rs199585821

Variant summary

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

The NM_001940.4(ATN1):​c.530G>A​(p.Arg177Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000117 in 1,613,274 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

ATN1
NM_001940.4 missense

Scores

3
15

Clinical Significance

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

Conservation

PhyloP100: 1.98

Publications

6 publications found
Variant links:
Genes affected
ATN1 (HGNC:3033): (atrophin 1) Dentatorubral pallidoluysian atrophy (DRPLA) is a rare neurodegenerative disorder characterized by cerebellar ataxia, myoclonic epilepsy, choreoathetosis, and dementia. The disorder is related to the expansion from 7-35 copies to 49-93 copies of a trinucleotide repeat (CAG/CAA) within this gene. The encoded protein includes a serine repeat and a region of alternating acidic and basic amino acids, as well as the variable glutamine repeat. Alternative splicing results in two transcripts variants that encode the same protein. [provided by RefSeq, Jul 2016]
ATN1 Gene-Disease associations (from GenCC):
  • congenital hypotonia, epilepsy, developmental delay, and digital anomalies
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics
  • dentatorubral-pallidoluysian atrophy
    Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

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=0.16952768).
BP6
Variant 12-6935797-G-A is Benign according to our data. Variant chr12-6935797-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 3131119.
BS2
High AC in GnomAd4 at 17 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001940.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ATN1
NM_001940.4
MANE Select
c.530G>Ap.Arg177Gln
missense
Exon 5 of 10NP_001931.2P54259
ATN1
NM_001007026.2
c.530G>Ap.Arg177Gln
missense
Exon 5 of 10NP_001007027.1P54259
ATN1
NM_001424176.1
c.530G>Ap.Arg177Gln
missense
Exon 5 of 10NP_001411105.1P54259

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ATN1
ENST00000396684.3
TSL:1 MANE Select
c.530G>Ap.Arg177Gln
missense
Exon 5 of 10ENSP00000379915.2P54259
ATN1
ENST00000356654.8
TSL:1
c.530G>Ap.Arg177Gln
missense
Exon 5 of 10ENSP00000349076.3P54259
ATN1
ENST00000882240.1
c.530G>Ap.Arg177Gln
missense
Exon 5 of 11ENSP00000552299.1

Frequencies

GnomAD3 genomes
AF:
0.000112
AC:
17
AN:
151476
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000486
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000263
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:
0.000162
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000880
AC:
22
AN:
250114
AF XY:
0.0000813
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000116
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000118
AC:
172
AN:
1461678
Hom.:
0
Cov.:
38
AF XY:
0.000102
AC XY:
74
AN XY:
727160
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.000268
AC:
12
AN:
44706
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26112
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53404
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.000139
AC:
155
AN:
1111878
Other (OTH)
AF:
0.0000662
AC:
4
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.491
Heterozygous variant carriers
0
11
23
34
46
57
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.000112
AC:
17
AN:
151596
Hom.:
0
Cov.:
31
AF XY:
0.000122
AC XY:
9
AN XY:
74040
show subpopulations
African (AFR)
AF:
0.0000485
AC:
2
AN:
41236
American (AMR)
AF:
0.000262
AC:
4
AN:
15242
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5156
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4800
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10482
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
67902
Other (OTH)
AF:
0.00
AC:
0
AN:
2102
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
1
2
4
5
6
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:
0.000207
Hom.:
0
Bravo
AF:
0.000128
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.0000741
AC:
9
EpiCase
AF:
0.000382
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Inborn genetic diseases (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.081
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
24
DANN
Benign
0.95
DEOGEN2
Benign
0.18
T
Eigen
Benign
-0.071
Eigen_PC
Benign
-0.030
FATHMM_MKL
Uncertain
0.83
D
LIST_S2
Benign
0.86
D
M_CAP
Benign
0.052
D
MetaRNN
Benign
0.17
T
MetaSVM
Benign
-0.93
T
MutationAssessor
Benign
0.46
N
PhyloP100
2.0
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-0.29
N
REVEL
Benign
0.13
Sift
Uncertain
0.0070
D
Sift4G
Benign
0.68
T
Polyphen
0.98
D
Vest4
0.28
MVP
0.47
MPC
0.43
ClinPred
0.071
T
GERP RS
3.4
Varity_R
0.13
gMVP
0.14
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: rs199585821; hg19: chr12-7044960; COSMIC: COSV63112292; COSMIC: COSV63112292; API