chrX-153724925-G-T

Variant names:

• chrX-153724925-G-T
• rs912340339
• NM_000033.4:c.-342G>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_000033.4(ABCD1):​c.-342G>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000179 in 111,470 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.

• Frequency: Genomes: 𝑓 0.000018 (0 hom., 0 hem., cov: 24)
• Consequence: ABCD1 NM_000033.4 5_prime_UTR
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.122
• Publications: 0 publications found

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]

BCAP31 (HGNC:16695): (B cell receptor associated protein 31) This gene encodes a member of the B-cell receptor associated protein 31 superfamily. The encoded protein is a multi-pass transmembrane protein of the endoplasmic reticulum that is involved in the anterograde transport of membrane proteins from the endoplasmic reticulum to the Golgi and in caspase 8-mediated apoptosis. Microdeletions in this gene are associated with contiguous ABCD1/DXS1375E deletion syndrome (CADDS), a neonatal disorder. Alternative splicing of this gene results in multiple transcript variants. Two related pseudogenes have been identified on chromosome 16. [provided by RefSeq, Jan 2012]

BCAP31 Gene-Disease associations (from GenCC):

• severe motor and intellectual disabilities-sensorineural deafness-dystonia syndrome

  Inheritance: XL, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Orphanet, PanelApp Australia, G2P

ACMG classification

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

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.6).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000033.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCD1	NM_000033.4	MANE Select	c.-342G>T		5_prime_UTR	Exon 1 of 10	NP_000024.2
	ABCD1	NM_001440747.1		c.-342G>T		5_prime_UTR	Exon 1 of 11	NP_001427676.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCD1	ENST00000218104.6	TSL:1 MANE Select	c.-342G>T		5_prime_UTR	Exon 1 of 10	ENSP00000218104.3	P33897
	ABCD1	ENST00000862307.1		c.-342G>T		5_prime_UTR	Exon 1 of 11	ENSP00000532366.1
	ABCD1	ENST00000862306.1		c.-342G>T		5_prime_UTR	Exon 1 of 11	ENSP00000532365.1

Frequencies

GnomAD3 genomes AF: 0.0000179 AC: 2 AN: 111470 Hom.: 0 Cov.: 24

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: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000379

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 0

GnomAD4 genome AF: 0.0000179 AC: 2 AN: 111470 Hom.: 0 Cov.: 24 AF XY: 0.00 AC XY: 0 AN XY: 33730

African (AFR) AF: 0.00 AC: 0 AN: 30729

American (AMR) AF: 0.00 AC: 0 AN: 10726

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 2640

East Asian (EAS) AF: 0.00 AC: 0 AN: 3464

South Asian (SAS) AF: 0.00 AC: 0 AN: 2673

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 6107

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 236

European-Non Finnish (NFE) AF: 0.0000379 AC: 2 AN: 52715

Other (OTH) AF: 0.00 AC: 0 AN: 1508

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.60
CADD	Benign	7.8
DANN	Benign	0.84
PhyloP100		0.12
PromoterAI		-0.025	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0

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

Other links and lift over

dbSNP: rs912340339; hg19: chrX-152990380;