
Gnomad EAS
AF:
1.00
Gnomad SAS
AF:
0.999
Gnomad FIN
AF:
1.00
Gnomad MID
AF:
1.00
Gnomad NFE
AF:
1.00
Gnomad OTH
AF:
0.991
GnomAD3 exomes
AF:
0.997
AC:
250709
AN:
251442
Hom.:
124997
AF XY:
0.998
AC XY:
135595
AN XY:
135890
show subpopulations
Gnomad AFR exome
AF:
0.959
Gnomad AMR exome
AF:
0.998
Gnomad ASJ exome
AF:
1.00
Gnomad EAS exome
AF:
1.00
Gnomad SAS exome
AF:
1.00
Gnomad FIN exome
AF:
1.00
Gnomad NFE exome
AF:
1.00
Gnomad OTH exome
AF:
1.00
GnomAD4 exome
AF:
0.999
AC:
1459772
AN:
1461488
Hom.:
729056
Cov.:
42
AF XY:
0.999
AC XY:
726343
AN XY:
727068
show subpopulations
Gnomad4 AFR exome
AF:
0.958
Gnomad4 AMR exome
AF:
0.998
Gnomad4 ASJ exome
AF:
1.00
Gnomad4 EAS exome
AF:
1.00
Gnomad4 SAS exome
AF:
1.00
Gnomad4 FIN exome
AF:
1.00
Gnomad4 NFE exome
AF:
1.00
Gnomad4 OTH exome
AF:
0.997
GnomAD4 genome
AF:
0.988
AC:
150524
AN:
152278
Hom.:
74421
Cov.:
31
AF XY:
0.988
AC XY:
73599
AN XY:
74460
show subpopulations
Gnomad4 AFR
AF:
0.960
Gnomad4 AMR
AF:
0.995
Gnomad4 ASJ
AF:
1.00
Gnomad4 EAS
AF:
1.00
Gnomad4 SAS
AF:
0.999
Gnomad4 FIN
AF:
1.00
Gnomad4 NFE
AF:
1.00
Gnomad4 OTH
AF:
0.991
Alfa
AF:
0.998
Hom.:
152304
Bravo
AF:
0.987
Asia WGS
AF:
0.996
AC:
3465
AN:
3478
EpiCase
AF:
1.00
EpiControl
AF:
1.00

ClinVar

Significance: Benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:3
Nov 29, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

not specified Benign:1
Sep 17, 2013
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Age related macular degeneration 2 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Severe early-childhood-onset retinal dystrophy Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Retinitis pigmentosa 19 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Cone-rod dystrophy 3 Benign:1
Jul 14, 2021
Genome-Nilou Lab
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.92
CADD
Benign
0.36
DANN
Benign
0.38

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs4847281; hg19: chr1-94578548; API