X-25010254-G-C

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_139058.3(ARX):​c.1119+6C>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000979 in 102,127 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. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000098 ( 0 hom., 0 hem., cov: 20)

Consequence

ARX
NM_139058.3 splice_region, intron

Scores

2
Splicing: ADA: 0.00003471
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.890
Variant links:
Genes affected
ARX (HGNC:18060): (aristaless related homeobox) This gene is a homeobox-containing gene expressed during development. The expressed protein contains two conserved domains, a C-peptide (or aristaless domain) and the prd-like class homeobox domain. It is a member of the group-II aristaless-related protein family whose members are expressed primarily in the central and/or peripheral nervous system. This gene is thought to be involved in CNS development. Expansion of a polyalanine tract and other mutations in this gene cause X-linked cognitive disability and epilepsy. [provided by RefSeq, Jul 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.7).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARXNM_139058.3 linkuse as main transcriptc.1119+6C>G splice_region_variant, intron_variant ENST00000379044.5 NP_620689.1 Q96QS3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARXENST00000379044.5 linkuse as main transcriptc.1119+6C>G splice_region_variant, intron_variant 1 NM_139058.3 ENSP00000368332.4 Q96QS3

Frequencies

GnomAD3 genomes
AF:
0.00000979
AC:
1
AN:
102127
Hom.:
0
Cov.:
20
AF XY:
0.00
AC XY:
0
AN XY:
26445
show subpopulations
Gnomad AFR
AF:
0.0000367
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
Cov.:
34
GnomAD4 genome
AF:
0.00000979
AC:
1
AN:
102127
Hom.:
0
Cov.:
20
AF XY:
0.00
AC XY:
0
AN XY:
26445
show subpopulations
Gnomad4 AFR
AF:
0.0000367
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.70
CADD
Benign
12
DANN
Benign
0.50

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000035
dbscSNV1_RF
Benign
0.046
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs201300786; hg19: chrX-25028371; API