rs122445112

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP2PP3_ModeratePP5

The NM_000489.6(ATRX):ā€‹c.6811A>Gā€‹(p.Arg2271Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000911 in 1,097,786 control chromosomes in the GnomAD database, with no homozygous occurrence. There are no hemizygote samples in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: not found (cov: 22)
Exomes š‘“: 9.1e-7 ( 0 hom. 0 hem. )

Consequence

ATRX
NM_000489.6 missense

Scores

10
4
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 2.31
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_pathogenic. Variant got 6 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.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.879
PP5
Variant X-77523290-T-C is Pathogenic according to our data. Variant chrX-77523290-T-C is described in ClinVar as [Pathogenic]. Clinvar id is 11746.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chrX-77523290-T-C is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATRXNM_000489.6 linkuse as main transcriptc.6811A>G p.Arg2271Gly missense_variant 31/35 ENST00000373344.11 NP_000480.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATRXENST00000373344.11 linkuse as main transcriptc.6811A>G p.Arg2271Gly missense_variant 31/351 NM_000489.6 ENSP00000362441 P3P46100-1

Frequencies

GnomAD3 genomes
Cov.:
22
GnomAD3 exomes
AF:
0.00000546
AC:
1
AN:
183231
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
67749
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:
0.0000122
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
9.11e-7
AC:
1
AN:
1097786
Hom.:
0
Cov.:
30
AF XY:
0.00
AC XY:
0
AN XY:
363352
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:
0.00000119
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
22
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Intellectual disability-hypotonic facies syndrome, X-linked Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMNov 15, 2005- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.51
D
BayesDel_noAF
Pathogenic
0.49
CADD
Benign
23
DANN
Uncertain
1.0
FATHMM_MKL
Uncertain
0.88
D
LIST_S2
Pathogenic
0.99
D;.
M_CAP
Pathogenic
0.93
D
MetaRNN
Pathogenic
0.88
D;D
MetaSVM
Pathogenic
0.82
D
MutationTaster
Benign
1.0
A;A
PrimateAI
Pathogenic
0.81
D
PROVEAN
Pathogenic
-6.3
D;D
REVEL
Pathogenic
0.87
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0030
D;D
Vest4
0.59
MutPred
0.73
Loss of stability (P = 0.0425);.;
MVP
0.99
MPC
2.9
ClinPred
0.97
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
gMVP
0.91

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: rs122445112; hg19: chrX-76778768; COSMIC: COSV64876526; COSMIC: COSV64876526; API