16-28826865-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM1BS2

The NM_007245.4(ATXN2L):ā€‹c.620A>Gā€‹(p.Lys207Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000564 in 1,579,396 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000046 ( 0 hom., cov: 32)
Exomes š‘“: 0.000057 ( 0 hom. )

Consequence

ATXN2L
NM_007245.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.86
Variant links:
Genes affected
ATXN2L (HGNC:31326): (ataxin 2 like) This gene encodes an ataxin type 2 related protein of unknown function. This protein is a member of the spinocerebellar ataxia (SCAs) family, which is associated with a complex group of neurodegenerative disorders. Several alternatively spliced transcripts encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM1
In a modified_residue N6-acetyllysine (size 0) in uniprot entity ATX2L_HUMAN
BS2
High AC in GnomAd4 at 7 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ATXN2LNM_007245.4 linkuse as main transcriptc.620A>G p.Lys207Arg missense_variant 6/22 ENST00000336783.9 NP_009176.2 Q8WWM7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ATXN2LENST00000336783.9 linkuse as main transcriptc.620A>G p.Lys207Arg missense_variant 6/221 NM_007245.4 ENSP00000338718.4 Q8WWM7-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152150
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:
0.0000882
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000465
AC:
11
AN:
236396
Hom.:
0
AF XY:
0.0000546
AC XY:
7
AN XY:
128206
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000326
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:
0.0000925
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000575
AC:
82
AN:
1427246
Hom.:
0
Cov.:
30
AF XY:
0.0000523
AC XY:
37
AN XY:
707840
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000244
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:
0.0000697
Gnomad4 OTH exome
AF:
0.0000851
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152150
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74320
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:
0.0000882
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.000114
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000247
AC:
3

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 02, 2023The c.620A>G (p.K207R) alteration is located in exon 6 (coding exon 6) of the ATXN2L gene. This alteration results from a A to G substitution at nucleotide position 620, causing the lysine (K) at amino acid position 207 to be replaced by an arginine (R). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.42
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Benign
0.047
.;.;.;T;.;T;.;.;.
Eigen
Uncertain
0.29
Eigen_PC
Uncertain
0.36
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.89
D;D;D;D;D;D;D;D;T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.24
T;T;T;T;T;T;T;T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
1.2
L;L;L;L;L;.;L;.;.
PrimateAI
Uncertain
0.58
T
PROVEAN
Benign
-0.49
N;N;N;N;N;N;N;N;N
REVEL
Benign
0.14
Sift
Benign
0.20
T;T;T;T;T;T;T;T;T
Sift4G
Benign
0.17
T;T;T;T;T;T;T;T;T
Polyphen
0.98
D;D;D;D;.;.;.;.;.
Vest4
0.15
MutPred
0.28
Loss of ubiquitination at K207 (P = 0.0067);Loss of ubiquitination at K207 (P = 0.0067);Loss of ubiquitination at K207 (P = 0.0067);Loss of ubiquitination at K207 (P = 0.0067);Loss of ubiquitination at K207 (P = 0.0067);Loss of ubiquitination at K207 (P = 0.0067);Loss of ubiquitination at K207 (P = 0.0067);.;.;
MVP
0.66
MPC
0.45
ClinPred
0.23
T
GERP RS
5.7
Varity_R
0.17
gMVP
0.39

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.34
Details are displayed if max score is > 0.2
DS_AG_spliceai
0.34
Position offset: 1

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: rs201982360; hg19: chr16-28838186; API