rs3746807

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_033409.4(SLC52A3):​c.456C>T​(p.Pro152Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.105 in 1,613,980 control chromosomes in the GnomAD database, including 9,579 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.10 ( 806 hom., cov: 32)
Exomes 𝑓: 0.11 ( 8773 hom. )

Consequence

SLC52A3
NM_033409.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.14

Publications

11 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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.48).
BP6
Variant 20-765319-G-A is Benign according to our data. Variant chr20-765319-G-A is described in ClinVar as Benign. ClinVar VariationId is 262234.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-1.14 with no splicing effect.
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.17 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SLC52A3NM_033409.4 linkc.456C>T p.Pro152Pro synonymous_variant Exon 2 of 5 ENST00000645534.1 NP_212134.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SLC52A3ENST00000645534.1 linkc.456C>T p.Pro152Pro synonymous_variant Exon 2 of 5 NM_033409.4 ENSP00000494193.1

Frequencies

GnomAD3 genomes
AF:
0.101
AC:
15334
AN:
152016
Hom.:
805
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.105
Gnomad AMI
AF:
0.129
Gnomad AMR
AF:
0.0837
Gnomad ASJ
AF:
0.0505
Gnomad EAS
AF:
0.179
Gnomad SAS
AF:
0.0527
Gnomad FIN
AF:
0.0983
Gnomad MID
AF:
0.0696
Gnomad NFE
AF:
0.103
Gnomad OTH
AF:
0.0917
GnomAD2 exomes
AF:
0.0957
AC:
24062
AN:
251434
AF XY:
0.0941
show subpopulations
Gnomad AFR exome
AF:
0.105
Gnomad AMR exome
AF:
0.0544
Gnomad ASJ exome
AF:
0.0575
Gnomad EAS exome
AF:
0.177
Gnomad FIN exome
AF:
0.107
Gnomad NFE exome
AF:
0.103
Gnomad OTH exome
AF:
0.0908
GnomAD4 exome
AF:
0.106
AC:
154446
AN:
1461846
Hom.:
8773
Cov.:
33
AF XY:
0.105
AC XY:
76092
AN XY:
727228
show subpopulations
African (AFR)
AF:
0.101
AC:
3365
AN:
33480
American (AMR)
AF:
0.0566
AC:
2532
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0562
AC:
1468
AN:
26136
East Asian (EAS)
AF:
0.217
AC:
8616
AN:
39700
South Asian (SAS)
AF:
0.0652
AC:
5623
AN:
86258
European-Finnish (FIN)
AF:
0.109
AC:
5821
AN:
53414
Middle Eastern (MID)
AF:
0.0480
AC:
277
AN:
5768
European-Non Finnish (NFE)
AF:
0.109
AC:
120737
AN:
1111970
Other (OTH)
AF:
0.0995
AC:
6007
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
9363
18725
28088
37450
46813
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4430
8860
13290
17720
22150
<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:
0.101
AC:
15363
AN:
152134
Hom.:
806
Cov.:
32
AF XY:
0.0998
AC XY:
7425
AN XY:
74368
show subpopulations
African (AFR)
AF:
0.105
AC:
4369
AN:
41494
American (AMR)
AF:
0.0836
AC:
1277
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.0505
AC:
175
AN:
3466
East Asian (EAS)
AF:
0.180
AC:
926
AN:
5152
South Asian (SAS)
AF:
0.0521
AC:
251
AN:
4818
European-Finnish (FIN)
AF:
0.0983
AC:
1043
AN:
10614
Middle Eastern (MID)
AF:
0.0714
AC:
21
AN:
294
European-Non Finnish (NFE)
AF:
0.103
AC:
6992
AN:
67988
Other (OTH)
AF:
0.0907
AC:
192
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.495
Heterozygous variant carriers
0
687
1373
2060
2746
3433
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
174
348
522
696
870
<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:
0.102
Hom.:
3941
Bravo
AF:
0.102
Asia WGS
AF:
0.125
AC:
436
AN:
3478
EpiCase
AF:
0.0961
EpiControl
AF:
0.0962

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 23, 2017
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

p.Pro152Pro in exon 2 of SLC52A3: This variant is not expected to have clinical significance because it does not alter an amino acid residue, is not located wit hin the splice consensus sequence, and has been identified in 18.19% (1570/8630) of East Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exa c.broadinstitute.org; dbSNP rs3746807). -

not provided Benign:2
Jul 03, 2018
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Brown-Vialetto-van Laere syndrome 1 Benign:1
Feb 04, 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
-0.48
CADD
Benign
5.3
DANN
Benign
0.75
PhyloP100
-1.1
Mutation Taster
=99/1
polymorphism (auto)

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: rs3746807; hg19: chr20-745963; COSMIC: COSV54077450; API