NM_001164277.2:c.148G>A

Variant names:

• chr11-119029222-C-T
• rs193302894
• NM_001164277.2:c.148G>A

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PM2 PP3_Moderate PP5_Very_Strong

The NM_001164277.2(SLC37A4):​c.148G>A​(p.Gly50Arg) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000000685 in 1,460,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Uncertain significance in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G50E) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SLC37A4 NM_001164277.2 missense, splice_region
• Clinical Significance: Likely pathogenic criteria provided, multiple submitters, no conflicts P:2
• Conservation: PhyloP100: 7.06
• Publications: 5 publications found

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: PanelApp Australia, Labcorp Genetics (formerly Invitae), G2P
• glycogen storage disease Ib

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P
• glycogen storage disease type 1 due to SLC37A4 mutation

  Inheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health

ACMG classification

Our verdict: Pathogenic. The variant received 12 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.935
• PP5: Variant 11-119029222-C-T is Pathogenic according to our data. Variant chr11-119029222-C-T is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 2678969.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC37A4	NM_001164277.2	MANE Select	c.148G>A	p.Gly50Arg	missense splice_region	Exon 3 of 11	NP_001157749.1	O43826-1
	SLC37A4	NM_001164278.2		c.148G>A	p.Gly50Arg	missense splice_region	Exon 3 of 12	NP_001157750.1	O43826-2
	SLC37A4	NM_001164280.2		c.148G>A	p.Gly50Arg	missense splice_region	Exon 1 of 9	NP_001157752.1	O43826-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC37A4	ENST00000330775.9	TSL:5	c.148G>A	p.Gly50Arg	missense splice_region	Exon 2 of 10	ENSP00000476242.2	U3KPU7
	SLC37A4	ENST00000524428.5	TSL:1	n.148G>A		splice_region non_coding_transcript_exon	Exon 1 of 6
	SLC37A4	ENST00000525039.5	TSL:1	n.571G>A		splice_region non_coding_transcript_exon	Exon 3 of 11

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460886 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726716

African (AFR) AF: 0.00 AC: 0 AN: 33474

American (AMR) AF: 0.00 AC: 0 AN: 44686

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26116

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86142

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52856

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111786

Other (OTH) AF: 0.00 AC: 0 AN: 60360

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Glucose-6-phosphate transport defect (2)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.58	D
BayesDel_noAF	Pathogenic	0.59
CADD	Pathogenic	32
DANN	Benign	0.97
DEOGEN2	Uncertain	0.64	D
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Benign	0.056	D
MetaRNN	Pathogenic	0.93	D
PhyloP100		7.1
Sift4G	Pathogenic	0.0	D
Vest4		1.0
MVP		0.57
MPC		0.23
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
gMVP		0.97
Mutation Taster		=0/100	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.40		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.40		Position offset: 0

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

Other links and lift over

dbSNP: rs193302894; hg19: chr11-118899932;