chr18-11689611-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_182978.4(GNAL):​c.48G>A​(p.Gly16=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00029 in 1,347,028 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0014 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00015 ( 2 hom. )

Consequence

GNAL
NM_182978.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.0420
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.72).
BP6
Variant 18-11689611-G-A is Benign according to our data. Variant chr18-11689611-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 1112127.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.042 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0014 (212/151968) while in subpopulation AFR AF= 0.00501 (208/41490). AF 95% confidence interval is 0.00446. There are 0 homozygotes in gnomad4. There are 96 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 212 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GNALNM_182978.4 linkuse as main transcriptc.48G>A p.Gly16= synonymous_variant 1/12 ENST00000334049.11
GNALXM_006722324.4 linkuse as main transcriptc.48G>A p.Gly16= synonymous_variant 1/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GNALENST00000334049.11 linkuse as main transcriptc.48G>A p.Gly16= synonymous_variant 1/121 NM_182978.4 P38405-2

Frequencies

GnomAD3 genomes
AF:
0.00140
AC:
213
AN:
151860
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00503
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000272
AC:
1
AN:
3672
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
2300
show subpopulations
Gnomad AFR exome
AF:
0.00962
Gnomad AMR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000150
AC:
179
AN:
1195060
Hom.:
2
Cov.:
30
AF XY:
0.000151
AC XY:
88
AN XY:
581020
show subpopulations
Gnomad4 AFR exome
AF:
0.00638
Gnomad4 AMR exome
AF:
0.000532
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000213
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000403
Gnomad4 OTH exome
AF:
0.000389
GnomAD4 genome
AF:
0.00140
AC:
212
AN:
151968
Hom.:
0
Cov.:
33
AF XY:
0.00129
AC XY:
96
AN XY:
74298
show subpopulations
Gnomad4 AFR
AF:
0.00501
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000854
Hom.:
0
Bravo
AF:
0.00142
Asia WGS
AF:
0.000882
AC:
3
AN:
3416

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Dystonic disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 20, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
6.9
DANN
Benign
0.96

Splicing

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: rs543230597; hg19: chr18-11689610; API