2-88627121-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_004836.7(EIF2AK3):​c.154G>A​(p.Ala52Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00468 in 1,502,868 control chromosomes in the GnomAD database, including 21 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0036 ( 1 hom., cov: 33)
Exomes 𝑓: 0.0048 ( 20 hom. )

Consequence

EIF2AK3
NM_004836.7 missense

Scores

1
1
16

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: 1.56
Variant links:
Genes affected
EIF2AK3 (HGNC:3255): (eukaryotic translation initiation factor 2 alpha kinase 3) The protein encoded by this gene phosphorylates the alpha subunit of eukaryotic translation-initiation factor 2, leading to its inactivation, and thus to a rapid reduction of translational initiation and repression of global protein synthesis. This protein is thought to modulate mitochondrial function. It is a type I membrane protein located in the endoplasmic reticulum (ER), where it is induced by ER stress caused by malfolded proteins. Mutations in this gene are associated with Wolcott-Rallison syndrome. [provided by RefSeq, Sep 2015]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0064079165).
BP6
Variant 2-88627121-C-T is Benign according to our data. Variant chr2-88627121-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 193296.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-88627121-C-T is described in Lovd as [Likely_benign]. Variant chr2-88627121-C-T is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00359 (546/152088) while in subpopulation NFE AF= 0.00577 (392/67958). AF 95% confidence interval is 0.0053. There are 1 homozygotes in gnomad4. There are 267 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 20 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EIF2AK3NM_004836.7 linkc.154G>A p.Ala52Thr missense_variant Exon 1 of 17 ENST00000303236.9 NP_004827.4 Q9NZJ5B3KY45
EIF2AK3XM_047446430.1 linkc.154G>A p.Ala52Thr missense_variant Exon 1 of 12 XP_047302386.1
EIF2AK3XM_047446428.1 linkc.17+568G>A intron_variant Intron 1 of 16 XP_047302384.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EIF2AK3ENST00000303236.9 linkc.154G>A p.Ala52Thr missense_variant Exon 1 of 17 1 NM_004836.7 ENSP00000307235.3 Q9NZJ5
EIF2AK3ENST00000682892.1 linkc.-145-13268G>A intron_variant Intron 2 of 17 ENSP00000507214.1 A0A804HIT4
EIF2AK3ENST00000652099.1 linkn.151G>A non_coding_transcript_exon_variant Exon 1 of 18 ENSP00000498211.1 A0A494BZR8
EIF2AK3ENST00000652423.1 linkn.126+28G>A intron_variant Intron 1 of 3 ENSP00000498948.1 A0A494C186

Frequencies

GnomAD3 genomes
AF:
0.00358
AC:
544
AN:
151980
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00101
Gnomad AMI
AF:
0.00658
Gnomad AMR
AF:
0.00131
Gnomad ASJ
AF:
0.000577
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00310
Gnomad FIN
AF:
0.00599
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00577
Gnomad OTH
AF:
0.00192
GnomAD3 exomes
AF:
0.00460
AC:
443
AN:
96344
Hom.:
5
AF XY:
0.00483
AC XY:
262
AN XY:
54288
show subpopulations
Gnomad AFR exome
AF:
0.00133
Gnomad AMR exome
AF:
0.00290
Gnomad ASJ exome
AF:
0.000147
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00317
Gnomad FIN exome
AF:
0.00863
Gnomad NFE exome
AF:
0.00703
Gnomad OTH exome
AF:
0.00830
GnomAD4 exome
AF:
0.00480
AC:
6483
AN:
1350780
Hom.:
20
Cov.:
30
AF XY:
0.00472
AC XY:
3147
AN XY:
666292
show subpopulations
Gnomad4 AFR exome
AF:
0.000868
Gnomad4 AMR exome
AF:
0.00277
Gnomad4 ASJ exome
AF:
0.000168
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00312
Gnomad4 FIN exome
AF:
0.00984
Gnomad4 NFE exome
AF:
0.00521
Gnomad4 OTH exome
AF:
0.00411
GnomAD4 genome
AF:
0.00359
AC:
546
AN:
152088
Hom.:
1
Cov.:
33
AF XY:
0.00359
AC XY:
267
AN XY:
74374
show subpopulations
Gnomad4 AFR
AF:
0.00101
Gnomad4 AMR
AF:
0.00138
Gnomad4 ASJ
AF:
0.000577
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00331
Gnomad4 FIN
AF:
0.00599
Gnomad4 NFE
AF:
0.00577
Gnomad4 OTH
AF:
0.00190
Alfa
AF:
0.00511
Hom.:
0
Bravo
AF:
0.00287
ExAC
AF:
0.00377
AC:
286

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:13
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
-
Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center
Significance: Likely benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Feb 02, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Feb 01, 2025
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

EIF2AK3: BS2 -

not specified Benign:3
-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

- -

Apr 12, 2017
Eurofins Ntd Llc (ga)
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Apr 08, 2021
Genetic Services Laboratory, University of Chicago
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Wolcott-Rallison dysplasia Benign:3
Jan 12, 2018
Illumina Laboratory Services, Illumina
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Mar 17, 2022
Fulgent Genetics, Fulgent Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Oct 23, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

EIF2AK3-related disorder Benign:1
Sep 24, 2019
PreventionGenetics, part of Exact Sciences
Significance: Benign
Review Status: no assertion criteria provided
Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Monogenic diabetes Benign:1
Jul 20, 2018
Personalized Diabetes Medicine Program, University of Maryland School of Medicine
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: research

ACMG criteria: BP4 (8 predictors + REVEL score 0.069; not using PP3 (2 predictors)),BS2 (5 homozygotes in gnomAD), BS1 (0.7% MAF in ENF, which is greater than 0.001 (estimated prevalence 1:1million)= benign -

Connective tissue disorder Benign:1
Dec 01, 2019
Genome Diagnostics Laboratory, The Hospital for Sick Children
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
0.21
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.13
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.61
FATHMM_MKL
Benign
0.12
N
LIST_S2
Benign
0.58
T
MetaRNN
Benign
0.0064
T
MetaSVM
Benign
-0.83
T
MutationAssessor
Benign
1.5
L
PrimateAI
Pathogenic
0.86
D
PROVEAN
Benign
-0.25
N
REVEL
Benign
0.069
Sift
Benign
0.19
T
Sift4G
Benign
0.31
T
Polyphen
0.29
B
Vest4
0.20
MVP
0.88
MPC
1.5
ClinPred
0.021
T
GERP RS
3.6
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.2
Varity_R
0.078
gMVP
0.40

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: rs201593811; hg19: chr2-88926639; API