rs782628755

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate

The NM_000033.4(ABCD1):​c.249C>A​(p.Phe83Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000259 in 1,159,155 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. F83F) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000088 ( 0 hom., 1 hem., cov: 25)
Exomes 𝑓: 0.0000019 ( 0 hom. 0 hem. )

Consequence

ABCD1
NM_000033.4 missense

Scores

8
3
5

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.13

Publications

0 publications found
Variant links:
Genes affected
ABCD1 (HGNC:61): (ATP binding cassette subfamily D member 1) The 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 intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the ALD subfamily, which is involved in peroxisomal import of fatty acids and/or fatty acyl-CoAs in the organelle. All known peroxisomal ABC transporters are half transporters which require a partner half transporter molecule to form a functional homodimeric or heterodimeric transporter. This peroxisomal membrane protein is likely involved in the peroxisomal transport or catabolism of very long chain fatty acids. Defects in this gene have been identified as the underlying cause of adrenoleukodystrophy, an X-chromosome recessively inherited demyelinating disorder of the nervous system. [provided by RefSeq, Jul 2008]
ABCD1 Gene-Disease associations (from GenCC):
  • adrenoleukodystrophy
    Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, G2P
  • X-linked cerebral adrenoleukodystrophy
    Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Laboratory for Molecular Medicine, Orphanet
  • hereditary spastic paraplegia
    Inheritance: XL Classification: STRONG Submitted by: Genomics England PanelApp
  • Hirschsprung disease
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • adrenomyeloneuropathy
    Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 12 uncertain in NM_000033.4
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.859

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCD1NM_000033.4 linkc.249C>A p.Phe83Leu missense_variant Exon 1 of 10 ENST00000218104.6 NP_000024.2
ABCD1NM_001440747.1 linkc.249C>A p.Phe83Leu missense_variant Exon 1 of 11 NP_001427676.1
ABCD1XM_047441917.1 linkc.249C>A p.Phe83Leu missense_variant Exon 1 of 8 XP_047297873.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ABCD1ENST00000218104.6 linkc.249C>A p.Phe83Leu missense_variant Exon 1 of 10 1 NM_000033.4 ENSP00000218104.3

Frequencies

GnomAD3 genomes
AF:
0.00000884
AC:
1
AN:
113152
Hom.:
0
Cov.:
25
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000357
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000191
AC:
2
AN:
1046003
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
330659
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
25131
American (AMR)
AF:
0.00
AC:
0
AN:
29390
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
17307
East Asian (EAS)
AF:
0.00
AC:
0
AN:
28307
South Asian (SAS)
AF:
0.00
AC:
0
AN:
47610
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
34818
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3111
European-Non Finnish (NFE)
AF:
0.00000245
AC:
2
AN:
816468
Other (OTH)
AF:
0.00
AC:
0
AN:
43861
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.250
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.00000884
AC:
1
AN:
113152
Hom.:
0
Cov.:
25
AF XY:
0.0000283
AC XY:
1
AN XY:
35308
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
31240
American (AMR)
AF:
0.00
AC:
0
AN:
10867
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2656
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3580
South Asian (SAS)
AF:
0.000357
AC:
1
AN:
2805
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6316
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
240
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53238
Other (OTH)
AF:
0.00
AC:
0
AN:
1529

Age Distribution

Genome Hom
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:
0.00
Hom.:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.84
BayesDel_addAF
Pathogenic
0.34
D
BayesDel_noAF
Pathogenic
0.25
CADD
Benign
19
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.67
D
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.76
T
M_CAP
Pathogenic
0.75
D
MetaRNN
Pathogenic
0.86
D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Benign
0.97
L
PhyloP100
1.1
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
-0.12
N
REVEL
Pathogenic
0.68
Sift
Benign
0.17
T
Sift4G
Benign
0.20
T
Vest4
0.69
ClinPred
0.69
D
GERP RS
3.3
PromoterAI
0.0010
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.8
Varity_R
0.28
gMVP
0.96
Mutation Taster
=43/57
disease causing

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

Other links and lift over

dbSNP: rs782628755; hg19: chrX-152990970; API