rs151229044

Variant summary

Our verdict is Benign. The variant received -18 ACMG points: 0P and 18B. BP4_ModerateBP6_Very_StrongBS1BS2

The NM_033409.4(SLC52A3):​c.339C>T​(p.Phe113Phe) variant causes a synonymous change. The variant allele was found at a frequency of 0.00111 in 1,613,158 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.00076 ( 1 hom., cov: 32)
Exomes 𝑓: 0.0011 ( 2 hom. )

Consequence

SLC52A3
NM_033409.4 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 4.20

Publications

0 publications found
Variant links:
Genes affected
SLC52A3 (HGNC:16187): (solute carrier family 52 member 3) This gene encodes a riboflavin transporter protein that is strongly expressed in the intestine and likely plays a role in intestinal absorption of riboflavin. The protein is predicted to have eleven transmembrane domains and a cell surface localization signal in the C-terminus. Mutations at this locus have been associated with Brown-Vialetto-Van Laere syndrome and Fazio-Londe disease. [provided by RefSeq, Mar 2012]
SLC52A3 Gene-Disease associations (from GenCC):
  • Brown-Vialetto-van Laere syndrome 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, G2P, ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), PanelApp Australia
  • progressive bulbar palsy
    Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -18 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 20-765436-G-A is Benign according to our data. Variant chr20-765436-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 543063.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000762 (116/152324) while in subpopulation SAS AF = 0.00352 (17/4826). AF 95% confidence interval is 0.00224. There are 1 homozygotes in GnomAd4. There are 52 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC52A3NM_033409.4 linkc.339C>T p.Phe113Phe synonymous_variant Exon 2 of 5 ENST00000645534.1 NP_212134.3 Q9NQ40-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC52A3ENST00000645534.1 linkc.339C>T p.Phe113Phe synonymous_variant Exon 2 of 5 NM_033409.4 ENSP00000494193.1 Q9NQ40-1

Frequencies

GnomAD3 genomes
AF:
0.000762
AC:
116
AN:
152206
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
Gnomad ASJ
AF:
0.000288
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00352
Gnomad FIN
AF:
0.000376
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00121
Gnomad OTH
AF:
0.000479
GnomAD2 exomes
AF:
0.00105
AC:
260
AN:
247002
AF XY:
0.00130
show subpopulations
Gnomad AFR exome
AF:
0.000125
Gnomad AMR exome
AF:
0.000644
Gnomad ASJ exome
AF:
0.000501
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000949
Gnomad NFE exome
AF:
0.00116
Gnomad OTH exome
AF:
0.000994
GnomAD4 exome
AF:
0.00115
AC:
1677
AN:
1460834
Hom.:
2
Cov.:
32
AF XY:
0.00119
AC XY:
865
AN XY:
726610
show subpopulations
African (AFR)
AF:
0.000209
AC:
7
AN:
33464
American (AMR)
AF:
0.000809
AC:
36
AN:
44508
Ashkenazi Jewish (ASJ)
AF:
0.000498
AC:
13
AN:
26104
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39664
South Asian (SAS)
AF:
0.00309
AC:
266
AN:
86130
European-Finnish (FIN)
AF:
0.000281
AC:
15
AN:
53370
Middle Eastern (MID)
AF:
0.00104
AC:
6
AN:
5766
European-Non Finnish (NFE)
AF:
0.00111
AC:
1237
AN:
1111478
Other (OTH)
AF:
0.00161
AC:
97
AN:
60350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
116
232
349
465
581
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
50
100
150
200
250
<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:
0.000762
AC:
116
AN:
152324
Hom.:
1
Cov.:
32
AF XY:
0.000698
AC XY:
52
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41568
American (AMR)
AF:
0.000392
AC:
6
AN:
15296
Ashkenazi Jewish (ASJ)
AF:
0.000288
AC:
1
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00352
AC:
17
AN:
4826
European-Finnish (FIN)
AF:
0.000376
AC:
4
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00121
AC:
82
AN:
68036
Other (OTH)
AF:
0.000474
AC:
1
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.511
Heterozygous variant carriers
0
6
11
17
22
28
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.00113
Hom.:
0
Bravo
AF:
0.000805

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Sep 08, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 01, 2022
CeGaT Center for Human Genetics Tuebingen
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

SLC52A3: BP4, BP7 -

not specified Benign:1
Aug 23, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

p.Phe113Phe in exon 2 of SLC52A3: This variant is not expected to have clinical significance because it does not alter an amino acid residue and is not located within the splice consensus sequence. It has been identified in 0.37% (56/15284) of South Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://ex ac.broadinstitute.org; dbSNP rs151229044). -

Inborn genetic diseases Benign:1
Jul 11, 2019
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

SLC52A3-related disorder Benign:1
Nov 21, 2019
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Brown-Vialetto-van Laere syndrome 1 Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
11
DANN
Benign
0.70
PhyloP100
4.2
PromoterAI
-0.012
Neutral
Mutation Taster
=75/25
polymorphism

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

Other links and lift over

dbSNP: rs151229044; hg19: chr20-746080; API