chr1-42927667-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 3P and 10B. PM1PP2BP4_StrongBP6_ModerateBS1

The NM_006516.4(SLC2A1):c.1216G>A(p.Val406Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000539 in 1,614,150 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V406F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

SLC2A1
NM_006516.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.06

Variant links:

Genes affected

SLC2A1 (HGNC:11005): (solute carrier family 2 member 1) This gene encodes a major glucose transporter in the mammalian blood-brain barrier. The encoded protein is found primarily in the cell membrane and on the cell surface, where it can also function as a receptor for human T-cell leukemia virus (HTLV) I and II. Mutations in this gene have been found in a family with paroxysmal exertion-induced dyskinesia. [provided by RefSeq, Apr 2013]

SLC2A1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PM1

In a hotspot region, there are 5 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 7 uncertain in NM_006516.4

PP2

Missense variant in the SLC2A1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 98 curated pathogenic missense variants (we use a threshold of 10). The gene has 7 curated benign missense variants. Gene score misZ: 2.9256 (below the threshold of 3.09). Trascript score misZ: 4.6729 (above the threshold of 3.09). GenCC associations: The gene is linked to childhood absence epilepsy, dystonia 9, epilepsy, idiopathic generalized, susceptibility to, 12, GLUT1 deficiency syndrome, myoclonic-astatic epilepsy, childhood onset GLUT1 deficiency syndrome 2, hereditary cryohydrocytosis with reduced stomatin, encephalopathy due to GLUT1 deficiency.

BP4

Computational evidence support a benign effect (MetaRNN=0.046082467).

BP6

Variant 1-42927667-C-T is Benign according to our data. Variant chr1-42927667-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 207230.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr1-42927667-C-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000269 (41/152280) while in subpopulation AFR AF= 0.000963 (40/41550). AF 95% confidence interval is 0.000726. There are 0 homozygotes in gnomad4. There are 16 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC2A1	NM_006516.4 link	c.1216G>A	p.Val406Ile	missense_variant	Exon 9 of 10	ENST00000426263.10	NP_006507.2	P11166Q59GX2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC2A1	ENST00000426263.10 link	c.1216G>A	p.Val406Ile	missense_variant	Exon 9 of 10	1	NM_006516.4	ENSP00000416293.2		P11166

Frequencies

GnomAD3 genomes

AF:

0.000269

AC:

AN:

152162

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000966

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

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:

0.00

GnomAD3 exomes

AF:

0.0000796

AC:

AN:

251262

Hom.:

AF XY:

0.0000515

AC XY:

AN XY:

135826

show subpopulations

Gnomad AFR exome

AF:

0.000800

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000544

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000315

AC:

AN:

1461870

Hom.:

Cov.:

AF XY:

0.0000275

AC XY:

AN XY:

727234

show subpopulations

Gnomad4 AFR exome

AF:

0.000836

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000899

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.000269

AC:

AN:

152280

Hom.:

Cov.:

AF XY:

0.000215

AC XY:

AN XY:

74458

show subpopulations

Gnomad4 AFR

AF:

0.000963

Gnomad4 AMR

AF:

0.0000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000757

Hom.:

Bravo

AF:

0.000302

ESP6500AA

AF:

0.000681

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000165

AC:

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

GLUT1 deficiency syndrome 1, autosomal recessive

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.095

BayesDel_addAF

Benign

-0.34

BayesDel_noAF

Benign

-0.33

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Benign

0.40

Eigen

Benign

-0.063

Eigen_PC

Benign

0.077

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.87

M_CAP

Benign

0.024

MetaRNN

Benign

0.046

MetaSVM

Benign

-0.84

MutationAssessor

Benign

0.36

PrimateAI

Uncertain

0.64

PROVEAN

Benign

-0.48

REVEL

Benign

0.17

Sift

Benign

0.58

Sift4G

Benign

0.67

Polyphen

0.55

Vest4

0.26

MVP

0.53

MPC

1.8

ClinPred

0.037

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.19

gMVP

0.25

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