chrX-25010254-G-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_139058.3(ARX):c.1119+6C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000031 in 1,194,456 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 6 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00015 ( 0 hom., 2 hem., cov: 20)

Exomes 𝑓: 0.000020 ( 0 hom. 4 hem. )

Consequence

ARX
NM_139058.3 splice_region, intron

Scores

Splicing: ADA: 0.000008511

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.890

Publications

0 publications found

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]

ARX Gene-Disease associations (from GenCC):

genetic developmental and epileptic encephalopathy
Inheritance: AD, XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
intellectual disability, X-linked, with or without seizures, ARX-related
Inheritance: XL Classification: DEFINITIVE, MODERATE Submitted by: Ambry Genetics, G2P
Partington syndrome
Inheritance: XL Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
X-linked complex neurodevelopmental disorder
Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
X-linked lissencephaly with abnormal genitalia
Inheritance: XL Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Ambry Genetics
infantile spasms
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
corpus callosum agenesis-abnormal genitalia syndrome
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
infantile epileptic-dyskinetic encephalopathy
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
non-syndromic X-linked intellectual disability
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet
X-linked spasticity-intellectual disability-epilepsy syndrome
Inheritance: XL Classification: SUPPORTIVE Submitted by: Orphanet

ARX links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.69).

BP6

Variant X-25010254-G-A is Benign according to our data. Variant chrX-25010254-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 384736.

BS2

High AC in GnomAd4 at 15 AD,XL gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_139058.3. 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
	ARX	NM_139058.3	MANE Select	c.1119+6C>T		splice_region intron	N/A	NP_620689.1	Q96QS3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ARX	ENST00000379044.5	TSL:1 MANE Select	c.1119+6C>T		splice_region intron	N/A	ENSP00000368332.4	Q96QS3

Frequencies

GnomAD3 genomes

AF:

0.000147

AC:

AN:

102127

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000477

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000109

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:

0.0000196

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000441

AC:

AN:

181359

AF XY:

0.0000151

show subpopulations

Gnomad AFR exome

AF:

0.000624

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.0000201

AC:

AN:

1092296

Hom.:

Cov.:

AF XY:

0.0000111

AC XY:

AN XY:

358958

show subpopulations

African (AFR)

AF:

0.000572

AC:

AN:

26218

American (AMR)

AF:

0.00

AC:

AN:

34996

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19137

East Asian (EAS)

AF:

0.00

AC:

AN:

29897

South Asian (SAS)

AF:

0.00

AC:

AN:

53924

European-Finnish (FIN)

AF:

0.00

AC:

AN:

40096

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4102

European-Non Finnish (NFE)

AF:

0.00000835

AC:

AN:

838240

Other (OTH)

AF:

0.00

AC:

AN:

45686

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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

AF:

0.000147

AC:

AN:

102160

Hom.:

Cov.:

AF XY:

0.0000755

AC XY:

AN XY:

26486

show subpopulations

African (AFR)

AF:

0.000513

AC:

AN:

27315

American (AMR)

AF:

0.00

AC:

AN:

9202

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2566

East Asian (EAS)

AF:

0.00

AC:

AN:

3201

South Asian (SAS)

AF:

0.00

AC:

AN:

2057

European-Finnish (FIN)

AF:

0.00

AC:

AN:

4710

Middle Eastern (MID)

AF:

0.00

AC:

AN:

189

European-Non Finnish (NFE)

AF:

0.0000196

AC:

AN:

50916

Other (OTH)

AF:

0.00

AC:

AN:

1346

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.000147

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Intellectual disability, X-linked, with or without seizures, ARX-related;C3463992:Developmental and epileptic encephalopathy, 1 (1)

not provided (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.69

CADD

Benign

(source)

DANN

Benign

0.47

PhyloP100

0.89

Mutation Taster

=97/3

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.0000085

dbscSNV1_RF

Benign

0.0

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over