rs193302886

chr11-119028312-C-Achr11-119028312-C-T

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PM5 PP3_Moderate

The ENST00000330775.9(SLC37A4):c.263G>T(p.Gly88Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G88D) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: SLC37A4 ENST00000330775.9 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.30

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr11-119028312-C-T is described in Lovd as [Pathogenic].
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.879

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SLC37A4	NM_001164277.2	c.263G>T	p.Gly88Val	missense_variant	4/11	ENST00000642844.3
SLC37A4	NM_001164279.2	c.44G>T	p.Gly15Val	missense_variant	4/11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SLC37A4	ENST00000330775.9	c.263G>T	p.Gly88Val	missense_variant	3/10	5		P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Glucose-6-phosphate transport defect Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Counsyl

May 22, 2018

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.59	D
BayesDel_noAF	Pathogenic	0.61
Cadd	Uncertain	25
Dann	Benign	0.89
DEOGEN2	Uncertain	0.42	T;T;T;T
FATHMM_MKL	Uncertain	0.96	D
M_CAP	Benign	0.026	D
MetaRNN	Pathogenic	0.88	D;D;D;D
PrimateAI	Uncertain	0.77	T
Sift4G	Pathogenic	0.0	D;D;D;D
Vest4		0.98
MVP		0.58
MPC		0.23
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
gMVP		0.94

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

Other links and lift over

dbSNP: rs193302886; hg19: chr11-118899022; COSMIC: COSV100421608; COSMIC: COSV100421608;