chr2-218262986-G-A

Position:

chr2-218262986-G-A

Variant summary

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

The NM_170699.3(GPBAR1):c.262G>A(p.Val88Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000595 in 1,613,862 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. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000056 ( 0 hom. )

Consequence

GPBAR1
NM_170699.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 0.368

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:

Genome browser will be placed here

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=0.035541296).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
GPBAR1	NM_170699.3 linkuse as main transcript	c.262G>A	p.Val88Ile	missense_variant	2/2	ENST00000519574.2	NP_733800.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris
GPBAR1	ENST00000519574.2 linkuse as main transcript	c.262G>A	p.Val88Ile	missense_variant	2/2	1	NM_170699.3	ENSP00000430202	P1
GPBAR1	ENST00000479077.5 linkuse as main transcript	c.262G>A	p.Val88Ile	missense_variant	2/2	2		ENSP00000430698	P1
GPBAR1	ENST00000521462.1 linkuse as main transcript	c.262G>A	p.Val88Ile	missense_variant	2/2	2		ENSP00000428824	P1
GPBAR1	ENST00000522678.5 linkuse as main transcript	c.262G>A	p.Val88Ile	missense_variant	2/2	2		ENSP00000430886	P1

Frequencies

GnomAD3 genomes

AF:

0.0000921

AC:

AN:

152058

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000589

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000361

AC:

AN:

249074

Hom.:

AF XY:

0.0000296

AC XY:

AN XY:

135138

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000111

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000354

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000561

AC:

AN:

1461686

Hom.:

Cov.:

AF XY:

0.0000578

AC XY:

AN XY:

727124

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.000112

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000302

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000504

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74394

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000589

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000194

Gnomad4 SAS

AF:

0.000208

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.000155

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000495

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 10, 2022

The c.262G>A (p.V88I) alteration is located in exon 2 (coding exon 1) of the GPBAR1 gene. This alteration results from a G to A substitution at nucleotide position 262, causing the valine (V) at amino acid position 88 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Eurofins Ntd Llc (ga)

Apr 20, 2017

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.074

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.63

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.050

T;T;T;T

Eigen

Benign

-0.59

Eigen_PC

Benign

-0.45

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.59

.;.;.;T

M_CAP

Benign

0.0026

MetaRNN

Benign

0.036

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.46

N;N;N;N

MutationTaster

Benign

1.0

N;N;N;N

PrimateAI

Benign

0.39

PROVEAN

Benign

-0.010

N;N;N;N

REVEL

Benign

0.038

Sift

Benign

0.39

T;T;T;T

Sift4G

Benign

0.27

T;T;T;T

Polyphen

0.029

B;B;B;B

Vest4

0.074

MVP

0.15

MPC

0.039

ClinPred

0.010

GERP RS

2.4

Varity_R

0.047

gMVP

0.16

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

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over