NM_014239.4:c.607_612delATGGCTinsTG

Variant names:

• chr14-75005875-ATGGCT-TG
• rs113994014
• NM_014239.4:c.607_612delATGGCTinsTG

Variant summary

Our verdict is Pathogenic. The variant received 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_014239.4(EIF2B2):​c.607_612delATGGCTinsTG​(p.Met203TrpfsTer2) variant causes a frameshift, missense 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 (★★). Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EIF2B2 NM_014239.4 frameshift, missense
• Clinical Significance: Pathogenic criteria provided, multiple submitters, no conflicts P:5 O:1
• Conservation: PhyloP100: 9.62
• Publications: 2 publications found

Genes affected

EIF2B2 (HGNC:3258): (eukaryotic translation initiation factor 2B subunit beta) This gene encodes the beta subunit of eukaryotic initiation factor-2B (EIF2B). EIF2B is involved in protein synthesis and exchanges GDP and GTP for its activation and deactivation. [provided by RefSeq, Aug 2011]

EIF2B2 Gene-Disease associations (from GenCC):

• leukoencephalopathy with vanishing white matter

  Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Illumina
• leukoencephalopathy with vanishing white matter

  Inheritance: AR Classification: STRONG Submitted by: G2P
• leukoencephalopathy with vanishing white matter 1

  Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
• ovarioleukodystrophy

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000258646 (HGNC:):

ACMG classification

Our verdict: Pathogenic. The variant received 18 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 14-75005875-ATGGCT-TG is Pathogenic according to our data. Variant chr14-75005875-ATGGCT-TG is described in ClinVar as Pathogenic. ClinVar VariationId is 4340.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014239.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EIF2B2	NM_014239.4	MANE Select	c.607_612delATGGCTinsTG	p.Met203TrpfsTer2	frameshift missense	Exon 5 of 8	NP_055054.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EIF2B2	ENST00000266126.10	TSL:1 MANE Select	c.607_612delATGGCTinsTG	p.Met203TrpfsTer2	frameshift missense	Exon 5 of 8	ENSP00000266126.5
	EIF2B2	ENST00000932124.1		c.604_609delATGGCTinsTG	p.Met202TrpfsTer2	frameshift missense	Exon 5 of 8	ENSP00000602183.1
	EIF2B2	ENST00000932126.1		c.499_504delATGGCTinsTG	p.Met167TrpfsTer2	frameshift missense	Exon 5 of 8	ENSP00000602185.1

Frequencies

GnomAD3 genomes Cov.: 32

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

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	not provided (2)
2	-	-	Vanishing white matter disease (3)
1	-	-	Leukoencephalopathy with vanishing white matter 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		9.6
Mutation Taster		=1/199	disease causing (fs/PTC)

Splicing

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

Other links and lift over

dbSNP: rs113994014; hg19: chr14-75472578;