chr8-144359376-A-G

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.

The NM_024531.5(SLC52A2):c.83A>G(p.Asn28Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000113 in 1,613,580 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. N28N) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

SLC52A2
NM_024531.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.63

Publications

2 publications found

Variant links:

Genes affected

SLC52A2 (HGNC:30224): (solute carrier family 52 member 2) This gene encodes a membrane protein which belongs to the riboflavin transporter family. In humans, riboflavin must be obtained by intestinal absorption because it cannot be synthesized by the body. The water-soluble vitamin riboflavin is processed to the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) which then act as intermediaries in many cellular metabolic reactions. Paralogous members of the riboflavin transporter gene family are located on chromosomes 17 and 20. Unlike other members of this family, this gene has higher expression in brain tissue than small intestine. Alternative splicing of this gene results in multiple transcript variants encoding the same protein. Mutations in this gene have been associated with Brown-Vialetto-Van Laere syndrome 2 - an autosomal recessive progressive neurologic disorder characterized by deafness, bulbar dysfunction, and axial and limb hypotonia. [provided by RefSeq, Jul 2012]

SLC52A2 links:

FBXL6 (HGNC:13603): (F-box and leucine rich repeat protein 6) This gene encodes a member of a family of proteins that are characterized by an F-box motif. The encoded protein also contains leucine-rich repeats. F-box-containing proteins comprise one of the subunits of the SCF (SKP1-cullin-F-box) complex, which functions in phosphorylation-dependent ubiquitination. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2013]

FBXL6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_024531.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SLC52A2	NM_001363118.2	MANE Select	c.83A>G	p.Asn28Ser	missense	Exon 2 of 5	NP_001350047.1
SLC52A2	NM_001253815.2		c.83A>G	p.Asn28Ser	missense	Exon 2 of 5	NP_001240744.1
SLC52A2	NM_001253816.2		c.83A>G	p.Asn28Ser	missense	Exon 2 of 5	NP_001240745.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SLC52A2	ENST00000643944.2	MANE Select	c.83A>G	p.Asn28Ser	missense	Exon 2 of 5	ENSP00000496184.2
SLC52A2	ENST00000329994.7	TSL:1	c.83A>G	p.Asn28Ser	missense	Exon 2 of 5	ENSP00000333638.2
FBXL6	ENST00000530142.5	TSL:1	n.1T>C		non_coding_transcript_exon	Exon 1 of 8

Frequencies

GnomAD3 genomes

AF:

0.000105

AC:

AN:

151736

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000727

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000417

Gnomad FIN

AF:

0.000473

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000883

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000919

AC:

AN:

250318

AF XY:

0.0000737

show subpopulations

Gnomad AFR exome

AF:

0.000124

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000924

Gnomad NFE exome

AF:

0.000133

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.000114

AC:

166

AN:

1461726

Hom.:

Cov.:

AF XY:

0.000110

AC XY:

AN XY:

727168

show subpopulations

African (AFR)

AF:

0.000179

AC:

AN:

33476

American (AMR)

AF:

0.0000447

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.000131

AC:

AN:

53352

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.000131

AC:

146

AN:

1111950

Other (OTH)

AF:

0.0000497

AC:

AN:

60382

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000105

AC:

AN:

151854

Hom.:

Cov.:

AF XY:

0.000135

AC XY:

AN XY:

74214

show subpopulations

African (AFR)

AF:

0.0000725

AC:

AN:

41398

American (AMR)

AF:

0.00

AC:

AN:

15256

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3462

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.000418

AC:

AN:

4788

European-Finnish (FIN)

AF:

0.000473

AC:

AN:

10564

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000883

AC:

AN:

67914

Other (OTH)

AF:

0.00

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.494

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000104

Hom.:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000115

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Brown-Vialetto-van Laere syndrome 2 (1)

Inborn genetic diseases (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Benign

-0.19

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.70

Eigen

Uncertain

0.22

Eigen_PC

Benign

0.033

FATHMM_MKL

Benign

0.63

M_CAP

Pathogenic

0.45

MetaRNN

Benign

0.30

MetaSVM

Uncertain

-0.061

MutationAssessor

Uncertain

2.8

PhyloP100

4.6

PrimateAI

Uncertain

0.55

PROVEAN

Pathogenic

-4.7

REVEL

Uncertain

0.39

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.0090

Polyphen

1.0

Vest4

0.52

MVP

0.65

MPC

0.11

ClinPred

0.87

GERP RS

1.7

PromoterAI

-0.020

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.27

gMVP

0.79

Mutation Taster

=79/21

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.45

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.45

Position offset: -5

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over