chr15-39934254-C-G

Position:

• chr15-39934254-C-G

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 3P and 4B. PM2 PP2 BP4_Strong

The NM_001013703.4(EIF2AK4):​c.59C>G​(p.Pro20Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000199 in 1,458,002 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.000020 (0 hom.)
• Consequence: EIF2AK4 NM_001013703.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.889

Genes affected

EIF2AK4 (HGNC:19687): (eukaryotic translation initiation factor 2 alpha kinase 4) This gene encodes a member of a family of kinases that phosphorylate the alpha subunit of eukaryotic translation initiation factor-2 (EIF2), resulting in the downregulaton of protein synthesis. The encoded protein responds to amino acid deprivation by binding uncharged transfer RNAs. It may also be activated by glucose deprivation and viral infection. Mutations in this gene have been found in individuals suffering from autosomal recessive pulmonary venoocclusive-disease-2. [provided by RefSeq, Mar 2014]

ACMG classification

Verdict is Likely_benign. Variant got -1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), EIF2AK4. . Gene score misZ 2.6675 (greater than the threshold 3.09). Trascript score misZ 3.5194 (greater than threshold 3.09). GenCC has associacion of gene with pulmonary venoocclusive disease 2, pulmonary venoocclusive disease, heritable pulmonary arterial hypertension, pulmonary veno-occlusive disease and/or pulmonary capillary haemangiomatosis.
• BP4: Computational evidence support a benign effect (MetaRNN=0.063648105).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EIF2AK4	NM_001013703.4	c.59C>G	p.Pro20Arg	missense_variant	1/39	ENST00000263791.10	NP_001013725.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EIF2AK4	ENST00000263791.10	c.59C>G	p.Pro20Arg	missense_variant	1/39	2	NM_001013703.4	ENSP00000263791	P1
EIF2AK4	ENST00000559624.5	c.59C>G	p.Pro20Arg	missense_variant	1/11	1		ENSP00000453148
EIF2AK4	ENST00000560648.1	c.59C>G	p.Pro20Arg	missense_variant	1/4	3		ENSP00000453968

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.0000381 AC: 9 AN: 236470 Hom.: 0 AF XY: 0.0000617 AC XY: 8 AN XY: 129734

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: 0.000302

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000199 AC: 29 AN: 1458002 Hom.: 0 Cov.: 29 AF XY: 0.0000317 AC XY: 23 AN XY: 725172

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: 0.000303

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.0000332

GnomAD4 genome Cov.: 33

Bravo AF: 0.00000378

ExAC AF: 0.0000747 AC: 9

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.083
BayesDel_addAF	Benign	-0.38	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	19
DANN	Benign	0.89
DEOGEN2	Benign	0.031	.;T;T
Eigen	Benign	-0.56
Eigen_PC	Benign	-0.34
FATHMM_MKL	Uncertain	0.81	D
LIST_S2	Benign	0.76	T;T;T
M_CAP	Benign	0.018	T
MetaRNN	Benign	0.064	T;T;T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.81	N;N;.
MutationTaster	Benign	0.99	N;N;N;N
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	1.1	N;N;N
REVEL	Benign	0.032
Sift	Benign	0.51	T;T;T
Sift4G	Benign	0.078	T;T;T
Polyphen		0.010	B;B;.
Vest4		0.27
MutPred		0.26		Loss of glycosylation at P20 (P = 0.0564);Loss of glycosylation at P20 (P = 0.0564);Loss of glycosylation at P20 (P = 0.0564);
MVP		0.59
MPC		0.39
ClinPred		0.14	T
GERP RS		3.5
Varity_R		0.036
gMVP		0.43

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: rs753520346; hg19: chr15-40226455;