Genetic Variant SLC37A4:p.Asn27Ser (chr11-119029290-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 4P and 2B. PM1PM5BP4BP6

The NM_001164277.2(SLC37A4):c.80A>G(p.Asn27Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,613,908 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 8/11 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N27K) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000053 ( 1 hom., cov: 33)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

SLC37A4
NM_001164277.2 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 5.51

Publications

1 publications found

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 Gene-Disease associations (from GenCC):

congenital disorder of glycosylation, type IIw
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
glycogen storage disease Ib
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P
glycogen storage disease type 1 due to SLC37A4 mutation
Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health

SLC37A4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM1

In a hotspot region, there are 4 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 20 uncertain in NM_001164277.2

PM5

Other missense variant is known to change same aminoacid residue: Variant chr11-119029289-A-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 68290.

BP4

Computational evidence support a benign effect (MetaRNN=0.3994606).

BP6

Variant 11-119029290-T-C is Benign according to our data. Variant chr11-119029290-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 459624.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001164277.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SLC37A4	NM_001164277.2	MANE Select	c.80A>G	p.Asn27Ser	missense	Exon 3 of 11	NP_001157749.1
SLC37A4	NM_001164278.2		c.80A>G	p.Asn27Ser	missense	Exon 3 of 12	NP_001157750.1
SLC37A4	NM_001164280.2		c.80A>G	p.Asn27Ser	missense	Exon 1 of 9	NP_001157752.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SLC37A4	ENST00000330775.9	TSL:5	c.80A>G	p.Asn27Ser	missense	Exon 2 of 10	ENSP00000476242.2
SLC37A4	ENST00000524428.5	TSL:1	n.80A>G		non_coding_transcript_exon	Exon 1 of 6
SLC37A4	ENST00000525039.5	TSL:1	n.503A>G		non_coding_transcript_exon	Exon 3 of 11

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000393

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461574

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727060

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44708

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26130

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86246

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53324

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111852

Other (OTH)

AF:

0.0000994

AC:

AN:

60368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

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:

0.0000525

AC:

AN:

152334

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74506

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41574

American (AMR)

AF:

0.000392

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68026

Other (OTH)

AF:

0.000946

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.405

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.00000826

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Glucose-6-phosphate transport defect

Uncertain:1Benign:1

Sep 16, 2020

Natera, Inc.

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

Jan 12, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

not provided

Uncertain:1

Jul 19, 2019

Revvity Omics, Revvity

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

0.010

BayesDel_noAF

Benign

-0.22

CADD

Benign

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.14

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.96

M_CAP

Benign

0.0088

MetaRNN

Benign

0.40

PhyloP100

5.5

Sift4G

Uncertain

0.020

Vest4

0.56

MVP

0.44

MPC

0.031

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

gMVP

0.78

Mutation Taster

=76/24

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

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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

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over