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18-11689670-C-T

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 0P and 14B. BP4_StrongBP6_ModerateBS1BS2

The NM_182978.4(GNAL):​c.107C>T​(p.Pro36Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000575 in 1,441,002 control chromosomes in the GnomAD database, including 8 homozygotes. In-silico tool predicts a benign outcome for this variant. 10/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00064 ( 8 hom. )

Consequence

GNAL
NM_182978.4 missense

Scores

2
3
11

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.661
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 -14 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.03971693).
BP6
Variant 18-11689670-C-T is Benign according to our data. Variant chr18-11689670-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1210893.Status of the report is criteria_provided_single_submitter, 1 stars.
BS1
Variant frequency is greater than expected in population amr. gnomad4_exome allele frequency = 0.000641 (827/1289168) while in subpopulation AMR AF= 0.00549 (122/22210). AF 95% confidence interval is 0.0047. There are 8 homozygotes in gnomad4_exome. There are 424 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck.
BS2
High AC in GnomAdExome4 at 827 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GNALNM_182978.4 linkuse as main transcriptc.107C>T p.Pro36Leu missense_variant 1/12 ENST00000334049.11
GNALXM_006722324.4 linkuse as main transcriptc.107C>T p.Pro36Leu missense_variant 1/6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GNALENST00000334049.11 linkuse as main transcriptc.107C>T p.Pro36Leu missense_variant 1/121 NM_182978.4 P38405-2
GNALENST00000585590.1 linkuse as main transcript upstream_gene_variant 2

Frequencies

GnomAD3 genomes
AF:
0.00000659
AC:
1
AN:
151834
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0151
AC:
947
AN:
62574
Hom.:
12
AF XY:
0.0145
AC XY:
531
AN XY:
36704
show subpopulations
Gnomad AFR exome
AF:
0.0154
Gnomad AMR exome
AF:
0.0155
Gnomad ASJ exome
AF:
0.0209
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0144
Gnomad FIN exome
AF:
0.00984
Gnomad NFE exome
AF:
0.0160
Gnomad OTH exome
AF:
0.0208
GnomAD4 exome
AF:
0.000641
AC:
827
AN:
1289168
Hom.:
8
Cov.:
30
AF XY:
0.000668
AC XY:
424
AN XY:
634710
show subpopulations
Gnomad4 AFR exome
AF:
0.00105
Gnomad4 AMR exome
AF:
0.00549
Gnomad4 ASJ exome
AF:
0.00362
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00182
Gnomad4 FIN exome
AF:
0.000578
Gnomad4 NFE exome
AF:
0.000395
Gnomad4 OTH exome
AF:
0.000867
GnomAD4 genome
AF:
0.00000659
AC:
1
AN:
151834
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74182
show subpopulations
Gnomad4 AFR
AF:
0.0000242
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.00354
Hom.:
0
ExAC
AF:
0.0000383
AC:
1

ClinVar

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

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxJul 17, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
11
DANN
Uncertain
0.99
Eigen
Benign
-0.66
Eigen_PC
Benign
-0.78
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.41
T
M_CAP
Pathogenic
0.90
D
MetaRNN
Benign
0.040
T
MetaSVM
Benign
-0.71
T
MutationTaster
Benign
0.011
P
PrimateAI
Pathogenic
0.80
T
PROVEAN
Benign
-0.12
N
REVEL
Benign
0.23
Sift
Uncertain
0.028
D
Sift4G
Uncertain
0.025
D
Vest4
0.068
MPC
1.3
ClinPred
0.0067
T
GERP RS
2.0
gMVP
0.27

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: rs7236061; hg19: chr18-11689669; COSMIC: COSV61849177; COSMIC: COSV61849177; API