rs376174565

chr19-3980074-A-C

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_Strong BP6 BS2

The NM_001961.4(EEF2):c.1347-8T>G variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000028 in 1,609,778 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/2 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 34)
  • Exomes 𝑓: 0.000028 (0 hom.)
• Consequence: EEF2 NM_001961.4 splice_region, splice_polypyrimidine_tract, intron
• Scores: Splicing: ADA: 0.0001325
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:1
• Conservation: PhyloP100: 0.288

Genes affected

EEF2 (HGNC:3214): (eukaryotic translation elongation factor 2) This gene encodes a member of the GTP-binding translation elongation factor family. This protein is an essential factor for protein synthesis. It promotes the GTP-dependent translocation of the nascent protein chain from the A-site to the P-site of the ribosome. This protein is completely inactivated by EF-2 kinase phosporylation. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -9 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.87).
• BP6: Variant 19-3980074-A-C is Benign according to our data. Variant chr19-3980074-A-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 585822.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=1, Benign=1}.
• BS2: High AC in GnomAdExome at 15 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EEF2	NM_001961.4	c.1347-8T>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		ENST00000309311.7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EEF2	ENST00000309311.7	c.1347-8T>G		splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant		5	NM_001961.4	P1

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152230 Hom.: 0 Cov.: 34

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000294

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000617 AC: 15 AN: 243148 Hom.: 0 AF XY: 0.0000603 AC XY: 8 AN XY: 132586

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000204

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000658

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000555

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000281 AC: 41 AN: 1457430 Hom.: 0 Cov.: 32 AF XY: 0.0000290 AC XY: 21 AN XY: 724378

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.000179

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000464

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000216

Gnomad4 OTH exome AF: 0.0000664

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152348 Hom.: 0 Cov.: 34 AF XY: 0.0000268 AC XY: 2 AN XY: 74508

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000414

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000294

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000906 Hom.: 0

Bravo AF: 0.0000567

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:1

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1 Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Feb 28, 2023	This sequence change falls in intron 9 of the EEF2 gene. It does not directly change the encoded amino acid sequence of the EEF2 protein. This variant is present in population databases (rs376174565, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with EEF2-related conditions. ClinVar contains an entry for this variant (Variation ID: 585822). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Jun 30, 2018	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.87
Cadd	Benign	1.6
Dann	Benign	0.50
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00013
dbscSNV1_RF	Benign	0.018
SpliceAI score (max)		0.090		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: rs376174565; hg19: chr19-3980072;