rs121908131

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PP3_StrongPP5

The NM_001195248.2(APTX):​c.617C>T​(p.Pro206Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000991 in 1,614,054 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (no stars).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000010 ( 0 hom. )

Consequence

APTX
NM_001195248.2 missense

Scores

11
6
1

Clinical Significance

Pathogenic no assertion criteria provided P:1

Conservation

PhyloP100: 10.0
Variant links:
Genes affected
APTX (HGNC:15984): (aprataxin) This gene encodes a member of the histidine triad (HIT) superfamily. The encoded protein may play a role in single-stranded DNA repair through its nucleotide-binding activity and its diadenosine polyphosphate hydrolase activity. Mutations in this gene have been associated with ataxia-ocular apraxia. Alternatively spliced transcript variants have been identified for this gene.[provided by RefSeq, Aug 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

PM1
In a domain HIT (size 105) in uniprot entity APTX_HUMAN there are 24 pathogenic changes around while only 2 benign (92%) in NM_001195248.2
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.987
PP5
Variant 9-32984784-G-A is Pathogenic according to our data. Variant chr9-32984784-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 4426.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr9-32984784-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
APTXNM_001195248.2 linkuse as main transcriptc.617C>T p.Pro206Leu missense_variant 6/8 ENST00000379817.7 NP_001182177.2 Q7Z2E3-7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
APTXENST00000379817.7 linkuse as main transcriptc.617C>T p.Pro206Leu missense_variant 6/81 NM_001195248.2 ENSP00000369145.2 Q7Z2E3-7

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000278
AC:
7
AN:
251462
Hom.:
0
AF XY:
0.0000294
AC XY:
4
AN XY:
135910
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000103
AC:
15
AN:
1461888
Hom.:
0
Cov.:
32
AF XY:
0.0000151
AC XY:
11
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000899
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152166
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74342
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00000998
Hom.:
0
Bravo
AF:
0.00000378
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

Ataxia, early-onset, with oculomotor apraxia and hypoalbuminemia Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMOct 01, 2001- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.42
D
BayesDel_noAF
Pathogenic
0.59
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.90
.;.;.;.;.;D;.;.;.;.;D;D;D
Eigen
Uncertain
0.68
Eigen_PC
Uncertain
0.54
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Pathogenic
0.99
D;D;D;D;.;D;.;.;D;D;D;D;D
M_CAP
Uncertain
0.26
D
MetaRNN
Pathogenic
0.99
D;D;D;D;D;D;D;D;D;D;D;D;D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.5
H;.;.;.;.;H;.;.;.;.;.;.;.
PrimateAI
Uncertain
0.68
T
PROVEAN
Pathogenic
-9.7
D;.;.;D;D;D;D;D;D;.;D;D;D
REVEL
Pathogenic
0.89
Sift
Uncertain
0.0010
D;.;.;D;D;D;D;D;D;.;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;D;D;D;D;D;D;D;.;.;.
Polyphen
1.0
.;.;D;D;.;D;.;.;.;.;.;D;.
Vest4
0.98
MutPred
0.94
Gain of MoRF binding (P = 0.0609);.;.;.;.;Gain of MoRF binding (P = 0.0609);.;.;.;.;.;.;.;
MVP
0.98
MPC
0.37
ClinPred
1.0
D
GERP RS
4.9
Varity_R
0.93
gMVP
0.90

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
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: rs121908131; hg19: chr9-32984782; API