3-184140517-C-G

Position:

• chr3-184140517-C-G

Variant summary

Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PS1_Moderate PM1 PM2 PM5 PP3_Moderate PP5

The NM_003907.3(EIF2B5):​c.943C>G​(p.Arg315Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in Lovd as Pathogenic (no stars). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R315C) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 31)
• Consequence: EIF2B5 NM_003907.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.97

Genes affected

EIF2B5 (HGNC:3261): (eukaryotic translation initiation factor 2B subunit epsilon) This gene encodes one of five subunits of eukaryotic translation initiation factor 2B (EIF2B), a GTP exchange factor for eukaryotic initiation factor 2 and an essential regulator for protein synthesis. Mutations in this gene and the genes encoding other EIF2B subunits have been associated with leukoencephalopathy with vanishing white matter. [provided by RefSeq, Nov 2009]

ACMG classification

Verdict is Pathogenic. Variant got 11 ACMG points.

• PS1: Transcript NM_003907.3 (EIF2B5) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
• PM1: In a turn (size 5) in uniprot entity EI2BE_HUMAN there are 4 pathogenic changes around while only 0 benign (100%) in NM_003907.3
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr3-184140517-C-T is described in Lovd as [Pathogenic].
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.906
• PP5: Variant 3-184140517-C-G is Pathogenic according to our data. Variant chr3-184140517-C-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EIF2B5	NM_003907.3	c.943C>G	p.Arg315Gly	missense_variant	7/16	ENST00000648915.2	NP_003898.2
EIF2B5	XM_047449148.1	c.943C>G	p.Arg315Gly	missense_variant	7/11		XP_047305104.1
EIF2B5	XM_011513265.1	c.193C>G	p.Arg65Gly	missense_variant	3/12		XP_011511567.1
EIF2B5	XM_011513266.4	c.106C>G	p.Arg36Gly	missense_variant	2/11		XP_011511568.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EIF2B5	ENST00000648915.2	c.943C>G	p.Arg315Gly	missense_variant	7/16		NM_003907.3	ENSP00000497160	P2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.26
BayesDel_addAF	Pathogenic	0.46	D
BayesDel_noAF	Pathogenic	0.43
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.18	T;.;T
Eigen	Benign	0.15
Eigen_PC	Uncertain	0.33
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.86	.;D;D
M_CAP	Uncertain	0.097	D
MetaRNN	Pathogenic	0.91	D;D;D
MetaSVM	Uncertain	0.47	D
MutationAssessor	Benign	1.2	L;.;L
MutationTaster	Benign	1.0	D;D
PrimateAI	Uncertain	0.63	T
PROVEAN	Uncertain	-2.9	D;.;.
REVEL	Pathogenic	0.72
Sift	Benign	0.033	D;.;.
Sift4G	Benign	0.076	T;.;.
Polyphen		0.68	P;.;P
Vest4		0.96
MutPred		0.82		Loss of MoRF binding (P = 0.061);.;Loss of MoRF binding (P = 0.061);
MVP		0.99
MPC		0.37
ClinPred		0.90	D
GERP RS		5.8
Varity_R		0.89
gMVP		0.75

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

LitVar

Other links and lift over

dbSNP: rs113994063; hg19: chr3-183858305;