Genetic Variant GPBAR1:p.Pro12Ser (chr2-218262758-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_170699.3(GPBAR1):c.34C>T(p.Pro12Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,607,936 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 6.9e-7 ( 0 hom. )

Consequence

GPBAR1
NM_170699.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.320

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]

GPBAR1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.04275304).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GPBAR1	NM_170699.3 link	c.34C>T	p.Pro12Ser	missense_variant	Exon 2 of 2	ENST00000519574.2	NP_733800.1	Q8TDU6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
GPBAR1	ENST00000519574.2 link	c.34C>T	p.Pro12Ser	missense_variant	Exon 2 of 2	1	NM_170699.3	ENSP00000430202.1	Q8TDU6
GPBAR1	ENST00000479077.5 link	c.34C>T	p.Pro12Ser	missense_variant	Exon 2 of 2	2		ENSP00000430698.1	Q8TDU6
GPBAR1	ENST00000521462.1 link	c.34C>T	p.Pro12Ser	missense_variant	Exon 2 of 2	2		ENSP00000428824.1	Q8TDU6
GPBAR1	ENST00000522678.5 link	c.34C>T	p.Pro12Ser	missense_variant	Exon 2 of 2	2		ENSP00000430886.1	Q8TDU6

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152084

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

6.87e-7

AC:

AN:

1455852

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

723514

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

9.02e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152084

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74278

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ExAC

AF:

0.00000827

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.061

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.74

CADD

Benign

0.84

DANN

Benign

0.69

DEOGEN2

Benign

0.039

T;T;T;T

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.080

LIST_S2

Benign

0.44

.;.;.;T

M_CAP

Benign

0.0029

MetaRNN

Benign

0.043

T;T;T;T

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.6

L;L;L;L

PrimateAI

Benign

0.30

PROVEAN

Benign

0.13

N;N;N;N

REVEL

Benign

0.014

Sift

Benign

0.16

T;T;T;T

Sift4G

Benign

0.084

T;T;T;T

Polyphen

0.0

B;B;B;B

Vest4

0.13

MutPred

0.11

Gain of glycosylation at P12 (P = 0.0426);Gain of glycosylation at P12 (P = 0.0426);Gain of glycosylation at P12 (P = 0.0426);Gain of glycosylation at P12 (P = 0.0426);

MVP

0.040

MPC

0.044

ClinPred

0.22

GERP RS

-1.7

Varity_R

0.043

gMVP

0.43

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over