rs1085307442

Variant names:

• chr15-40001224-G-A
• rs1085307442
• NM_001013703.4:c.3159G>A

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PP3_Strong PP5

The NM_001013703.4(EIF2AK4):​c.3159G>A​(p.Lys1053Lys) variant causes a splice region, synonymous change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,460,534 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: EIF2AK4 NM_001013703.4 splice_region, synonymous
• Scores: Splicing: ADA: 1.000
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 8.01
• Publications: 1 publications found

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

ENSG00000306490 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

• PP3: Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
• PP5: Variant 15-40001224-G-A is Pathogenic according to our data. Variant chr15-40001224-G-A is described in ClinVar as Pathogenic. ClinVar VariationId is 426058.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EIF2AK4	NM_001013703.4	c.3159G>A	p.Lys1053Lys	splice_region_variant, synonymous_variant	Exon 21 of 39	ENST00000263791.10	NP_001013725.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EIF2AK4	ENST00000263791.10	c.3159G>A	p.Lys1053Lys	splice_region_variant, synonymous_variant	Exon 21 of 39	2	NM_001013703.4	ENSP00000263791.5
EIF2AK4	ENST00000558629.5	n.2076G>A		splice_region_variant, non_coding_transcript_exon_variant	Exon 4 of 22	1
EIF2AK4	ENST00000560855.5	c.2490G>A	p.Lys830Lys	splice_region_variant, synonymous_variant	Exon 16 of 34	5		ENSP00000453575.1
ENSG00000306490	ENST00000819059.1	n.196-2336C>T		intron_variant	Intron 1 of 1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.00000402 AC: 1 AN: 248592 AF XY: 0.00

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: 0.00000888

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1460534 Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5 AN XY: 726590

African (AFR) AF: 0.00 AC: 0 AN: 33436

American (AMR) AF: 0.00 AC: 0 AN: 44708

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86162

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53324

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4902

European-Non Finnish (NFE) AF: 0.00000630 AC: 7 AN: 1111874

Other (OTH) AF: 0.00 AC: 0 AN: 60302

GnomAD4 genome Cov.: 31

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Familial pulmonary capillary hemangiomatosis Pathogenic:1

-

Rare Disease Genomics Group, St George's University of London

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.17
CADD	Benign	22
DANN	Benign	0.96
PhyloP100		8.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=0/100	disease causing (ClinVar)

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Pathogenic	1.0
dbscSNV1_RF	Pathogenic	1.0
SpliceAI score (max)		0.80		Details are displayed if max score is > 0.2
DS_DL_spliceai		0.80		Position offset: 0

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

Other links and lift over

dbSNP: rs1085307442; hg19: chr15-40293425;