2-88613755-G-T

Position:

• chr2-88613755-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_004836.7(EIF2AK3):​c.407C>A​(p.Ser136Tyr) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. 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. S136C) has been classified as Benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EIF2AK3 NM_004836.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.89

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EIF2AK3	NM_004836.7	c.407C>A	p.Ser136Tyr	missense_variant	2/17	ENST00000303236.9
EIF2AK3	XM_047446428.1	c.116C>A	p.Ser39Tyr	missense_variant	2/17
EIF2AK3	XM_047446430.1	c.407C>A	p.Ser136Tyr	missense_variant	2/12
EIF2AK3	NM_001313915.2	c.-47C>A		5_prime_UTR_variant	2/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EIF2AK3	ENST00000303236.9	c.407C>A	p.Ser136Tyr	missense_variant	2/17	1	NM_004836.7	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.45
BayesDel_addAF	Benign	-0.055	T
BayesDel_noAF	Benign	-0.32
CADD	Pathogenic	26
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.55	D
Eigen	Uncertain	0.60
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.031	D
MetaRNN	Uncertain	0.65	D
MetaSVM	Benign	-0.84	T
MutationAssessor	Benign	1.8	L
MutationTaster	Benign	0.079	P;P
PrimateAI	Uncertain	0.67	T
PROVEAN	Uncertain	-2.9	D
REVEL	Benign	0.14
Sift	Uncertain	0.029	D
Sift4G	Uncertain	0.011	D
Polyphen		0.92	P
Vest4		0.45
MutPred		0.30		Loss of disorder (P = 0.0024);
MVP		0.91
MPC		0.92
ClinPred		0.97	D
GERP RS		5.4
Varity_R		0.37
gMVP		0.63

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

Other links and lift over

dbSNP: rs867529; hg19: chr2-88913273;