Genetic Variant GRPEL2:p.Ile84Val (chr5-149349672-A-G) – ACMG Classification: Benign (-8 pts)

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_152407.4(GRPEL2):c.250A>G(p.Ile84Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000651 in 1,612,734 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.00020 ( 1 hom., cov: 33)

Exomes 𝑓: 0.000051 ( 2 hom. )

Consequence

GRPEL2
NM_152407.4 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: -0.213

Variant links:

Genes affected

GRPEL2 (HGNC:21060): (GrpE like 2, mitochondrial) Predicted to enable adenyl-nucleotide exchange factor activity and unfolded protein binding activity. Predicted to be involved in protein import into mitochondrial matrix. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

GRPEL2 links:

GRPEL2-AS1 (HGNC:48999): (GRPEL2 antisense RNA 1)

GRPEL2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.011713237).

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRPEL2	NM_152407.4 link	c.250A>G	p.Ile84Val	missense_variant	Exon 3 of 4	ENST00000329271.8	NP_689620.2	Q8TAA5-1
GRPEL2-AS1	NR_132366.1 link	n.119-1274T>C		intron_variant	Intron 1 of 1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GRPEL2	ENST00000329271.8 link	c.250A>G	p.Ile84Val	missense_variant	Exon 3 of 4	1	NM_152407.4	ENSP00000329558.3		Q8TAA5-1

Frequencies

GnomAD3 genomes

AF:

0.000204

AC:

AN:

152250

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00124

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000957

GnomAD3 exomes

AF:

0.000152

AC:

AN:

250478

Hom.:

AF XY:

0.000118

AC XY:

AN XY:

135386

show subpopulations

Gnomad AFR exome

AF:

0.0000616

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00185

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000327

GnomAD4 exome

AF:

0.0000507

AC:

AN:

1460484

Hom.:

Cov.:

AF XY:

0.0000427

AC XY:

AN XY:

726604

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000656

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

9.00e-7

Gnomad4 OTH exome

AF:

0.000729

GnomAD4 genome

AF:

0.000204

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74384

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00124

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00173

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000957

Alfa

AF:

0.000127

Hom.:

Bravo

AF:

0.000106

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000222

AC:

Asia WGS

AF:

0.00318

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Dec 31, 2024

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.060

BayesDel_addAF

Benign

-0.68

BayesDel_noAF

Benign

-0.74

CADD

Benign

DANN

Benign

0.67

DEOGEN2

Benign

0.031

.;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.0

FATHMM_MKL

Benign

0.046

LIST_S2

Benign

0.073

T;T

M_CAP

Benign

0.0047

MetaRNN

Benign

0.012

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

-0.92

.;N

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.48

N;N

REVEL

Benign

0.058

Sift

Benign

0.66

T;T

Sift4G

Benign

1.0

T;T

Polyphen

0.0

.;B

Vest4

0.074

MVP

0.33

MPC

0.19

ClinPred

0.013

GERP RS

-0.54

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.028

gMVP

0.10

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