NM_000489.6:c.798C>T

Variant summary

Our verdict is Benign. The variant received -17 ACMG points: 0P and 17B. BP4_StrongBP6_Very_StrongBP7BS2

The NM_000489.6(ATRX):​c.798C>T​(p.Tyr266Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000131 in 1,210,018 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 38 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000089 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 0.00013 ( 0 hom. 38 hem. )

Consequence

ATRX
NM_000489.6 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 1.34

Publications

0 publications found
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 Gene-Disease associations (from GenCC):
  • alpha thalassemia-X-linked intellectual disability syndrome
    Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet, Ambry Genetics
  • ATR-X-related syndrome
    Inheritance: XL Classification: DEFINITIVE Submitted by: ClinGen
  • intellectual disability-hypotonic facies syndrome, X-linked, 1
    Inheritance: XL Classification: MODERATE Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant X-77684458-G-A is Benign according to our data. Variant chrX-77684458-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 533640.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=1.34 with no splicing effect.
BS2
High Hemizygotes in GnomAdExome4 at 38 XL gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ATRXNM_000489.6 linkc.798C>T p.Tyr266Tyr synonymous_variant Exon 9 of 35 ENST00000373344.11 NP_000480.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ATRXENST00000373344.11 linkc.798C>T p.Tyr266Tyr synonymous_variant Exon 9 of 35 1 NM_000489.6 ENSP00000362441.4 P46100-1

Frequencies

GnomAD3 genomes
AF:
0.0000891
AC:
10
AN:
112280
Hom.:
0
Cov.:
23
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:
0.000169
Gnomad OTH
AF:
0.000665
GnomAD2 exomes
AF:
0.0000819
AC:
15
AN:
183061
AF XY:
0.00
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000184
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000135
AC:
148
AN:
1097685
Hom.:
0
Cov.:
32
AF XY:
0.000105
AC XY:
38
AN XY:
363077
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26386
American (AMR)
AF:
0.00
AC:
0
AN:
35192
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19372
East Asian (EAS)
AF:
0.00
AC:
0
AN:
30195
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54086
European-Finnish (FIN)
AF:
0.0000247
AC:
1
AN:
40526
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4135
European-Non Finnish (NFE)
AF:
0.000171
AC:
144
AN:
841715
Other (OTH)
AF:
0.0000651
AC:
3
AN:
46078
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.473
Heterozygous variant carriers
0
8
16
24
32
40
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.0000890
AC:
10
AN:
112333
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
34533
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30972
American (AMR)
AF:
0.00
AC:
0
AN:
10594
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2654
East Asian (EAS)
AF:
0.00
AC:
0
AN:
3583
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2742
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
6101
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
216
European-Non Finnish (NFE)
AF:
0.000169
AC:
9
AN:
53266
Other (OTH)
AF:
0.000657
AC:
1
AN:
1523
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.570
Heterozygous variant carriers
0
1
2
4
5
6
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000712
Hom.:
0
Bravo
AF:
0.0000642
EpiCase
AF:
0.000218
EpiControl
AF:
0.0000593

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Alpha thalassemia-X-linked intellectual disability syndrome Benign:1
Oct 17, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
Apr 13, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

ATRX-related disorder Benign:1
Feb 09, 2021
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
7.3
DANN
Benign
0.47
PhyloP100
1.3

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

Other links and lift over

dbSNP: rs376341197; hg19: chrX-76939950; API