Genetic Variant EIF4A2:p.Ser2Tyr (chr3-186783615-C-A) – ACMG Classification: Uncertain_significance (5 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PM5PP2

The NM_001967.4(EIF4A2):c.5C>A(p.Ser2Tyr) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,880 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. S2C) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

EIF4A2
NM_001967.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.07

Publications

0 publications found

Variant links:

Genes affected

EIF4A2 (HGNC:3284): (eukaryotic translation initiation factor 4A2) Enables ATP hydrolysis activity. Involved in negative regulation of RNA-directed 5'-3' RNA polymerase activity. Located in perinuclear region of cytoplasm. [provided by Alliance of Genome Resources, Apr 2022]

EIF4A2 Gene-Disease associations (from GenCC):

neurodevelopmental disorder with hypotonia and speech delay, with or without seizures
Inheritance: AR, AD Classification: STRONG, MODERATE, LIMITED Submitted by: G2P, Ambry Genetics

EIF4A2 links:

ENSG00000263826 (HGNC:):

ENSG00000263826 links:

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ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr3-186783615-C-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 1712514.Status of the report is no_assertion_criteria_provided, 0 stars.

PP2

Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 8 curated pathogenic missense variants (we use a threshold of 10). The gene has 0 curated benign missense variants. Gene score misZ: 3.895 (above the threshold of 3.09). Trascript score misZ: 5.45 (above the threshold of 3.09). GenCC associations: The gene is linked to neurodevelopmental disorder with hypotonia and speech delay, with or without seizures.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001967.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EIF4A2	NM_001967.4	MANE Select	c.5C>A	p.Ser2Tyr	missense	Exon 1 of 11	NP_001958.2	Q14240-1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
EIF4A2	ENST00000323963.10	TSL:1 MANE Select	c.5C>A	p.Ser2Tyr	missense	Exon 1 of 11	ENSP00000326381.5	Q14240-1
EIF4A2	ENST00000440191.6	TSL:1	c.5C>A	p.Ser2Tyr	missense	Exon 1 of 11	ENSP00000398370.2	Q14240-2
EIF4A2	ENST00000426808.5	TSL:1	n.5C>A		non_coding_transcript_exon	Exon 1 of 10	ENSP00000392686.1	E9PBH4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461880

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.22

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Uncertain

0.020

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.022

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.62

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.028

MetaRNN

Uncertain

0.61

MetaSVM

Benign

-0.86

MutationAssessor

Benign

1.8

PhyloP100

7.1

PrimateAI

Pathogenic

0.85

PROVEAN

Benign

-1.4

REVEL

Benign

0.20

Sift

Uncertain

0.0030

Sift4G

Uncertain

0.048

Polyphen

0.88

Vest4

0.72

MutPred

0.19

Loss of glycosylation at S2 (P = 0.0069)

MVP

0.61

MPC

0.017

ClinPred

0.94

GERP RS

4.5

PromoterAI

0.0058

Neutral

(source)

RBP_binding_hub_radar

1.0

RBP_regulation_power_radar

2.7

Varity_R

0.32

gMVP

0.78

Mutation Taster

=34/66

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over