chr3-186784669-CAG-C

Variant names:

• chr3-186784669-CAG-C
• NM_001967.4:c.186_187delAG

Variant summary

Our verdict is Pathogenic. The variant received 11 ACMG points: 11P and 0B. PVS1 PM2 PP5

The NM_001967.4(EIF4A2):​c.186_187delAG​(p.Arg62SerfsTer7) variant causes a frameshift change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: EIF4A2 NM_001967.4 frameshift
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 8.84
• Publications: 0 publications found

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]

SNORD2 (HGNC:32678): (small nucleolar RNA, C/D box 2)

ACMG classification

Our verdict: Pathogenic. The variant received 11 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 3-186784669-CAG-C is Pathogenic according to our data. Variant chr3-186784669-CAG-C is described in ClinVar as Pathogenic. ClinVar VariationId is 1722504.Status of the report is no_assertion_criteria_provided, 0 stars.

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.186_187delAG	p.Arg62SerfsTer7	frameshift	Exon 3 of 11	NP_001958.2	Q14240-1
	SNORD2	NR_002587.1		n.-126_-125delAG		upstream_gene	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EIF4A2	ENST00000323963.10	TSL:1 MANE Select	c.186_187delAG	p.Arg62SerfsTer7	frameshift	Exon 3 of 11	ENSP00000326381.5	Q14240-1
	EIF4A2	ENST00000440191.6	TSL:1	c.189_190delAG	p.Arg63SerfsTer7	frameshift	Exon 3 of 11	ENSP00000398370.2	Q14240-2
	EIF4A2	ENST00000426808.5	TSL:1	n.186_187delAG		non_coding_transcript_exon	Exon 3 of 10	ENSP00000392686.1	E9PBH4

Frequencies

GnomAD3 genomes Cov.: 33

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Neurodevelopmental disorder with hypotonia and speech delay, with or without seizures (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		8.8

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

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

Other links and lift over

hg19: chr3-186502458;