rs71640247

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000452.3(SLC10A2):​c.197G>A​(p.Trp66Ter) variant causes a stop gained change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000269 in 1,614,164 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00025 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

SLC10A2
NM_000452.3 stop_gained

Scores

5
1
1

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:3

Conservation

PhyloP100: 7.87
Variant links:
Genes affected
SLC10A2 (HGNC:10906): (solute carrier family 10 member 2) This gene encodes a sodium/bile acid cotransporter. This transporter is the primary mechanism for uptake of intestinal bile acids by apical cells in the distal ileum. Bile acids are the catabolic product of cholesterol metabolism, so this protein is also critical for cholesterol homeostasis. Mutations in this gene cause primary bile acid malabsorption (PBAM); muatations in this gene may also be associated with other diseases of the liver and intestines, such as familial hypertriglyceridemia (FHTG). [provided by RefSeq, Mar 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAd4 at 38 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC10A2NM_000452.3 linkuse as main transcriptc.197G>A p.Trp66Ter stop_gained 1/6 ENST00000245312.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC10A2ENST00000245312.5 linkuse as main transcriptc.197G>A p.Trp66Ter stop_gained 1/61 NM_000452.3 P1

Frequencies

GnomAD3 genomes
AF:
0.000250
AC:
38
AN:
152188
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00230
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000353
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000199
AC:
50
AN:
251362
Hom.:
0
AF XY:
0.000191
AC XY:
26
AN XY:
135844
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000867
Gnomad ASJ exome
AF:
0.000695
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000343
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000272
AC:
397
AN:
1461858
Hom.:
0
Cov.:
31
AF XY:
0.000276
AC XY:
201
AN XY:
727222
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000112
Gnomad4 ASJ exome
AF:
0.000727
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000314
Gnomad4 OTH exome
AF:
0.000331
GnomAD4 genome
AF:
0.000249
AC:
38
AN:
152306
Hom.:
0
Cov.:
32
AF XY:
0.000228
AC XY:
17
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.000120
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00230
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000353
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000446
Hom.:
0
Bravo
AF:
0.000272
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000349
AC:
3
ExAC
AF:
0.000231
AC:
28
EpiCase
AF:
0.000436
EpiControl
AF:
0.000593

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:1Uncertain:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJan 01, 2020- -
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJan 12, 2024This sequence change creates a premature translational stop signal (p.Trp66*) in the SLC10A2 gene. It is expected to result in an absent or disrupted protein product. However, the current clinical and genetic evidence is not sufficient to establish whether loss-of-function variants in SLC10A2 cause disease. This variant is present in population databases (rs71640247, gnomAD 0.06%). This variant has not been reported in the literature in individuals affected with SLC10A2-related conditions. ClinVar contains an entry for this variant (Variation ID: 872454). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Bile acid malabsorption, primary, 1 Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingBaylor GeneticsMar 27, 2019This variant was determined to be pathogenic according to ACMG Guidelines, 2015 [PMID:25741868]. -
SLC10A2-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJan 10, 2024The SLC10A2 c.197G>A variant is predicted to result in premature protein termination (p.Trp66*). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.068% of alleles in individuals of Ashkenazi Jewish descent in gnomAD. Loss-of-function has not been established as a disease mechanism for this gene, and therefore the clinical significance of this variant is currently uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.66
CADD
Pathogenic
43
DANN
Uncertain
1.0
Eigen
Pathogenic
0.90
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Pathogenic
0.98
D
MutationTaster
Benign
1.0
A
Vest4
0.80
GERP RS
5.4

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: rs71640247; hg19: chr13-103718403; API