rs7953425

Positions:

• chr12-20869264-A-C
• chr12-20869264-A-G

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_019844.4(SLCO1B3):​c.728-5971A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.724 in 152,100 control chromosomes in the GnomAD database, including 42,506 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.72 (42506 hom., cov: 32)
• Consequence: SLCO1B3 NM_019844.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.14

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-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]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.05).
• BA1: GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.878 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SLCO1B3	NM_019844.4	c.728-5971A>C		intron_variant		ENST00000381545.8	NP_062818.1
SLCO1B3-SLCO1B7	NM_001371097.1	c.728-5971A>C		intron_variant			NP_001358026.1
SLCO1B3	NM_001349920.2	c.644-5971A>C		intron_variant			NP_001336849.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SLCO1B3	ENST00000381545.8	c.728-5971A>C		intron_variant		2	NM_019844.4	ENSP00000370956.4
SLCO1B3-SLCO1B7	ENST00000540229.1	c.728-5971A>C		intron_variant		2		ENSP00000441269.1

Frequencies

GnomAD3 genomes AF: 0.725 AC: 110141 AN: 151980 Hom.: 42509 Cov.: 32

Gnomad AFR AF: 0.436

Gnomad AMI AF: 0.855

Gnomad AMR AF: 0.812

Gnomad ASJ AF: 0.890

Gnomad EAS AF: 0.719

Gnomad SAS AF: 0.898

Gnomad FIN AF: 0.746

Gnomad MID AF: 0.883

Gnomad NFE AF: 0.853

Gnomad OTH AF: 0.779

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.724 AC: 110165 AN: 152100 Hom.: 42506 Cov.: 32 AF XY: 0.723 AC XY: 53794 AN XY: 74364

Gnomad4 AFR AF: 0.436

Gnomad4 AMR AF: 0.812

Gnomad4 ASJ AF: 0.890

Gnomad4 EAS AF: 0.719

Gnomad4 SAS AF: 0.900

Gnomad4 FIN AF: 0.746

Gnomad4 NFE AF: 0.853

Gnomad4 OTH AF: 0.778

Alfa AF: 0.762 Hom.: 5681

Bravo AF: 0.717

Asia WGS AF: 0.764 AC: 2656 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.1
CADD	Benign	1.5
DANN	Benign	0.20

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

Other links and lift over

dbSNP: rs7953425; hg19: chr12-21022198;