17-69250482-G-A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_172232.4(ABCA5):​c.4675C>T​(p.Arg1559Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000666 in 1,606,840 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000067 ( 0 hom. )

Consequence

ABCA5
NM_172232.4 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.53

Publications

1 publications found
Variant links:
Genes affected
ABCA5 (HGNC:35): (ATP binding cassette subfamily A member 5) 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, and White). This encoded 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 gene is clustered among 4 other ABC1 family members on 17q24, but neither the substrate nor the function of this gene is known. Alternative splicing of this gene results in several transcript variants; however, not all variants have been fully described. [provided by RefSeq, Jul 2008]
ABCA5 Gene-Disease associations (from GenCC):
  • gingival fibromatosis-hypertrichosis syndrome
    Inheritance: AD, AR Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, G2P, Ambry Genetics
  • ventricular tachycardia, familial
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.19389728).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCA5NM_172232.4 linkc.4675C>T p.Arg1559Cys missense_variant Exon 36 of 39 ENST00000392676.8 NP_758424.1 Q8WWZ7-1
ABCA5NM_018672.5 linkc.4675C>T p.Arg1559Cys missense_variant Exon 35 of 38 NP_061142.2 Q8WWZ7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCA5ENST00000392676.8 linkc.4675C>T p.Arg1559Cys missense_variant Exon 36 of 39 1 NM_172232.4 ENSP00000376443.2 Q8WWZ7-1

Frequencies

GnomAD3 genomes
AF:
0.0000593
AC:
9
AN:
151718
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000386
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000883
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000772
AC:
19
AN:
246126
AF XY:
0.0000676
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000501
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000804
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000674
AC:
98
AN:
1455008
Hom.:
0
Cov.:
30
AF XY:
0.0000718
AC XY:
52
AN XY:
723752
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33032
American (AMR)
AF:
0.00
AC:
0
AN:
43334
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25954
East Asian (EAS)
AF:
0.000305
AC:
12
AN:
39308
South Asian (SAS)
AF:
0.0000236
AC:
2
AN:
84858
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53224
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5738
European-Non Finnish (NFE)
AF:
0.0000721
AC:
80
AN:
1109466
Other (OTH)
AF:
0.0000666
AC:
4
AN:
60094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.442
Heterozygous variant carriers
0
6
11
17
22
28
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000593
AC:
9
AN:
151832
Hom.:
0
Cov.:
32
AF XY:
0.0000539
AC XY:
4
AN XY:
74198
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41446
American (AMR)
AF:
0.00
AC:
0
AN:
15228
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3466
East Asian (EAS)
AF:
0.000387
AC:
2
AN:
5164
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10494
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000883
AC:
6
AN:
67914
Other (OTH)
AF:
0.00
AC:
0
AN:
2104
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.519
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000387
Hom.:
0
Bravo
AF:
0.0000453
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000577
AC:
7

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 25, 2023
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.4675C>T (p.R1559C) alteration is located in exon 35 (coding exon 35) of the ABCA5 gene. This alteration results from a C to T substitution at nucleotide position 4675, causing the arginine (R) at amino acid position 1559 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.099
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.090
CADD
Pathogenic
26
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.45
T;T;.
Eigen
Uncertain
0.38
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.91
.;D;D
M_CAP
Uncertain
0.089
D
MetaRNN
Benign
0.19
T;T;T
MetaSVM
Uncertain
-0.18
T
MutationAssessor
Benign
1.6
L;L;.
PhyloP100
8.5
PrimateAI
Benign
0.47
T
PROVEAN
Pathogenic
-4.9
D;.;.
REVEL
Uncertain
0.40
Sift
Benign
0.031
D;.;.
Sift4G
Uncertain
0.038
D;D;.
Polyphen
0.071
B;B;.
Vest4
0.71
MVP
0.88
MPC
0.065
ClinPred
0.33
T
GERP RS
6.1
Varity_R
0.18
gMVP
0.61
Mutation Taster
=68/32
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs559974558; hg19: chr17-67246623; COSMIC: COSV105330569; COSMIC: COSV105330569; API