Genetic Variant NM_000033.4:c.258C>G (chrX-153725524-C-G) – ACMG Classification: Likely_benign (-3 pts)

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_000033.4(ABCD1):c.258C>G(p.Val86Val) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000948 in 1,055,155 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign 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. V86V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 26)

Exomes 𝑓: 9.5e-7 ( 0 hom. 0 hem. )

Consequence

ABCD1
NM_000033.4 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.525

Publications

1 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

ABCD1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP7

Synonymous conserved (PhyloP=-0.525 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ABCD1	NM_000033.4 link	c.258C>G	p.Val86Val	synonymous_variant	Exon 1 of 10	ENST00000218104.6	NP_000024.2	P33897
ABCD1	NM_001440747.1 link	c.258C>G	p.Val86Val	synonymous_variant	Exon 1 of 11		NP_001427676.1
ABCD1	XM_047441917.1 link	c.258C>G	p.Val86Val	synonymous_variant	Exon 1 of 8		XP_047297873.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ABCD1	ENST00000218104.6 link	c.258C>G	p.Val86Val	synonymous_variant	Exon 1 of 10	1	NM_000033.4	ENSP00000218104.3		P33897

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000826

AC:

AN:

121082

AF XY:

0.00

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000937

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

9.48e-7

AC:

AN:

1055155

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

336153

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

25482

American (AMR)

AF:

0.00

AC:

AN:

31190

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

17445

East Asian (EAS)

AF:

0.0000346

AC:

AN:

28872

South Asian (SAS)

AF:

0.00

AC:

AN:

48496

European-Finnish (FIN)

AF:

0.00

AC:

AN:

35594

Middle Eastern (MID)

AF:

0.00

AC:

AN:

3301

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

820512

Other (OTH)

AF:

0.00

AC:

AN:

44263

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

5.8

(source)

DANN

Benign

0.81

PhyloP100

-0.53

PromoterAI

0.0064

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over