chr3-128153562-G-A

Position:

• chr3-128153562-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_021937.5(EEFSEC):​c.55G>A​(p.Gly19Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000145 in 1,383,494 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 29)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: EEFSEC NM_021937.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.74

Genes affected

EEFSEC (HGNC:24614): (eukaryotic elongation factor, selenocysteine-tRNA specific) Predicted to enable translation elongation factor activity. Predicted to be involved in selenocysteine incorporation. Predicted to be located in cytoplasm and nucleus. Predicted to be part of ribonucleoprotein complex. [provided by Alliance of Genome Resources, Apr 2022]

RUVBL1 (HGNC:10474): (RuvB like AAA ATPase 1) This gene encodes a protein that has both DNA-dependent ATPase and DNA helicase activities and belongs to the ATPases associated with diverse cellular activities (AAA+) protein family. The encoded protein associates with several multisubunit transcriptional complexes and with protein complexes involved in both ATP-dependent remodeling and histone modification. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.973

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EEFSEC	NM_021937.5	c.55G>A	p.Gly19Ser	missense_variant	1/7	ENST00000254730.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EEFSEC	ENST00000254730.11	c.55G>A	p.Gly19Ser	missense_variant	1/7	1	NM_021937.5	P1
EEFSEC	ENST00000483457.1	c.55G>A	p.Gly19Ser	missense_variant	1/5	5
RUVBL1	ENST00000464873.5	c.-399C>T		5_prime_UTR_variant	1/10	2

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome AF: 0.00000145 AC: 2 AN: 1383494 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 683806

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000256

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.0000174

GnomAD4 genome Cov.: 29

Bravo AF: 0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 13, 2022

The c.55G>A (p.G19S) alteration is located in exon 1 (coding exon 1) of the EEFSEC gene. This alteration results from a G to A substitution at nucleotide position 55, causing the glycine (G) at amino acid position 19 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.97
BayesDel_addAF	Pathogenic	0.49	D
BayesDel_noAF	Pathogenic	0.47
CADD	Pathogenic	33
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.73	D;T
Eigen	Pathogenic	1.0
Eigen_PC	Pathogenic	0.84
FATHMM_MKL	Uncertain	0.83	D
M_CAP	Pathogenic	0.98	D
MetaRNN	Pathogenic	0.97	D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	5.1	H;.
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Pathogenic	0.94	D
PROVEAN	Pathogenic	-5.4	D;D
REVEL	Pathogenic	0.90
Sift	Pathogenic	0.0	D;D
Sift4G	Uncertain	0.0060	D;D
Polyphen		1.0	D;D
Vest4		0.85
MutPred		0.81		Loss of catalytic residue at G19 (P = 0.0071);Loss of catalytic residue at G19 (P = 0.0071);
MVP		0.97
MPC		1.9
ClinPred		1.0	D
GERP RS		4.3
Varity_R		0.97
gMVP		0.90

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: rs567446865; hg19: chr3-127872405;