X-25007287-C-T

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6BP7BS2

The ENST00000379044.5(ARX):​c.1272G>A​(p.Pro424=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000699 in 1,115,462 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 28 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. P424P) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.000076 ( 0 hom. 28 hem. )

Consequence

ARX
ENST00000379044.5 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -8.73
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant X-25007287-C-T is Benign according to our data. Variant chrX-25007287-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 96449.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=3}.
BP7
Synonymous conserved (PhyloP=-8.73 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 28 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARXNM_139058.3 linkuse as main transcriptc.1272G>A p.Pro424= synonymous_variant 4/5 ENST00000379044.5 NP_620689.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARXENST00000379044.5 linkuse as main transcriptc.1272G>A p.Pro424= synonymous_variant 4/51 NM_139058.3 ENSP00000368332 P1

Frequencies

GnomAD3 genomes
AF:
0.0000180
AC:
2
AN:
111321
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33555
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000935
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:
0.0000189
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000715
AC:
4
AN:
55983
Hom.:
0
AF XY:
0.0000902
AC XY:
1
AN XY:
11087
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000245
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:
0.0000452
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000757
AC:
76
AN:
1004141
Hom.:
0
Cov.:
32
AF XY:
0.0000877
AC XY:
28
AN XY:
319247
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000184
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:
0.0000860
Gnomad4 OTH exome
AF:
0.0000708
GnomAD4 genome
AF:
0.0000180
AC:
2
AN:
111321
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33555
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.0000935
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000189
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000302

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not specified Benign:2
Likely benign, criteria provided, single submitterclinical testingGenetic Services Laboratory, University of ChicagoMay 13, 2016- -
Likely benign, criteria provided, single submitterclinical testingGeneDxNov 30, 2017This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 04, 2013- -
Intellectual disability, X-linked, with or without seizures, arx-related;C3463992:Developmental and epileptic encephalopathy, 1 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 22, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
0.19
DANN
Benign
0.95

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs398124507; hg19: chrX-25025404; API