NM_000350.3:c.3106G>A
Variant names:
Variant summary
Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PM1PP2PP5_Very_Strong
The NM_000350.3(ABCA4):c.3106G>A(p.Glu1036Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000372 in 1,614,022 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely pathogenic (★★). The gene ABCA4 is included in the ClinGen Criteria Specification Registry.
Frequency
Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )
Consequence
ABCA4
NM_000350.3 missense
NM_000350.3 missense
Scores
5
13
Clinical Significance
Conservation
PhyloP100: 0.226
Publications
7 publications found
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]
ABCA4 Gene-Disease associations (from GenCC):
- ABCA4-related retinopathyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- cone-rod dystrophy 3Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
- severe early-childhood-onset retinal dystrophyInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), Ambry Genetics
- retinitis pigmentosa 19Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- cone-rod dystrophyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- retinitis pigmentosaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- Stargardt diseaseInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- age related macular degeneration 2Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Specifications for ABCA4 are available in the ClinGen Criteria Specification Registry and recommended for reference when assigning criteria.
Classification was made for transcript
Our verdict: Pathogenic. The variant received 11 ACMG points.
PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 8 uncertain in NM_000350.3
PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 578 curated pathogenic missense variants (we use a threshold of 10). The gene has 28 curated benign missense variants. Gene score misZ: -0.65813 (below the threshold of 3.09). Trascript score misZ: 1.3628 (below the threshold of 3.09). GenCC associations: The gene is linked to severe early-childhood-onset retinal dystrophy, retinitis pigmentosa, age related macular degeneration 2, retinitis pigmentosa 19, cone-rod dystrophy 3, ABCA4-related retinopathy, Stargardt disease, cone-rod dystrophy.
PP5
Variant 1-94043420-C-T is Pathogenic according to our data. Variant chr1-94043420-C-T is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 7886.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_000350.3. You can select a different transcript below to see updated ACMG assignments.
Frequencies
GnomAD3 genomes 0.00000657 AC: 1AN: 152128Hom.: 0 Cov.: 32 show subpopulations
GnomAD3 genomes
AF:
AC:
1
AN:
152128
Hom.:
Cov.:
32
Gnomad AFR
AF:
Gnomad AMI
AF:
Gnomad AMR
AF:
Gnomad ASJ
AF:
Gnomad EAS
AF:
Gnomad SAS
AF:
Gnomad FIN
AF:
Gnomad MID
AF:
Gnomad NFE
AF:
Gnomad OTH
AF:
GnomAD2 exomes AF: 0.0000119 AC: 3AN: 251316 AF XY: 0.0000147 show subpopulations
GnomAD2 exomes
AF:
AC:
3
AN:
251316
AF XY:
Gnomad AFR exome
AF:
Gnomad AMR exome
AF:
Gnomad ASJ exome
AF:
Gnomad EAS exome
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Gnomad FIN exome
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Gnomad NFE exome
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Gnomad OTH exome
AF:
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461894Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2AN XY: 727248 show subpopulations
GnomAD4 exome
AF:
AC:
5
AN:
1461894
Hom.:
Cov.:
31
AF XY:
AC XY:
2
AN XY:
727248
show subpopulations
African (AFR)
AF:
AC:
0
AN:
33480
American (AMR)
AF:
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
26136
East Asian (EAS)
AF:
AC:
5
AN:
39700
South Asian (SAS)
AF:
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
AC:
0
AN:
1112012
Other (OTH)
AF:
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Age Distribution
Exome Het
Variant carriers
0
2
4
6
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10
<30
30-35
35-40
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>80
Age
GnomAD4 genome 0.00000657 AC: 1AN: 152128Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74316 show subpopulations
GnomAD4 genome
AF:
AC:
1
AN:
152128
Hom.:
Cov.:
32
AF XY:
AC XY:
0
AN XY:
74316
show subpopulations
African (AFR)
AF:
AC:
0
AN:
41416
American (AMR)
AF:
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
AC:
0
AN:
3472
East Asian (EAS)
AF:
AC:
0
AN:
5176
South Asian (SAS)
AF:
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
AC:
0
AN:
10608
Middle Eastern (MID)
AF:
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
AC:
1
AN:
68030
Other (OTH)
AF:
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
Hom.:
Bravo
AF:
ClinVar
ClinVar submissions
View on ClinVar Significance:Pathogenic/Likely pathogenic
Revision:criteria provided, multiple submitters, no conflicts
Pathogenic
VUS
Benign
Condition
1
-
-
not provided (2)
1
-
-
Severe early-childhood-onset retinal dystrophy (1)
1
-
-
Severe early-childhood-onset retinal dystrophy;C1858806:Cone-rod dystrophy 3;C1866422:Retinitis pigmentosa 19;C3495438:Age related macular degeneration 2 (1)
1
-
-
Stargardt disease (1)
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Uncertain
DANN
Benign
DEOGEN2
Uncertain
T
Eigen
Benign
Eigen_PC
Benign
FATHMM_MKL
Benign
N
LIST_S2
Benign
T
M_CAP
Uncertain
D
MetaRNN
Uncertain
D
MetaSVM
Benign
T
MutationAssessor
Benign
N
PhyloP100
PrimateAI
Benign
T
PROVEAN
Benign
N
REVEL
Uncertain
Sift
Benign
T
Sift4G
Benign
T
Polyphen
B
Vest4
MutPred
Gain of methylation at E1036 (P = 0.009)
MVP
MPC
ClinPred
T
GERP RS
Varity_R
gMVP
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at
Publications
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