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rs1006404746

Variant summary

Our verdict is Benign. Variant got -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_139058.3(ARX):​c.663C>T​(p.Thr221=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000374 in 1,150,184 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 8 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. T221T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., 2 hem., cov: 23)
Exomes 𝑓: 0.000026 ( 0 hom. 6 hem. )

Consequence

ARX
NM_139058.3 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.0200
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 Benign. Variant got -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant X-25013332-G-A is Benign according to our data. Variant chrX-25013332-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 386858.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-0.02 with no splicing effect.
BS2
High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARXNM_139058.3 linkuse as main transcriptc.663C>T p.Thr221= synonymous_variant 2/5 ENST00000379044.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARXENST00000379044.5 linkuse as main transcriptc.663C>T p.Thr221= synonymous_variant 2/51 NM_139058.3 P1

Frequencies

GnomAD3 genomes
AF:
0.000145
AC:
16
AN:
110346
Hom.:
0
Cov.:
23
AF XY:
0.0000610
AC XY:
2
AN XY:
32780
show subpopulations
Gnomad AFR
AF:
0.000491
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:
0.0000191
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000533
AC:
5
AN:
93801
Hom.:
0
AF XY:
0.0000609
AC XY:
2
AN XY:
32865
show subpopulations
Gnomad AFR exome
AF:
0.000729
Gnomad AMR exome
AF:
0.0000527
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000260
AC:
27
AN:
1039838
Hom.:
0
Cov.:
32
AF XY:
0.0000177
AC XY:
6
AN XY:
339242
show subpopulations
Gnomad4 AFR exome
AF:
0.000203
Gnomad4 AMR exome
AF:
0.0000360
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000244
Gnomad4 OTH exome
AF:
0.0000227
GnomAD4 genome
AF:
0.000145
AC:
16
AN:
110346
Hom.:
0
Cov.:
23
AF XY:
0.0000610
AC XY:
2
AN XY:
32780
show subpopulations
Gnomad4 AFR
AF:
0.000491
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:
0.0000191
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.000136

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJul 14, 2020- -
Intellectual disability, X-linked, with or without seizures, arx-related;C3463992:Developmental and epileptic encephalopathy, 1 Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeDec 30, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
8.9
DANN
Benign
0.94

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

LitVar

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

Other links and lift over

dbSNP: rs1006404746; hg19: chrX-25031449; API