12-20815805-C-T

Position:

chr12-20815805-C-T

Variant summary

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

The NM_019844.4(SLCO1B3):c.67C>T(p.Arg23Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000616 in 1,591,918 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 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000060 ( 0 hom. )

Consequence

SLCO1B3
NM_019844.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: -0.879

Variant links:

Genes affected

SLCO1B3 (HGNC:10961): (solute carrier organic anion transporter family member 1B3) This gene encodes a liver-specific member of the organic anion transporter family. The encoded protein is a transmembrane receptor that mediates the sodium-independent uptake of endogenous and xenobiotic compounds and plays a critical role in bile acid and bilirubin transport. Mutations in this gene are a cause of Rotor type hyperbilirubinemia. Alternative splicing of this gene and the use of alternative promoters results in transcript variants encoding different isoforms that differ in their tissue specificity. [provided by RefSeq, Mar 2017]

SLCO1B3 links:

SLCO1B3-SLCO1B7 (HGNC:54403): (SLCO1B3-SLCO1B7 readthrough) This locus represents naturally occurring readthrough transcription between the neighboring SLCO1B3 (solute carrier organic anion transporter family member 1B3) and SLCO1B7 (solute carrier organic anion transporter family member 1B7 (putative)) genes on chromosome 12. The readthrough transcript encodes a protein that shares sequence identity with both the upstream and downstream genes. [provided by RefSeq, Jun 2019]

SLCO1B3-SLCO1B7 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=0.045157105).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLCO1B3	NM_019844.4 linkuse as main transcript	c.67C>T	p.Arg23Cys	missense_variant	3/16	ENST00000381545.8	NP_062818.1	Q9NPD5-1B3KP78
SLCO1B3-SLCO1B7	NM_001371097.1 linkuse as main transcript	c.67C>T	p.Arg23Cys	missense_variant	1/16		NP_001358026.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLCO1B3	ENST00000381545.8 linkuse as main transcript	c.67C>T	p.Arg23Cys	missense_variant	3/16	2	NM_019844.4	ENSP00000370956.4		Q9NPD5-1
SLCO1B3-SLCO1B7	ENST00000540229.1 linkuse as main transcript	c.67C>T	p.Arg23Cys	missense_variant	1/16	2		ENSP00000441269.1		A0A0A6YYJ9

Frequencies

GnomAD3 genomes

AF:

0.0000789

AC:

AN:

151996

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.000103

Gnomad OTH

AF:

0.000479

GnomAD3 exomes

AF:

0.0000588

AC:

AN:

238248

Hom.:

AF XY:

0.0000465

AC XY:

AN XY:

129148

show subpopulations

Gnomad AFR exome

AF:

0.0000637

Gnomad AMR exome

AF:

0.000124

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000576

Gnomad SAS exome

AF:

0.0000353

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000555

Gnomad OTH exome

AF:

0.000175

GnomAD4 exome

AF:

0.0000597

AC:

AN:

1439922

Hom.:

Cov.:

AF XY:

0.0000573

AC XY:

AN XY:

715924

show subpopulations

Gnomad4 AFR exome

AF:

0.0000606

Gnomad4 AMR exome

AF:

0.000254

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000767

Gnomad4 SAS exome

AF:

0.0000365

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000600

Gnomad4 OTH exome

AF:

0.0000168

GnomAD4 genome

AF:

0.0000789

AC:

AN:

151996

Hom.:

Cov.:

AF XY:

0.0000808

AC XY:

AN XY:

74218

show subpopulations

Gnomad4 AFR

AF:

0.0000725

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.000479

Alfa

AF:

0.0000565

Hom.:

Bravo

AF:

0.0000982

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000906

AC:

Asia WGS

AF:

0.000868

AC:

AN:

3472

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Rotor syndrome

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Jan 18, 2022	- -
Uncertain significance, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Mar 29, 2023	- -

not specified

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 07, 2024

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.49

CADD

Benign

0.32

DANN

Benign

0.47

DEOGEN2

Benign

0.074

.;T;T;.;.

Eigen

Benign

-1.9

Eigen_PC

Benign

-1.9

FATHMM_MKL

Benign

0.0055

LIST_S2

Benign

0.17

T;.;T;T;T

M_CAP

Benign

0.0077

MetaRNN

Benign

0.045

T;T;T;T;T

MetaSVM

Benign

-0.96

MutationAssessor

Benign

-2.0

.;N;N;.;.

PrimateAI

Benign

0.18

PROVEAN

Benign

3.1

N;N;N;N;N

REVEL

Benign

0.11

Sift

Benign

0.19

T;T;T;T;T

Sift4G

Benign

0.18

T;T;T;T;T

Polyphen

0.0

.;B;B;.;.

Vest4

0.12, 0.12, 0.12

MVP

0.12

MPC

0.0060, 0.0075

ClinPred

0.032

GERP RS

-4.0

Varity_R

0.039

gMVP

0.21

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