rs4149057

Positions:

• chr12-21178665-T-A
• chr12-21178665-T-C

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_006446.5(SLCO1B1):​c.571T>A​(p.Leu191Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. L191L) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SLCO1B1 NM_006446.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.712

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.992

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLCO1B1	NM_006446.5	c.571T>A	p.Leu191Met	missense_variant	6/15	ENST00000256958.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLCO1B1	ENST00000256958.3	c.571T>A	p.Leu191Met	missense_variant	6/15	1	NM_006446.5	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1454968 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 724338

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: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.40
BayesDel_addAF	Uncertain	0.024	T
BayesDel_noAF	Benign	-0.20
CADD	Benign	12
DANN	Benign	0.96
DEOGEN2	Benign	0.18	T
Eigen	Benign	-0.66
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.22	N
LIST_S2	Uncertain	0.90	D
M_CAP	Benign	0.018	T
MetaRNN	Pathogenic	0.99	D
MetaSVM	Uncertain	-0.25	T
MutationAssessor	Pathogenic	3.9	H
MutationTaster	Benign	0.048	P
PrimateAI	Benign	0.43	T
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.39
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.67
MutPred		0.87		Loss of catalytic residue at L191 (P = 0.0502);
MVP		0.13
MPC		0.069
ClinPred		0.99	D
GERP RS		-1.5
Varity_R		0.80
gMVP		0.57

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-21331599;