chrX-77508356-T-C

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2PP2BP4_ModerateBP6_Moderate

The NM_000489.6(ATRX):ā€‹c.7474A>Gā€‹(p.Met2492Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000365 in 1,097,305 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: not found (cov: 23)
Exomes š‘“: 0.0000036 ( 0 hom. 0 hem. )

Consequence

ATRX
NM_000489.6 missense

Scores

8
7

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.25
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 Likely_benign. Variant got -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ATRX. . Gene score misZ 3.1025 (greater than the threshold 3.09). GenCC has associacion of gene with alpha thalassemia-X-linked intellectual disability syndrome, ATR-X-related syndrome, intellectual disability-hypotonic facies syndrome, X-linked, 1.
BP4
Computational evidence support a benign effect (MetaRNN=0.25959867).
BP6
Variant X-77508356-T-C is Benign according to our data. Variant chrX-77508356-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 1394040.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATRXNM_000489.6 linkuse as main transcriptc.7474A>G p.Met2492Val missense_variant 35/35 ENST00000373344.11 NP_000480.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATRXENST00000373344.11 linkuse as main transcriptc.7474A>G p.Met2492Val missense_variant 35/351 NM_000489.6 ENSP00000362441 P3P46100-1

Frequencies

GnomAD3 genomes
Cov.:
23
GnomAD3 exomes
AF:
0.0000109
AC:
2
AN:
183153
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67673
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000730
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000365
AC:
4
AN:
1097305
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
362689
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000568
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000185
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000119
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
23
ExAC
AF:
0.00000824
AC:
1

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), LabcorpJul 09, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Benign
-0.0060
T
BayesDel_noAF
Uncertain
-0.060
CADD
Benign
21
DANN
Benign
0.70
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.87
D;.
M_CAP
Benign
0.068
D
MetaRNN
Benign
0.26
T;T
MetaSVM
Uncertain
0.019
D
MutationTaster
Benign
0.96
D;D
PrimateAI
Uncertain
0.64
T
PROVEAN
Benign
-0.52
N;N
REVEL
Uncertain
0.36
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.011
D;D
Vest4
0.41
MutPred
0.39
Loss of glycosylation at K2490 (P = 0.2316);.;
MVP
0.92
MPC
0.013
ClinPred
0.25
T
GERP RS
4.9
gMVP
0.58

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: rs782741679; hg19: chrX-76763834; API