8-144333810-G-A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_031309.6(SCRT1):c.422C>T(p.Ser141Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000328 in 1,221,028 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000028 ( 0 hom. )

Consequence

SCRT1
NM_031309.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.40

Publications

0 publications found

Variant links:

Genes affected

SCRT1 (HGNC:15950): (scratch family transcriptional repressor 1) This gene encodes a C2H2-type zinc finger transcriptional repressor that binds to E-box motifs. The encoded protein may promote neural differention and may be involved in cancers with neuroendocrine features. [provided by RefSeq, Jul 2013]

SCRT1 links:

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 Gene-Disease associations (from GenCC):

Brown-Vialetto-van Laere syndrome 2
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: ClinGen, G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia, Genomics England PanelApp

SLC52A2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.10513142).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_031309.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SCRT1	NM_031309.6	MANE Select	c.422C>T	p.Ser141Leu	missense	Exon 2 of 2	NP_112599.2	Q9BWW7

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SCRT1	ENST00000569446.3	TSL:1 MANE Select	c.422C>T	p.Ser141Leu	missense	Exon 2 of 2	ENSP00000455711.1	Q9BWW7
	SLC52A2	ENST00000675888.1		c.-412G>A		upstream_gene	N/A	ENSP00000502294.1	Q9HAB3

Frequencies

GnomAD3 genomes

AF:

0.00000665

AC:

AN:

150456

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000194

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00

AC:

AN:

364

AF XY:

0.00

Gnomad AFR exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000280

AC:

AN:

1070464

Hom.:

Cov.:

AF XY:

0.00000396

AC XY:

AN XY:

505366

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

22502

American (AMR)

AF:

0.00

AC:

AN:

8058

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

13890

East Asian (EAS)

AF:

0.0000774

AC:

AN:

25850

South Asian (SAS)

AF:

0.00

AC:

AN:

19452

European-Finnish (FIN)

AF:

0.00

AC:

AN:

21004

Middle Eastern (MID)

AF:

0.00

AC:

AN:

2888

European-Non Finnish (NFE)

AF:

0.00000109

AC:

AN:

913924

Other (OTH)

AF:

0.00

AC:

AN:

42896

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.508

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:

0.00000664

AC:

AN:

150564

Hom.:

Cov.:

AF XY:

0.0000136

AC XY:

AN XY:

73554

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41340

American (AMR)

AF:

0.00

AC:

AN:

15174

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3448

East Asian (EAS)

AF:

0.000194

AC:

AN:

5142

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

9862

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67484

Other (OTH)

AF:

0.00

AC:

AN:

2082

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.325

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.68

CADD

Benign

(source)

DANN

Uncertain

0.98

Eigen

Benign

-0.64

Eigen_PC

Benign

-0.69

FATHMM_MKL

Benign

0.13

M_CAP

Benign

0.011

MetaRNN

Benign

0.11

MetaSVM

Benign

-0.90

PhyloP100

2.4

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

-0.43

Sift

Benign

0.20

Sift4G

Benign

0.15

Vest4

0.092

MutPred

0.35

Loss of glycosylation at S141 (P = 0.0028)

MVP

0.19

ClinPred

0.21

GERP RS

1.7

PromoterAI

0.024

Neutral

(source)

gMVP

0.20

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over