rs1170731512

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP6_Very_Strong

The NM_001958.5(EEF1A2):​c.1265-10delC variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,389,470 control chromosomes in the GnomAD database, with no homozygous occurrence. There is a variant allele frequency bias in the population database for this variant (GnomAdExome4), which may indicate mosaicism or somatic mutations in the reference population data. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000013 ( 0 hom. )

Consequence

EEF1A2
NM_001958.5 intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.218

Publications

0 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 -8 ACMG points.

BP6
Variant 20-63488434-CG-C is Benign according to our data. Variant chr20-63488434-CG-C is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 515417.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EEF1A2NM_001958.5 linkc.1265-10delC intron_variant Intron 7 of 7 ENST00000217182.6 NP_001949.1 Q05639

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EEF1A2ENST00000217182.6 linkc.1265-10delC intron_variant Intron 7 of 7 1 NM_001958.5 ENSP00000217182.3 Q05639

Frequencies

GnomAD3 genomes
AF:
0.0000134
AC:
2
AN:
149622
Hom.:
0
Cov.:
33
show subpopulations
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000297
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000159
AC:
1
AN:
62968
AF XY:
0.0000268
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000157
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000129
AC:
16
AN:
1239848
Hom.:
0
Cov.:
33
AF XY:
0.0000164
AC XY:
10
AN XY:
610734
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000813
AC:
2
AN:
24608
American (AMR)
AF:
0.00
AC:
0
AN:
19330
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
20914
East Asian (EAS)
AF:
0.00
AC:
0
AN:
26398
South Asian (SAS)
AF:
0.0000151
AC:
1
AN:
66264
European-Finnish (FIN)
AF:
0.0000878
AC:
3
AN:
34154
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
3908
European-Non Finnish (NFE)
AF:
0.00000906
AC:
9
AN:
993808
Other (OTH)
AF:
0.0000198
AC:
1
AN:
50464
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0000000000000740519), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.281
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000134
AC:
2
AN:
149622
Hom.:
0
Cov.:
33
AF XY:
0.0000137
AC XY:
1
AN XY:
73034
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
40712
American (AMR)
AF:
0.00
AC:
0
AN:
15080
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3448
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4900
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4592
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10336
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
302
European-Non Finnish (NFE)
AF:
0.0000297
AC:
2
AN:
67284
Other (OTH)
AF:
0.00
AC:
0
AN:
2066
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000162
Hom.:
0

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 33 Benign:1
Dec 09, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not specified Benign:1
Feb 20, 2018
GeneDx
Significance:Likely 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
PhyloP100
-0.22

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs1170731512; hg19: chr20-62119787; COSMIC: COSV99419684; COSMIC: COSV99419684; API