rs372257864

Variant summary

Our verdict is Benign. The variant received -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BS1BS2

The NM_001958.5(EEF1A2):​c.1335C>T​(p.Ser445Ser) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00423 in 1,470,598 control chromosomes in the GnomAD database, including 45 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0029 ( 5 hom., cov: 33)
Exomes 𝑓: 0.0044 ( 40 hom. )

Consequence

EEF1A2
NM_001958.5 synonymous

Scores

1
1

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.0140

Publications

2 publications found
Variant links:
Genes affected
EEF1A2 (HGNC:3192): (eukaryotic translation elongation factor 1 alpha 2) This gene encodes an isoform of the alpha subunit of the elongation factor-1 complex, which is responsible for the enzymatic delivery of aminoacyl tRNAs to the ribosome. This isoform (alpha 2) is expressed in brain, heart and skeletal muscle, and the other isoform (alpha 1) is expressed in brain, placenta, lung, liver, kidney, and pancreas. This gene may be critical in the development of ovarian cancer. [provided by RefSeq, Mar 2014]
EEF1A2 Gene-Disease associations (from GenCC):
  • complex neurodevelopmental disorder
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • developmental and epileptic encephalopathy, 33
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, G2P
  • autosomal dominant non-syndromic intellectual disability
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • undetermined early-onset epileptic encephalopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.4).
BP6
Variant 20-63488355-G-A is Benign according to our data. Variant chr20-63488355-G-A is described in ClinVar as Benign. ClinVar VariationId is 383879.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.014 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00287 (436/151814) while in subpopulation SAS AF = 0.0281 (135/4812). AF 95% confidence interval is 0.0242. There are 5 homozygotes in GnomAd4. There are 241 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 436 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EEF1A2NM_001958.5 linkc.1335C>T p.Ser445Ser synonymous_variant Exon 8 of 8 ENST00000217182.6 NP_001949.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EEF1A2ENST00000217182.6 linkc.1335C>T p.Ser445Ser synonymous_variant Exon 8 of 8 1 NM_001958.5 ENSP00000217182.3

Frequencies

GnomAD3 genomes
AF:
0.00289
AC:
438
AN:
151706
Hom.:
5
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000484
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00118
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0282
Gnomad FIN
AF:
0.000858
Gnomad MID
AF:
0.0128
Gnomad NFE
AF:
0.00359
Gnomad OTH
AF:
0.00335
GnomAD2 exomes
AF:
0.00655
AC:
612
AN:
93442
AF XY:
0.00855
show subpopulations
Gnomad AFR exome
AF:
0.000377
Gnomad AMR exome
AF:
0.000386
Gnomad ASJ exome
AF:
0.000435
Gnomad EAS exome
AF:
0.000311
Gnomad FIN exome
AF:
0.00118
Gnomad NFE exome
AF:
0.00426
Gnomad OTH exome
AF:
0.00358
GnomAD4 exome
AF:
0.00439
AC:
5783
AN:
1318784
Hom.:
40
Cov.:
33
AF XY:
0.00493
AC XY:
3204
AN XY:
650464
show subpopulations
African (AFR)
AF:
0.000489
AC:
13
AN:
26568
American (AMR)
AF:
0.000495
AC:
13
AN:
26288
Ashkenazi Jewish (ASJ)
AF:
0.000174
AC:
4
AN:
23050
East Asian (EAS)
AF:
0.000108
AC:
3
AN:
27876
South Asian (SAS)
AF:
0.0255
AC:
1848
AN:
72560
European-Finnish (FIN)
AF:
0.00177
AC:
71
AN:
40074
Middle Eastern (MID)
AF:
0.00448
AC:
23
AN:
5134
European-Non Finnish (NFE)
AF:
0.00346
AC:
3606
AN:
1043196
Other (OTH)
AF:
0.00374
AC:
202
AN:
54038
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.476
Heterozygous variant carriers
0
276
553
829
1106
1382
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
146
292
438
584
730
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00287
AC:
436
AN:
151814
Hom.:
5
Cov.:
33
AF XY:
0.00325
AC XY:
241
AN XY:
74232
show subpopulations
African (AFR)
AF:
0.000483
AC:
20
AN:
41442
American (AMR)
AF:
0.00118
AC:
18
AN:
15278
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5100
South Asian (SAS)
AF:
0.0281
AC:
135
AN:
4812
European-Finnish (FIN)
AF:
0.000858
AC:
9
AN:
10484
Middle Eastern (MID)
AF:
0.0138
AC:
4
AN:
290
European-Non Finnish (NFE)
AF:
0.00359
AC:
244
AN:
67920
Other (OTH)
AF:
0.00284
AC:
6
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
21
41
62
82
103
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00241
Hom.:
2
Bravo
AF:
0.00207
Asia WGS
AF:
0.0140
AC:
48
AN:
3424

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 33 Benign:1
Jan 30, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Mar 04, 2016
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Inborn genetic diseases Benign:1
May 15, 2016
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

EEF1A2-related disorder Benign:1
Jul 29, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.40
CADD
Benign
11
DANN
Uncertain
0.98
PhyloP100
0.014
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs372257864; hg19: chr20-62119708; COSMIC: COSV53205327; COSMIC: COSV53205327; API