chr1-42929637-C-A

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PM5PP2

The NM_006516.4(SLC2A1):​c.823G>T​(p.Ala275Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,492 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A275T) has been classified as Pathogenic.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SLC2A1
NM_006516.4 missense

Scores

1
7
11

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.91
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a hotspot region, there are 3 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 8 uncertain in NM_006516.4
PM2
Very rare variant in population databases, with high coverage;
PM5
Other missense variant is known to change same aminoacid residue: Variant chr1-42929637-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 16114.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), SLC2A1. . Gene score misZ: 2.9256 (greater than the threshold 3.09). Trascript score misZ: 4.6729 (greater than threshold 3.09). The gene has 98 curated pathogenic missense variants (we use a threshold of 10). The gene has 7 curated benign missense variants. GenCC has associacion of the gene with 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.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC2A1NM_006516.4 linkc.823G>T p.Ala275Ser missense_variant 6/10 ENST00000426263.10 NP_006507.2 P11166Q59GX2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC2A1ENST00000426263.10 linkc.823G>T p.Ala275Ser missense_variant 6/101 NM_006516.4 ENSP00000416293.2 P11166

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250450
Hom.:
0
AF XY:
0.00000738
AC XY:
1
AN XY:
135438
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000883
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461492
Hom.:
0
Cov.:
33
AF XY:
0.00000138
AC XY:
1
AN XY:
727058
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000309
Hom.:
0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Uncertain
0.064
T
BayesDel_noAF
Benign
-0.15
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.59
D
Eigen
Benign
0.13
Eigen_PC
Uncertain
0.29
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Benign
0.81
T
M_CAP
Benign
0.046
D
MetaRNN
Uncertain
0.63
D
MetaSVM
Benign
-0.66
T
MutationAssessor
Benign
1.7
L
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-1.8
N
REVEL
Uncertain
0.34
Sift
Benign
0.48
T
Sift4G
Benign
0.40
T
Polyphen
0.26
B
Vest4
0.72
MutPred
0.54
Gain of catalytic residue at A275 (P = 0.0791);
MVP
0.60
MPC
1.8
ClinPred
0.86
D
GERP RS
5.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.3
Varity_R
0.59
gMVP
0.71

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.

Other links and lift over

dbSNP: rs121909740; hg19: chr1-43395308; API