Genetic Variant EEFSEC:p.Ile206Thr (chr3-128262220-T-C) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_021937.5(EEFSEC):c.617T>C(p.Ile206Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,613,820 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

EEFSEC
NM_021937.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.19

Variant links:

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]

EEFSEC links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EEFSEC	NM_021937.5 link	c.617T>C	p.Ile206Thr	missense_variant	Exon 3 of 7	ENST00000254730.11	NP_068756.2	P57772-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
EEFSEC	ENST00000254730.11 link	c.617T>C	p.Ile206Thr	missense_variant	Exon 3 of 7	1	NM_021937.5	ENSP00000254730.5	P57772-1
EEFSEC	ENST00000483457.1 link	c.617T>C	p.Ile206Thr	missense_variant	Exon 3 of 5	5		ENSP00000417660.1	C9J8T0
EEFSEC	ENST00000484438.1 link	n.364+15177T>C		intron_variant	Intron 2 of 2	3

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000199

AC:

AN:

251364

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135864

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000130

AC:

AN:

1461670

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727144

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152150

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000116

Hom.:

Bravo

AF:

0.0000227

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 13, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.617T>C (p.I206T) alteration is located in exon 3 (coding exon 3) of the EEFSEC gene. This alteration results from a T to C substitution at nucleotide position 617, causing the isoleucine (I) at amino acid position 206 to be replaced by a threonine (T). 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

Benign

0.098

BayesDel_addAF

Pathogenic

0.27

BayesDel_noAF

Pathogenic

0.23

CADD

Uncertain

DANN

Benign

0.96

DEOGEN2

Benign

0.38

T;T

Eigen

Benign

0.079

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.99

M_CAP

Benign

0.067

MetaRNN

Uncertain

0.67

D;D

MetaSVM

Benign

-0.56

MutationAssessor

Benign

2.0

M;.

PrimateAI

Uncertain

0.61

PROVEAN

Uncertain

-2.8

D;D

REVEL

Uncertain

0.53

Sift

Benign

0.054

T;T

Sift4G

Benign

0.16

T;D

Polyphen

0.47

P;B

Vest4

0.88

MVP

0.65

MPC

0.26

ClinPred

0.33

GERP RS

5.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.48

gMVP

0.56

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over