Genetic Variant SLCO1B1:p.Leu43Val (chr12-21172692-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_006446.5(SLCO1B1):c.127C>G(p.Leu43Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,488 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. L43I) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SLCO1B1
NM_006446.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.12

Publications

2 publications found

Variant links:

Genes affected

SLCO1B1 (HGNC:10959): (solute carrier organic anion transporter family member 1B1) 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 numerous endogenous compounds including bilirubin, 17-beta-glucuronosyl estradiol and leukotriene C4. This protein is also involved in the removal of drug compounds such as statins, bromosulfophthalein and rifampin from the blood into the hepatocytes. Polymorphisms in the gene encoding this protein are associated with impaired transporter function. [provided by RefSeq, Mar 2009]

SLCO1B1 Gene-Disease associations (from GenCC):

Rotor syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SLCO1B1 links:

ENSG00000257062 (HGNC:):

ENSG00000257062 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006446.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLCO1B1	NM_006446.5	MANE Select	c.127C>G	p.Leu43Val	missense	Exon 3 of 15	NP_006437.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SLCO1B1	ENST00000256958.3	TSL:1 MANE Select	c.127C>G	p.Leu43Val	missense	Exon 3 of 15	ENSP00000256958.2	Q9Y6L6
SLCO1B1	ENST00000870182.1		c.127C>G	p.Leu43Val	missense	Exon 4 of 16	ENSP00000540241.1
SLCO1B1	ENST00000870184.1		c.127C>G	p.Leu43Val	missense	Exon 4 of 16	ENSP00000540243.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000239

AC:

AN:

251168

AF XY:

0.0000147

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.00000411

AC:

AN:

1461488

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727056

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33474

American (AMR)

AF:

0.000112

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26128

East Asian (EAS)

AF:

0.00

AC:

AN:

39644

South Asian (SAS)

AF:

0.00

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53334

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5762

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111802

Other (OTH)

AF:

0.00

AC:

AN:

60378

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ExAC

AF:

0.00000824

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.38

BayesDel_noAF

Benign

-0.59

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.14

Eigen

Benign

-0.24

Eigen_PC

Benign

-0.52

FATHMM_MKL

Benign

0.077

LIST_S2

Benign

0.73

M_CAP

Benign

0.0060

MetaRNN

Uncertain

0.73

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.1

PhyloP100

-1.1

PrimateAI

Benign

0.36

PROVEAN

Uncertain

-2.5

REVEL

Benign

0.062

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.010

Polyphen

1.0

Vest4

0.53

MutPred

0.68

Gain of ubiquitination at K41 (P = 0.0882)

MVP

0.28

MPC

0.060

ClinPred

0.42

GERP RS

1.5

Varity_R

0.32

gMVP

0.45

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over