dbSNP rs149544601: ELAC2:p.Ile396Phe (chr17-13002473-T-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_018127.7(ELAC2):c.1186A>T(p.Ile396Phe) variant causes a missense change. The variant allele was found at a frequency of 0.00000343 in 1,457,806 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: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

ELAC2
NM_018127.7 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.17

Variant links:

Genes affected

ELAC2 (HGNC:14198): (elaC ribonuclease Z 2) The protein encoded by this gene has a C-terminal domain with tRNA 3′ processing endoribonuclease activity, which catalyzes the removal of the 3' trailer from precursor tRNAs. The protein also interacts with activated Smad family member 2 (Smad2) and its nuclear partner forkhead box H1 (also known as FAST-1), and reduced expression can suppress transforming growth factor-beta induced growth arrest. Mutations in this gene result in an increased risk of prostate cancer. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009]

ELAC2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.8

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ELAC2	NM_018127.7 link	c.1186A>T	p.Ile396Phe	missense_variant	Exon 13 of 24	ENST00000338034.9	NP_060597.4	Q9BQ52-1A0A0S2Z5M8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ELAC2	ENST00000338034.9 link	c.1186A>T	p.Ile396Phe	missense_variant	Exon 13 of 24	1	NM_018127.7	ENSP00000337445.4		Q9BQ52-1
ELAC2	ENST00000446899.5 link	c.523A>T	p.Ile175Phe	missense_variant	Exon 7 of 10	5		ENSP00000406192.1		H7C2I4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000165

AC:

AN:

242348

Hom.:

AF XY:

0.00000765

AC XY:

AN XY:

130794

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000366

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000343

AC:

AN:

1457806

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

724698

show subpopulations

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:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000330

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Combined oxidative phosphorylation defect type 17

Uncertain:1

Aug 23, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with phenylalanine, which is neutral and non-polar, at codon 396 of the ELAC2 protein (p.Ile396Phe). This variant is present in population databases (rs149544601, gnomAD 0.004%). This variant has not been reported in the literature in individuals affected with ELAC2-related conditions. ClinVar contains an entry for this variant (Variation ID: 1472831). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.29

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Pathogenic

0.20

CADD

Uncertain

DANN

Benign

0.88

DEOGEN2

Benign

0.21

T;.;.

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.95

D;D;D

M_CAP

Benign

0.078

MetaRNN

Pathogenic

0.80

D;D;D

MetaSVM

Benign

-0.38

PrimateAI

Benign

0.48

PROVEAN

Uncertain

-3.5

D;D;D

REVEL

Uncertain

0.40

Sift

Uncertain

0.0020

D;D;D

Sift4G

Uncertain

0.0040

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.86

MutPred

0.48

Loss of catalytic residue at P398 (P = 0.0386);.;.;

MVP

0.89

MPC

0.40

ClinPred

0.75

GERP RS

5.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.65

gMVP

0.72

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