12-20855086-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_019844.4(SLCO1B3):ā€‹c.143T>Cā€‹(p.Met48Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000219 in 1,459,688 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.000022 ( 0 hom. )

Consequence

SLCO1B3
NM_019844.4 missense

Scores

2
11
6

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.26
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLCO1B3NM_019844.4 linkuse as main transcriptc.143T>C p.Met48Thr missense_variant 4/16 ENST00000381545.8
SLCO1B3-SLCO1B7NM_001371097.1 linkuse as main transcriptc.143T>C p.Met48Thr missense_variant 2/16
SLCO1B3NM_001349920.2 linkuse as main transcriptc.59T>C p.Met20Thr missense_variant 2/14

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLCO1B3ENST00000381545.8 linkuse as main transcriptc.143T>C p.Met48Thr missense_variant 4/162 NM_019844.4 P1Q9NPD5-1
SLCO1B3ENST00000261196.6 linkuse as main transcriptc.143T>C p.Met48Thr missense_variant 2/141 P1Q9NPD5-1
SLCO1B3ENST00000540853.5 linkuse as main transcriptc.143T>C p.Met48Thr missense_variant 3/81
SLCO1B3ENST00000545880.1 linkuse as main transcript upstream_gene_variant 5

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000120
AC:
3
AN:
251002
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135678
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.0000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000219
AC:
32
AN:
1459688
Hom.:
0
Cov.:
30
AF XY:
0.0000193
AC XY:
14
AN XY:
726238
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:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000261
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.000103
Hom.:
0
Bravo
AF:
0.0000227
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

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

Submissions by phenotype

SLCO1B3-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesNov 21, 2022The SLCO1B3 c.143T>C variant is predicted to result in the amino acid substitution p.Met48Thr. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0026% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-21008020-T-C). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.43
BayesDel_addAF
Uncertain
0.091
D
BayesDel_noAF
Uncertain
0.0
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.38
.;T;T;.;.
Eigen
Uncertain
0.32
Eigen_PC
Uncertain
0.25
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.82
T;.;T;T;D
M_CAP
Benign
0.053
D
MetaRNN
Uncertain
0.65
D;D;D;D;D
MetaSVM
Benign
-0.69
T
MutationAssessor
Uncertain
2.5
.;M;M;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.67
T
PROVEAN
Pathogenic
-5.6
D;D;D;D;D
REVEL
Uncertain
0.36
Sift
Benign
0.064
T;D;D;T;D
Sift4G
Uncertain
0.039
D;D;D;D;D
Polyphen
0.77
.;P;P;.;.
Vest4
0.85, 0.85, 0.88, 0.88
MVP
0.33
MPC
0.034, 0.046
ClinPred
0.93
D
GERP RS
3.8
Varity_R
0.88
gMVP
0.74

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: rs774202726; hg19: chr12-21008020; API