chrX-77508391-C-T

Position:

chrX-77508391-C-T

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 2P and 7B. PM1BP4_ModerateBP6BS2

The NM_000489.6(ATRX):c.7439G>A(p.Arg2480Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000281 in 1,209,533 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 7 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 11/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000036 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 0.000027 ( 0 hom. 6 hem. )

Consequence

ATRX
NM_000489.6 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 3.92

Variant links:

Genes affected

ATRX (HGNC:886): (ATRX chromatin remodeler) The protein encoded by this gene contains an ATPase/helicase domain, and thus it belongs to the SWI/SNF family of chromatin remodeling proteins. This protein is found to undergo cell cycle-dependent phosphorylation, which regulates its nuclear matrix and chromatin association, and suggests its involvement in the gene regulation at interphase and chromosomal segregation in mitosis. Mutations in this gene are associated with X-linked syndromes exhibiting cognitive disabilities as well as alpha-thalassemia (ATRX) syndrome. These mutations have been shown to cause diverse changes in the pattern of DNA methylation, which may provide a link between chromatin remodeling, DNA methylation, and gene expression in developmental processes. Multiple alternatively spliced transcript variants encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2017]

ATRX links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

PM1

In a modified_residue Omega-N-methylarginine (size 0) in uniprot entity ATRX_HUMAN

BP4

Computational evidence support a benign effect (MetaRNN=0.17299953).

BP6

Variant X-77508391-C-T is Benign according to our data. Variant chrX-77508391-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 991719.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Likely_benign=1}.

BS2

High Hemizygotes in GnomAdExome4 at 6 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ATRX	NM_000489.6 link	c.7439G>A	p.Arg2480Lys	missense_variant	35/35	ENST00000373344.11	NP_000480.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ATRX	ENST00000373344.11 link	c.7439G>A	p.Arg2480Lys	missense_variant	35/35	1	NM_000489.6	ENSP00000362441.4		P46100-1

Frequencies

GnomAD3 genomes

AF:

0.0000358

AC:

AN:

111586

Hom.:

Cov.:

AF XY:

0.0000296

AC XY:

AN XY:

33788

show subpopulations

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:

0.0000753

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000164

AC:

AN:

183273

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

67759

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.0000367

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000273

AC:

AN:

1097947

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

363317

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000356

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000358

AC:

AN:

111586

Hom.:

Cov.:

AF XY:

0.0000296

AC XY:

AN XY:

33788

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000753

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000264

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000149

AC:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Alpha thalassemia-X-linked intellectual disability syndrome

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Aug 02, 2023	- -
Uncertain significance, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 11, 2020	- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Nov 13, 2019

In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.28

BayesDel_addAF

Benign

-0.067

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Benign

0.95

FATHMM_MKL

Uncertain

0.76

LIST_S2

Uncertain

0.89

D;.

M_CAP

Uncertain

0.13

MetaRNN

Benign

0.17

T;T

MetaSVM

Uncertain

0.20

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-0.71

N;N

REVEL

Benign

0.24

Sift

Uncertain

0.017

D;D

Sift4G

Benign

0.22

T;T

Vest4

0.17

MVP

0.73

MPC

0.052

ClinPred

0.26

GERP RS

4.9

gMVP

0.57

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over