rs77271279

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 8P and 9B. PVS1BP6BS1BS2

The NM_006446.5(SLCO1B1):​c.481+1G>T variant causes a splice donor, intron change. The variant allele was found at a frequency of 0.00162 in 1,547,080 control chromosomes in the GnomAD database, including 46 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0086 ( 24 hom., cov: 33)
Exomes 𝑓: 0.00086 ( 22 hom. )

Consequence

SLCO1B1
NM_006446.5 splice_donor, intron

Scores

1
3
2
Splicing: ADA: 1.000
2

Clinical Significance

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

Conservation

PhyloP100: 4.25

Publications

16 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, No cryptic splice site detected. Exon removal results in frameshift change.
BP6
Variant 12-21176898-G-T is Benign according to our data. Variant chr12-21176898-G-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 307938.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00862 (1311/152088) while in subpopulation AFR AF = 0.0297 (1233/41518). AF 95% confidence interval is 0.0283. There are 24 homozygotes in GnomAd4. There are 608 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 24 AR gene

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.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLCO1B1
NM_006446.5
MANE Select
c.481+1G>T
splice_donor intron
N/ANP_006437.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SLCO1B1
ENST00000256958.3
TSL:1 MANE Select
c.481+1G>T
splice_donor intron
N/AENSP00000256958.2Q9Y6L6
SLCO1B1
ENST00000870182.1
c.481+1G>T
splice_donor intron
N/AENSP00000540241.1
SLCO1B1
ENST00000870184.1
c.481+1G>T
splice_donor intron
N/AENSP00000540243.1

Frequencies

GnomAD3 genomes
AF:
0.00861
AC:
1309
AN:
151970
Hom.:
23
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0297
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00334
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00949
Gnomad NFE
AF:
0.000162
Gnomad OTH
AF:
0.00623
GnomAD2 exomes
AF:
0.00235
AC:
589
AN:
250278
AF XY:
0.00185
show subpopulations
Gnomad AFR exome
AF:
0.0312
Gnomad AMR exome
AF:
0.00211
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000797
Gnomad OTH exome
AF:
0.000657
GnomAD4 exome
AF:
0.000858
AC:
1197
AN:
1394992
Hom.:
22
Cov.:
27
AF XY:
0.000716
AC XY:
499
AN XY:
696988
show subpopulations
African (AFR)
AF:
0.0286
AC:
927
AN:
32450
American (AMR)
AF:
0.00238
AC:
106
AN:
44470
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25340
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39354
South Asian (SAS)
AF:
0.0000468
AC:
4
AN:
85490
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52852
Middle Eastern (MID)
AF:
0.00179
AC:
10
AN:
5580
European-Non Finnish (NFE)
AF:
0.0000285
AC:
30
AN:
1051334
Other (OTH)
AF:
0.00206
AC:
120
AN:
58122
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
49
98
147
196
245
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
28
56
84
112
140
<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
AF:
0.00862
AC:
1311
AN:
152088
Hom.:
24
Cov.:
33
AF XY:
0.00818
AC XY:
608
AN XY:
74362
show subpopulations
African (AFR)
AF:
0.0297
AC:
1233
AN:
41518
American (AMR)
AF:
0.00334
AC:
51
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10586
Middle Eastern (MID)
AF:
0.0102
AC:
3
AN:
294
European-Non Finnish (NFE)
AF:
0.000162
AC:
11
AN:
67938
Other (OTH)
AF:
0.00617
AC:
13
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
69
137
206
274
343
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00304
Hom.:
27
Bravo
AF:
0.00959
ESP6500AA
AF:
0.0279
AC:
123
ESP6500EA
AF:
0.000350
AC:
3
ExAC
AF:
0.00288
AC:
350
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000178

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
1
1
1
Rotor syndrome (3)
-
1
-
SLCO1B1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.12
CADD
Pathogenic
30
DANN
Uncertain
0.98
Eigen
Pathogenic
0.79
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Uncertain
0.93
D
PhyloP100
4.3
GERP RS
3.5
Mutation Taster
=13/87
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.85
SpliceAI score (max)
0.84
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.84
Position offset: -1

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

Publications

Other links and lift over

dbSNP: rs77271279; hg19: chr12-21329832; API