chr2-218262913-C-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP7

The NM_170699.3(GPBAR1):​c.189C>T​(p.Leu63=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000139 in 1,613,674 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 (★).

Frequency

Genomes: 𝑓 0.00079 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

GPBAR1
NM_170699.3 synonymous

Scores

2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 0.942
Variant links:
Genes affected
GPBAR1 (HGNC:19680): (G protein-coupled bile acid receptor 1) This gene encodes a member of the G protein-coupled receptor (GPCR) superfamily. This enzyme functions as a cell surface receptor for bile acids. Treatment of cells expressing this GPCR with bile acids induces the production of intracellular cAMP, activation of a MAP kinase signaling pathway, and internalization of the receptor. The receptor is implicated in the suppression of macrophage functions and regulation of energy homeostasis by bile acids. Alternative splicing results in multiple transcript variants encoding the same protein. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.53).
BP7
Synonymous conserved (PhyloP=0.942 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GPBAR1NM_170699.3 linkuse as main transcriptc.189C>T p.Leu63= synonymous_variant 2/2 ENST00000519574.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPBAR1ENST00000519574.2 linkuse as main transcriptc.189C>T p.Leu63= synonymous_variant 2/21 NM_170699.3 P1
GPBAR1ENST00000479077.5 linkuse as main transcriptc.189C>T p.Leu63= synonymous_variant 2/22 P1
GPBAR1ENST00000521462.1 linkuse as main transcriptc.189C>T p.Leu63= synonymous_variant 2/22 P1
GPBAR1ENST00000522678.5 linkuse as main transcriptc.189C>T p.Leu63= synonymous_variant 2/22 P1

Frequencies

GnomAD3 genomes
AF:
0.000769
AC:
117
AN:
152120
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00239
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00105
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:
0.000958
GnomAD3 exomes
AF:
0.000149
AC:
37
AN:
247998
Hom.:
0
AF XY:
0.0000668
AC XY:
9
AN XY:
134672
show subpopulations
Gnomad AFR exome
AF:
0.00176
Gnomad AMR exome
AF:
0.000291
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:
0.0000712
AC:
104
AN:
1461436
Hom.:
0
Cov.:
31
AF XY:
0.0000619
AC XY:
45
AN XY:
726996
show subpopulations
Gnomad4 AFR exome
AF:
0.00233
Gnomad4 AMR exome
AF:
0.000269
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:
0.00000180
Gnomad4 OTH exome
AF:
0.000199
GnomAD4 genome
AF:
0.000788
AC:
120
AN:
152238
Hom.:
0
Cov.:
32
AF XY:
0.000820
AC XY:
61
AN XY:
74428
show subpopulations
Gnomad4 AFR
AF:
0.00246
Gnomad4 AMR
AF:
0.00105
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:
0.000948
Alfa
AF:
0.000383
Hom.:
0
Bravo
AF:
0.000888
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

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

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingEurofins Ntd Llc (ga)Mar 14, 2017- -
GPBAR1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 16, 2021This 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). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.53
CADD
Benign
8.7
DANN
Benign
0.83

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs111925653; hg19: chr2-219127636; API