rs76888098

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_ModerateBP6_ModerateBP7BS1BS2

The NM_182978.4(GNAL):​c.591C>T​(p.Ser197Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000429 in 1,609,298 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.00062 ( 2 hom., cov: 33)
Exomes 𝑓: 0.00041 ( 7 hom. )

Consequence

GNAL
NM_182978.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 1.07

Publications

1 publications found
Variant links:
Genes affected
GNAL (HGNC:4388): (G protein subunit alpha L) This gene encodes a stimulatory G protein alpha subunit which mediates odorant signaling in the olfactory epithelium. This protein couples dopamine type 1 receptors and adenosine A2A receptors and is widely expressed in the central nervous system. Mutations in this gene have been associated with dystonia 25 and this gene is located in a susceptibility region for bipolar disorder and schizophrenia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]
GNAL Gene-Disease associations (from GenCC):
  • dystonia 25
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.28).
BP6
Variant 18-11753912-C-T is Benign according to our data. Variant chr18-11753912-C-T is described in ClinVar as Benign. ClinVar VariationId is 455978.Status of the report is criteria_provided_single_submitter, 1 stars.
BP7
Synonymous conserved (PhyloP=1.07 with no splicing effect.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.000617 (94/152326) while in subpopulation EAS AF = 0.0152 (79/5190). AF 95% confidence interval is 0.0125. There are 2 homozygotes in GnomAd4. There are 41 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 94 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
GNALNM_182978.4 linkc.591C>T p.Ser197Ser synonymous_variant Exon 4 of 12 ENST00000334049.11 NP_892023.1
GNALNM_001369387.1 linkc.360C>T p.Ser120Ser synonymous_variant Exon 4 of 12 ENST00000423027.8 NP_001356316.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
GNALENST00000334049.11 linkc.591C>T p.Ser197Ser synonymous_variant Exon 4 of 12 1 NM_182978.4 ENSP00000334051.5
GNALENST00000423027.8 linkc.360C>T p.Ser120Ser synonymous_variant Exon 4 of 12 1 NM_001369387.1 ENSP00000408489.2

Frequencies

GnomAD3 genomes
AF:
0.000618
AC:
94
AN:
152208
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0152
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00191
GnomAD2 exomes
AF:
0.00115
AC:
290
AN:
251416
AF XY:
0.00107
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0153
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.000652
GnomAD4 exome
AF:
0.000410
AC:
597
AN:
1456972
Hom.:
7
Cov.:
29
AF XY:
0.000400
AC XY:
290
AN XY:
725340
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33368
American (AMR)
AF:
0.00
AC:
0
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26100
East Asian (EAS)
AF:
0.0133
AC:
528
AN:
39638
South Asian (SAS)
AF:
0.0000464
AC:
4
AN:
86152
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5762
European-Non Finnish (NFE)
AF:
0.00000903
AC:
10
AN:
1107580
Other (OTH)
AF:
0.000913
AC:
55
AN:
60234
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
33
65
98
130
163
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.000617
AC:
94
AN:
152326
Hom.:
2
Cov.:
33
AF XY:
0.000550
AC XY:
41
AN XY:
74480
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41574
American (AMR)
AF:
0.000654
AC:
10
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.0152
AC:
79
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.00189
AC:
4
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
5
10
15
20
25
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:
0.000200
Hom.:
1
Bravo
AF:
0.000665
Asia WGS
AF:
0.00375
AC:
13
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

GNAL-related disorder Benign:1
Apr 01, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Dystonic disorder Benign:1
Nov 27, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.28
CADD
Benign
11
DANN
Benign
0.66
PhyloP100
1.1
PromoterAI
-0.042
Neutral
Mutation Taster
=75/25
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: rs76888098; hg19: chr18-11753911; API