rs587777105

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1PP5_Moderate

The NM_001013703.4(EIF2AK4):c.3406C>T(p.Arg1136*) variant causes a stop gained, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000157 in 1,589,426 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Pathogenic (★). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

EIF2AK4
NM_001013703.4 stop_gained, splice_region

Scores

Splicing: ADA: 0.02502

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 2.02

Publications

2 publications found

Variant links:

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]

EIF2AK4 Gene-Disease associations (from GenCC):

pulmonary veno-occlusive disease and/or pulmonary capillary haemangiomatosis
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
pulmonary venoocclusive disease 2
Inheritance: AR, AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
heritable pulmonary arterial hypertension
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
pulmonary venoocclusive disease
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

EIF2AK4 links:

ENSG00000306490 (HGNC:):

ENSG00000306490 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

PP5

Variant 15-40007064-C-T is Pathogenic according to our data. Variant chr15-40007064-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 97067.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EIF2AK4	NM_001013703.4 link	c.3406C>T	p.Arg1136*	stop_gained, splice_region_variant	Exon 24 of 39	ENST00000263791.10	NP_001013725.2	Q9P2K8-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EIF2AK4	ENST00000263791.10 link	c.3406C>T	p.Arg1136*	stop_gained, splice_region_variant	Exon 24 of 39	2	NM_001013703.4	ENSP00000263791.5		Q9P2K8-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000408

AC:

AN:

244884

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000894

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000146

AC:

AN:

1437330

Hom.:

Cov.:

AF XY:

0.0000140

AC XY:

AN XY:

716026

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32910

American (AMR)

AF:

0.00

AC:

AN:

43910

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25832

East Asian (EAS)

AF:

0.0000254

AC:

AN:

39428

South Asian (SAS)

AF:

0.00

AC:

AN:

84770

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53098

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5704

European-Non Finnish (NFE)

AF:

0.0000165

AC:

AN:

1092168

Other (OTH)

AF:

0.0000336

AC:

AN:

59510

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.420

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152096

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74296

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41408

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10594

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000310

Hom.:

Bravo

AF:

0.0000227

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Sep 29, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Arg1136*) in the EIF2AK4 gene. It is expected to result in an absent or disrupted protein product. Loss-of-function variants in EIF2AK4 are known to be pathogenic (PMID: 12215525, 24135949, 24292273, 24310610, 28972005, 29743074). This variant is not present in population databases (ExAC no frequency). This premature translational stop signal has been observed in individual(s) with pulmonary veno-occlusive disease (PMID: 24292273). ClinVar contains an entry for this variant (Variation ID: 97067). For these reasons, this variant has been classified as Pathogenic. -

Familial pulmonary capillary hemangiomatosis

Pathogenic:1

Jan 01, 2014

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.63

BayesDel_noAF

Pathogenic

0.59

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

Eigen

Uncertain

0.44

Eigen_PC

Uncertain

0.30

FATHMM_MKL

Uncertain

0.96

PhyloP100

2.0

Vest4

0.99

GERP RS

2.9

Mutation Taster

=0/200

disease causing (ClinVar)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.025

dbscSNV1_RF

Benign

0.31

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over