11-792587-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001191061.2(SLC25A22):​c.553G>A​(p.Gly185Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000527 in 1,611,646 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 Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

SLC25A22
NM_001191061.2 missense

Scores

10
7
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 6.06
Variant links:
Genes affected
SLC25A22 (HGNC:19954): (solute carrier family 25 member 22) This gene encodes a mitochondrial glutamate carrier. Mutations in this gene are associated with early infantile epileptic encephalopathy. Multiple alternatively spliced variants, encoding the same protein, have been identified.[provided by RefSeq, Jul 2010]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.921

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SLC25A22NM_001191061.2 linkuse as main transcriptc.553G>A p.Gly185Ser missense_variant 7/10 ENST00000628067.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SLC25A22ENST00000628067.3 linkuse as main transcriptc.553G>A p.Gly185Ser missense_variant 7/101 NM_001191061.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0000395
AC:
6
AN:
152082
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000371
AC:
9
AN:
242418
Hom.:
0
AF XY:
0.0000226
AC XY:
3
AN XY:
132602
show subpopulations
Gnomad AFR exome
AF:
0.0000665
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000657
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000555
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000541
AC:
79
AN:
1459564
Hom.:
0
Cov.:
32
AF XY:
0.0000592
AC XY:
43
AN XY:
726086
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000232
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000603
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000395
AC:
6
AN:
152082
Hom.:
0
Cov.:
33
AF XY:
0.0000539
AC XY:
4
AN XY:
74262
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000102
Hom.:
0
Bravo
AF:
0.0000491
ExAC
AF:
0.0000414
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingGeneDxOct 24, 2022Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenMar 01, 2018- -
Early infantile epileptic encephalopathy with suppression bursts Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeJan 24, 2024This sequence change replaces glycine, which is neutral and non-polar, with serine, which is neutral and polar, at codon 185 of the SLC25A22 protein (p.Gly185Ser). This variant is present in population databases (rs761249044, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with SLC25A22-related conditions. ClinVar contains an entry for this variant (Variation ID: 575294). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt SLC25A22 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Early myoclonic encephalopathy Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsOct 31, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Pathogenic
0.24
D
BayesDel_noAF
Pathogenic
0.30
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Benign
0.33
T;T;T;.;.;.;.;.
Eigen
Uncertain
0.45
Eigen_PC
Uncertain
0.34
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Pathogenic
0.99
.;.;D;D;D;D;D;D
M_CAP
Pathogenic
0.52
D
MetaRNN
Pathogenic
0.92
D;D;D;D;D;D;D;D
MetaSVM
Uncertain
0.30
D
MutationAssessor
Uncertain
2.5
M;M;M;.;.;.;.;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.83
D
PROVEAN
Pathogenic
-5.7
D;.;D;D;.;D;.;.
REVEL
Pathogenic
0.85
Sift
Uncertain
0.0010
D;.;D;D;.;D;.;.
Sift4G
Uncertain
0.0050
D;D;D;T;T;.;D;D
Polyphen
1.0
D;D;D;.;.;.;.;.
Vest4
0.92
MVP
0.91
MPC
1.2
ClinPred
0.90
D
GERP RS
3.5
Varity_R
0.95
gMVP
0.90

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: rs761249044; hg19: chr11-792587; COSMIC: COSV100204272; COSMIC: COSV100204272; API