chr11-119026079-G-C

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The NM_001164278.2(SLC37A4):c.872C>G(p.Ala291Gly) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000107 in 1,586,762 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 10/13 in silico tools predict a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00055 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000061 ( 0 hom. )

Consequence

SLC37A4
NM_001164278.2 missense, splice_region

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:2

Conservation

PhyloP100: 1.79

Variant links:

Genes affected

SLC37A4 (HGNC:4061): (solute carrier family 37 member 4) This gene regulates glucose-6-phosphate transport from the cytoplasm to the lumen of the endoplasmic reticulum, in order to maintain glucose homeostasis. It also plays a role in ATP-mediated calcium sequestration in the lumen of the endoplasmic reticulum. Mutations in this gene have been associated with various forms of glycogen storage disease. Alternative splicing in this gene results in multiple transcript variants.[provided by RefSeq, Aug 2009]

SLC37A4 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.019008964).

BS1

Variant frequency is greater than expected in population afr. gnomad4_exome allele frequency = 0.0000606 (87/1434508) while in subpopulation AFR AF= 0.00185 (61/32930). AF 95% confidence interval is 0.00148. There are 0 homozygotes in gnomad4_exome. There are 40 alleles in male gnomad4_exome subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	Protein	UniProt
SLC37A4	NM_001164278.2 link	c.872C>G	p.Ala291Gly	missense_variant, splice_region_variant	Exon 9 of 12	NP_001157750.1	O43826-2A0A024R3L1
SLC37A4	NM_001164277.2 link	c.872C>G	p.Ala291Gly	missense_variant, splice_region_variant	Exon 9 of 11	NP_001157749.1	O43826-1A0A024R3H9A8K0S7
SLC37A4	NM_001164280.2 link	c.872C>G	p.Ala291Gly	missense_variant, splice_region_variant	Exon 7 of 9	NP_001157752.1	O43826-1A0A024R3H9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC37A4	ENST00000330775.9 link	c.872C>G	p.Ala291Gly	missense_variant, splice_region_variant	Exon 8 of 10	5		ENSP00000476242.2		U3KPU7

Frequencies

GnomAD3 genomes

AF:

0.000546

AC:

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00174

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000523

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.000192

AC:

AN:

208402

Hom.:

AF XY:

0.000197

AC XY:

AN XY:

111666

show subpopulations

Gnomad AFR exome

AF:

0.00193

Gnomad AMR exome

AF:

0.000270

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000661

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000654

Gnomad OTH exome

AF:

0.000188

GnomAD4 exome

AF:

0.0000606

AC:

AN:

1434508

Hom.:

Cov.:

AF XY:

0.0000562

AC XY:

AN XY:

711284

show subpopulations

Gnomad4 AFR exome

AF:

0.00185

Gnomad4 AMR exome

AF:

0.000271

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000121

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000820

Gnomad4 OTH exome

AF:

0.0000841

GnomAD4 genome

AF:

0.000545

AC:

AN:

152254

Hom.:

Cov.:

AF XY:

0.000672

AC XY:

AN XY:

74436

show subpopulations

Gnomad4 AFR

AF:

0.00173

Gnomad4 AMR

AF:

0.000523

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.000947

Alfa

AF:

0.0000104

Hom.:

Bravo

AF:

0.000620

ExAC

AF:

0.000199

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Glucose-6-phosphate transport defect

Uncertain:2

Nov 17, 2019

Natera, Inc.

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 291 of the SLC37A4 protein (p.Ala291Gly). This variant is present in population databases (rs200147602, gnomAD 0.2%). This variant has not been reported in the literature in individuals affected with SLC37A4-related conditions. ClinVar contains an entry for this variant (Variation ID: 969047). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Uncertain:1Benign:1

Jan 31, 2023

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Oct 21, 2024

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Nov 07, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.A291G variant (also known as c.872C>G), located in coding exon 6 of the SLC37A4 gene, results from a C to G substitution at nucleotide position 872. The alanine at codon 291 is replaced by glycine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Glucose-6-phosphate transport defect;C0342749:Phosphate transport defect;C5561986:Congenital disorder of glycosylation, type IIw

Uncertain:1

May 18, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

SLC37A4-related disorder

Benign:1

Jun 25, 2024

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). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Benign

0.62

DEOGEN2

Benign

0.12

T;T;T;T

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.91

.;D;D;D

M_CAP

Benign

0.016

MetaRNN

Benign

0.019

T;T;T;T

PrimateAI

Benign

0.42

Sift4G

Benign

0.42

T;T;T;T

Vest4

0.33

MVP

0.57

MPC

0.034

GERP RS

3.5

gMVP

0.18

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over