rs263977

Variant names:

• chr1-44894615-T-A
• rs263977
• NM_020365.5:c.656+2740A>T

Your query was ambiguous. Multiple possible variants found:

• chr1-44894615-T-A
• chr1-44894615-T-G

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_020365.5(EIF2B3):​c.656+2740A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: EIF2B3 NM_020365.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.00
• Publications: 9 publications found

Genes affected

EIF2B3 (HGNC:3259): (eukaryotic translation initiation factor 2B subunit gamma) The protein encoded by this gene is one of the subunits of initiation factor eIF2B, which catalyzes the exchange of eukaryotic initiation factor 2-bound GDP for GTP. It has also been found to function as a cofactor of hepatitis C virus internal ribosome entry site-mediated translation. Mutations in this gene have been associated with leukodystrophy with vanishing white matter. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

EIF2B3 Gene-Disease associations (from GenCC):

• leukoencephalopathy with vanishing white matter

  Inheritance: AR Classification: STRONG Submitted by: Genomics England PanelApp
• leukoencephalopathy with vanishing white matter 1

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

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.75).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020365.5. 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
	EIF2B3	NM_020365.5	MANE Select	c.656+2740A>T		intron	N/A	NP_065098.1
	EIF2B3	NM_001166588.3		c.656+2740A>T		intron	N/A	NP_001160060.1
	EIF2B3	NM_001261418.2		c.656+2740A>T		intron	N/A	NP_001248347.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EIF2B3	ENST00000360403.7	TSL:1 MANE Select	c.656+2740A>T		intron	N/A	ENSP00000353575.2
	EIF2B3	ENST00000372183.7	TSL:1	c.656+2740A>T		intron	N/A	ENSP00000361257.3
	EIF2B3	ENST00000620860.4	TSL:1	c.656+2740A>T		intron	N/A	ENSP00000483996.1

Frequencies

GnomAD3 genomes Cov.: 31

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

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 2895

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	2.5
DANN	Benign	0.77
PhyloP100		0.0

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

Other links and lift over

dbSNP: rs263977; hg19: chr1-45360287;