20-763971-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_033409.4(SLC52A3):​c.600C>T​(p.Pro200=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00855 in 1,598,728 control chromosomes in the GnomAD database, including 378 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 46 hom., cov: 32)
Exomes 𝑓: 0.0083 ( 332 hom. )

Consequence

SLC52A3
NM_033409.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: -2.68
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 20-763971-G-A is Benign according to our data. Variant chr20-763971-G-A is described in ClinVar as [Benign]. Clinvar id is 262236.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.68 with no splicing effect.
BA1
GnomAd4 highest subpopulation (SAS) allele frequency at 95% confidence interval = 0.065 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC52A3NM_033409.4 linkuse as main transcriptc.600C>T p.Pro200= synonymous_variant 3/5 ENST00000645534.1 NP_212134.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC52A3ENST00000645534.1 linkuse as main transcriptc.600C>T p.Pro200= synonymous_variant 3/5 NM_033409.4 ENSP00000494193 P1Q9NQ40-1

Frequencies

GnomAD3 genomes
AF:
0.0104
AC:
1576
AN:
151746
Hom.:
45
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0159
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00335
Gnomad ASJ
AF:
0.0363
Gnomad EAS
AF:
0.0432
Gnomad SAS
AF:
0.0707
Gnomad FIN
AF:
0.00170
Gnomad MID
AF:
0.0127
Gnomad NFE
AF:
0.00202
Gnomad OTH
AF:
0.0106
GnomAD3 exomes
AF:
0.0174
AC:
3805
AN:
218302
Hom.:
116
AF XY:
0.0203
AC XY:
2399
AN XY:
118236
show subpopulations
Gnomad AFR exome
AF:
0.0172
Gnomad AMR exome
AF:
0.00317
Gnomad ASJ exome
AF:
0.0360
Gnomad EAS exome
AF:
0.0437
Gnomad SAS exome
AF:
0.0734
Gnomad FIN exome
AF:
0.000876
Gnomad NFE exome
AF:
0.00306
Gnomad OTH exome
AF:
0.0114
GnomAD4 exome
AF:
0.00835
AC:
12079
AN:
1446864
Hom.:
332
Cov.:
61
AF XY:
0.0101
AC XY:
7283
AN XY:
718584
show subpopulations
Gnomad4 AFR exome
AF:
0.0183
Gnomad4 AMR exome
AF:
0.00300
Gnomad4 ASJ exome
AF:
0.0354
Gnomad4 EAS exome
AF:
0.0344
Gnomad4 SAS exome
AF:
0.0683
Gnomad4 FIN exome
AF:
0.000950
Gnomad4 NFE exome
AF:
0.00207
Gnomad4 OTH exome
AF:
0.0143
GnomAD4 genome
AF:
0.0104
AC:
1583
AN:
151864
Hom.:
46
Cov.:
32
AF XY:
0.0118
AC XY:
879
AN XY:
74200
show subpopulations
Gnomad4 AFR
AF:
0.0160
Gnomad4 AMR
AF:
0.00335
Gnomad4 ASJ
AF:
0.0363
Gnomad4 EAS
AF:
0.0425
Gnomad4 SAS
AF:
0.0712
Gnomad4 FIN
AF:
0.00170
Gnomad4 NFE
AF:
0.00202
Gnomad4 OTH
AF:
0.0123
Alfa
AF:
0.00507
Hom.:
6
Bravo
AF:
0.00998
Asia WGS
AF:
0.0570
AC:
197
AN:
3478

ClinVar

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

Submissions by phenotype

not specified Benign:2
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineAug 23, 2017p.Pro200Pro in exon 3 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 8.23% (1024/12440) of South Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://ex ac.broadinstitute.org; dbSNP rs16992990). -
not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxAug 12, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Progressive bulbar palsy of childhood;C0796274:Brown-Vialetto-van Laere syndrome 1 Benign:1
Benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsJul 30, 2021- -
Brown-Vialetto-van Laere syndrome 1 Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 30, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.29
DANN
Benign
0.35

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: rs16992990; hg19: chr20-744615; COSMIC: COSV105094371; API