NM_024580.6:c.3284G>A

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 5 ACMG points: 5P and 0B. PM2PP3_ModeratePP5

The NM_024580.6(EFL1):c.3284G>A(p.Arg1095Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,614,088 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000024 ( 0 hom. )

Consequence

EFL1
NM_024580.6 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:2O:1

Conservation

PhyloP100: 7.64

Publications

8 publications found

Variant links:

Genes affected

EFL1 (HGNC:25789): (elongation factor like GTPase 1) Enables GTPase activity and ribosome binding activity. Involved in GTP metabolic process and mature ribosome assembly. Predicted to be part of ribonucleoprotein complex. Implicated in Shwachman-Diamond syndrome. [provided by Alliance of Genome Resources, Apr 2022]

EFL1 Gene-Disease associations (from GenCC):

Shwachman-Diamond syndrome 2
Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics
Shwachman-Diamond syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

EFL1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 5 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.903

PP5

Variant 15-82130452-C-T is Pathogenic according to our data. Variant chr15-82130452-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 522584.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
EFL1	NM_024580.6 link	c.3284G>A	p.Arg1095Gln	missense_variant	Exon 20 of 20	ENST00000268206.12	NP_078856.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
EFL1	ENST00000268206.12 link	c.3284G>A	p.Arg1095Gln	missense_variant	Exon 20 of 20	1	NM_024580.6	ENSP00000268206.7

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152204

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:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000281

AC:

AN:

249362

AF XY:

0.0000148

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:

0.00

Gnomad NFE exome

AF:

0.0000619

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000239

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000297

AC:

AN:

1112008

Other (OTH)

AF:

0.0000166

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.462

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000329

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74352

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41440

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5202

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68040

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.565

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000564

Hom.:

Bravo

AF:

0.0000189

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000121

AC:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:2Uncertain:2Other:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Shwachman-Diamond syndrome 2

Pathogenic:1Uncertain:1Other:1

Apr 19, 2018

OMIM

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:literature only

- -

Oct 15, 2018

SIB Swiss Institute of Bioinformatics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:curation

This variant is interpreted as Uncertain Significance - Insufficient Evidence, for Shwachman-Diamond syndrome 2, autosomal recessive. The following ACMG Tag(s) were applied: PM2 => Absent from controls (or at extremely low frequency if recessive) in Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium. PP1 => Cosegregation with disease in multiple affected family members in a gene definitively known to cause the disease (https://www.ncbi.nlm.nih.gov/pubmed/28331068). PP3 => Multiple lines of computational evidence support a deleterious effect on the gene or gene product. -

GeneReviews

Significance:not provided

Review Status:no classification provided

Collection Method:literature only

- -

not provided

Pathogenic:1

Mar 07, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely pathogenic

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 1095 of the EFL1 protein (p.Arg1095Gln). This variant is present in population databases (rs376095522, gnomAD 0.006%). This missense change has been observed in individuals with EFL1-related conditions (PMID: 28331068). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 522584). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt EFL1 protein function with a positive predictive value of 80%. Experimental studies have shown that this missense change affects EFL1 function (PMID: 28331068). In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -

Shwachman syndrome

Uncertain:1

Jan 08, 2025

Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:curation

The p.Arg1095Gln variant in EFL1 has been reported in 3 individuals with Shwachman-Diamond syndrome (PMID: 28331068), segregated with disease in 1 affected relative from 1 family (PMID: 28331068), and has been identified in 0.003% (37/1180048) of European (non-Finnish) chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs376095522). Although this variant has been seen in the general population in a heterozygous state, its frequency is low enough to be consistent with a recessive carrier frequency. This variant has also been reported in ClinVar (Variation ID: 522584) and has been interpreted as pathogenic by OMIM and a variant of unknown significance by Swiss Institute of Bioinformatics. Of the 3 affected individuals, all were homozygotes, which increases the likelihood that the p.Arg1095Gln variant is pathogenic (PMID: 28331068). In vitro functional studies provide some evidence that the p.Arg1095Gln variant may slightly impact protein function (PMID: 28331068). However, these types of assays may not accurately represent biological function. Computational computation tools and conservation analyses suggest that this variant may impact the protein, though this information is not predictive enough to determine pathogenicity. Furthermore, although this gene has been reported in association with Shwachman-Diamond syndrome, it currently has moderate evidence for these associations. In summary, while there is some suspicion for a pathogenic role, the clinical significance of this variant is uncertain. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Pathogenic

0.28

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.37

T;.

Eigen

Pathogenic

0.91

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Uncertain

0.95

LIST_S2

Pathogenic

1.0

D;D

M_CAP

Uncertain

0.14

MetaRNN

Pathogenic

0.90

D;D

MetaSVM

Uncertain

0.61

PhyloP100

7.6

PrimateAI

Pathogenic

0.83

PROVEAN

Uncertain

-3.5

D;D

REVEL

Pathogenic

0.75

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0

D;D

Polyphen

1.0

D;D

Vest4

0.93

MVP

0.85

MPC

0.95

ClinPred

1.0

GERP RS

5.1

Varity_R

0.81

gMVP

0.81

Mutation Taster

=6/94

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over