rs193922098

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PM1PM2PM5PP3_Strong

The NM_000033.4(ABCD1):​c.838C>A​(p.Arg280Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000882 in 113,411 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R280H) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.0000088 ( 0 hom., 0 hem., cov: 26)
Exomes 𝑓: 0.0 ( 0 hom. 0 hem. )
Failed GnomAD Quality Control

Consequence

ABCD1
NM_000033.4 missense

Scores

13
3
1

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 4.46

Publications

10 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: Pathogenic. The variant received 10 ACMG points.

PM1
In a hotspot region, there are 16 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 13 uncertain in NM_000033.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chrX-153726105-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 953948.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.965

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ABCD1NM_000033.4 linkc.838C>A p.Arg280Ser missense_variant Exon 1 of 10 ENST00000218104.6 NP_000024.2
ABCD1NM_001440747.1 linkc.838C>A p.Arg280Ser missense_variant Exon 1 of 11 NP_001427676.1
ABCD1XM_047441917.1 linkc.838C>A p.Arg280Ser 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.838C>A p.Arg280Ser missense_variant Exon 1 of 10 1 NM_000033.4 ENSP00000218104.3
ABCD1ENST00000370129.4 linkc.283C>A p.Arg95Ser missense_variant Exon 1 of 2 2 ENSP00000359147.3

Frequencies

GnomAD3 genomes
AF:
0.00000882
AC:
1
AN:
113357
Hom.:
0
Cov.:
26
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000920
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000776
AC:
1
AN:
128935
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000445
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1067640
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
342512
African (AFR)
AF:
0.00
AC:
0
AN:
25770
American (AMR)
AF:
0.00
AC:
0
AN:
31567
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
18200
East Asian (EAS)
AF:
0.00
AC:
0
AN:
28937
South Asian (SAS)
AF:
0.00
AC:
0
AN:
49960
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
37846
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4063
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
826449
Other (OTH)
AF:
0.00
AC:
0
AN:
44848
GnomAD4 genome
AF:
0.00000882
AC:
1
AN:
113411
Hom.:
0
Cov.:
26
AF XY:
0.00
AC XY:
0
AN XY:
35563
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
31332
American (AMR)
AF:
0.0000919
AC:
1
AN:
10879
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2659
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3599
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2816
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6337
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
219
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53337
Other (OTH)
AF:
0.00
AC:
0
AN:
1547
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 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: 0.375
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:
0.00
Hom.:
0
ExAC
AF:
0.00000842
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.69
D
BayesDel_noAF
Pathogenic
0.76
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.99
D;D
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.95
D;D
M_CAP
Pathogenic
0.94
D
MetaRNN
Pathogenic
0.96
D;D
MetaSVM
Pathogenic
0.89
D
MutationAssessor
Pathogenic
3.5
H;.
PhyloP100
4.5
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-5.6
D;D
REVEL
Pathogenic
0.97
Sift
Pathogenic
0.0
D;D
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;.
Vest4
0.88
MutPred
0.85
Gain of phosphorylation at R280 (P = 0.0389);.;
MVP
1.0
MPC
1.6
ClinPred
0.99
D
GERP RS
5.1
PromoterAI
0.027
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.99
gMVP
1.0
Mutation Taster
=2/98
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: rs193922098; hg19: chrX-152991559; COSMIC: COSV54388375; COSMIC: COSV54388375; API