chrX-77681861-A-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_000489.6(ATRX):​c.3395T>A​(p.Ile1132Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000997 in 1,203,800 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 3 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 12/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000018 ( 0 hom., 2 hem., cov: 23)
Exomes 𝑓: 0.0000091 ( 0 hom. 1 hem. )

Consequence

ATRX
NM_000489.6 missense

Scores

4
12

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.56
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.12248689).
BP6
Variant X-77681861-A-T is Benign according to our data. Variant chrX-77681861-A-T is described in ClinVar as [Likely_benign]. Clinvar id is 2730262.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Hemizygotes in GnomAd4 at 2 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATRXNM_000489.6 linkc.3395T>A p.Ile1132Lys missense_variant 9/35 ENST00000373344.11 NP_000480.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATRXENST00000373344.11 linkc.3395T>A p.Ile1132Lys missense_variant 9/351 NM_000489.6 ENSP00000362441.4 P46100-1

Frequencies

GnomAD3 genomes
AF:
0.00000903
AC:
1
AN:
110773
Hom.:
0
Cov.:
23
AF XY:
0.0000302
AC XY:
1
AN XY:
33087
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:
0.000281
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
GnomAD3 exomes
AF:
0.0000113
AC:
2
AN:
176827
Hom.:
0
AF XY:
0.0000159
AC XY:
1
AN XY:
62739
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000146
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:
0.00000915
AC:
10
AN:
1092970
Hom.:
0
Cov.:
30
AF XY:
0.00000278
AC XY:
1
AN XY:
359278
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000332
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000180
AC:
2
AN:
110830
Hom.:
0
Cov.:
23
AF XY:
0.0000603
AC XY:
2
AN XY:
33154
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000564
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Alpha thalassemia-X-linked intellectual disability syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 17, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.18
BayesDel_addAF
Benign
-0.056
T
BayesDel_noAF
Benign
-0.13
CADD
Benign
13
DANN
Benign
0.86
DEOGEN2
Benign
0.022
.;.;T;T
FATHMM_MKL
Benign
0.34
N
LIST_S2
Benign
0.84
T;.;T;T
M_CAP
Uncertain
0.17
D
MetaRNN
Benign
0.12
T;T;T;T
MetaSVM
Uncertain
-0.27
T
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-1.1
N;N;.;.
REVEL
Uncertain
0.33
Sift
Uncertain
0.0020
D;D;.;.
Sift4G
Benign
0.91
T;T;T;T
Polyphen
0.20
B;.;.;.
Vest4
0.40
MutPred
0.31
Gain of solvent accessibility (P = 0.012);.;.;.;
MVP
0.83
MPC
0.045
ClinPred
0.15
T
GERP RS
3.0
gMVP
0.31

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: rs587780285; hg19: chrX-76937353; API