NM_000489.6:c.7432C>G

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_000489.6(ATRX):​c.7432C>G​(p.Pro2478Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000827 in 1,209,423 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 4 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 11/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P2478S) has been classified as Benign.

Frequency

Genomes: 𝑓 0.000027 ( 0 hom., 1 hem., cov: 22)
Exomes 𝑓: 0.0000064 ( 0 hom. 3 hem. )

Consequence

ATRX
NM_000489.6 missense

Scores

6
8

Clinical Significance

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

Conservation

PhyloP100: 3.38

Publications

1 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 -7 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.071941644).
BP6
Variant X-77508398-G-C is Benign according to our data. Variant chrX-77508398-G-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 521610.
BS2
High Hemizygotes in GnomAdExome4 at 3 XL gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000489.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ATRX
NM_000489.6
MANE Select
c.7432C>Gp.Pro2478Ala
missense
Exon 35 of 35NP_000480.3
ATRX
NM_138270.5
c.7318C>Gp.Pro2440Ala
missense
Exon 34 of 34NP_612114.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ATRX
ENST00000373344.11
TSL:1 MANE Select
c.7432C>Gp.Pro2478Ala
missense
Exon 35 of 35ENSP00000362441.4
ATRX
ENST00000395603.7
TSL:1
c.7318C>Gp.Pro2440Ala
missense
Exon 34 of 34ENSP00000378967.3
ATRX
ENST00000480283.5
TSL:1
n.*7060C>G
non_coding_transcript_exon
Exon 36 of 36ENSP00000480196.1

Frequencies

GnomAD3 genomes
AF:
0.0000269
AC:
3
AN:
111382
Hom.:
0
Cov.:
22
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000954
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000561
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
GnomAD2 exomes
AF:
0.0000436
AC:
8
AN:
183339
AF XY:
0.0000295
show subpopulations
Gnomad AFR exome
AF:
0.0000760
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000505
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000638
AC:
7
AN:
1097989
Hom.:
0
Cov.:
31
AF XY:
0.00000826
AC XY:
3
AN XY:
363353
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
26400
American (AMR)
AF:
0.00
AC:
0
AN:
35205
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
19384
East Asian (EAS)
AF:
0.000132
AC:
4
AN:
30205
South Asian (SAS)
AF:
0.00
AC:
0
AN:
54125
European-Finnish (FIN)
AF:
0.0000247
AC:
1
AN:
40527
Middle Eastern (MID)
AF:
0.000242
AC:
1
AN:
4130
European-Non Finnish (NFE)
AF:
0.00000119
AC:
1
AN:
841927
Other (OTH)
AF:
0.00
AC:
0
AN:
46086
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
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
GnomAD4 genome
AF:
0.0000269
AC:
3
AN:
111434
Hom.:
0
Cov.:
22
AF XY:
0.0000297
AC XY:
1
AN XY:
33662
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
30697
American (AMR)
AF:
0.0000953
AC:
1
AN:
10491
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
2639
East Asian (EAS)
AF:
0.000563
AC:
2
AN:
3552
South Asian (SAS)
AF:
0.00
AC:
0
AN:
2647
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
5960
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
218
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
53051
Other (OTH)
AF:
0.00
AC:
0
AN:
1498
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
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:
0.00
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000412
AC:
5

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Apr 04, 2017
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Acquired hemoglobin H disease;C1845055:Alpha thalassemia-X-linked intellectual disability syndrome;C4759781:Intellectual disability-hypotonic facies syndrome, X-linked, 1 Uncertain:1
Oct 31, 2018
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Alpha thalassemia-X-linked intellectual disability syndrome Benign:1
Oct 07, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.29
CADD
Benign
22
DANN
Benign
0.65
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.84
T
M_CAP
Uncertain
0.098
D
MetaRNN
Benign
0.072
T
MetaSVM
Uncertain
-0.19
T
PhyloP100
3.4
PrimateAI
Uncertain
0.59
T
PROVEAN
Benign
-0.99
N
REVEL
Uncertain
0.30
Sift
Uncertain
0.0050
D
Sift4G
Benign
0.23
T
Vest4
0.25
MVP
0.75
MPC
0.032
ClinPred
0.081
T
GERP RS
4.0
gMVP
0.34
Mutation Taster
=99/1
polymorphism

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: rs199543136; hg19: chrX-76763876; API