Genetic Variant GRPEL2:p.Pro55Ser (chr5-149348357-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_152407.4(GRPEL2):c.163C>T(p.Pro55Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

GRPEL2
NM_152407.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.03

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 Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.23206371).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
GRPEL2	NM_152407.4 link	c.163C>T	p.Pro55Ser	missense_variant	Exon 2 of 4	ENST00000329271.8	NP_689620.2	Q8TAA5-1
GRPEL2-AS1	NR_132366.1 link	n.160G>A		non_coding_transcript_exon_variant	Exon 2 of 2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
GRPEL2	ENST00000329271.8 link	c.163C>T	p.Pro55Ser	missense_variant	Exon 2 of 4	1	NM_152407.4	ENSP00000329558.3		Q8TAA5-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251142

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135752

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:

0.0000462

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461098

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726874

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:

0.0000187

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 16, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.163C>T (p.P55S) alteration is located in exon 2 (coding exon 2) of the GRPEL2 gene. This alteration results from a C to T substitution at nucleotide position 163, causing the proline (P) at amino acid position 55 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Uncertain

0.015

BayesDel_noAF

Benign

-0.22

CADD

Benign

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.036

.;T;.

Eigen

Uncertain

0.47

Eigen_PC

Uncertain

0.55

FATHMM_MKL

Uncertain

0.94

LIST_S2

Benign

0.85

T;T;D

M_CAP

Benign

0.0048

MetaRNN

Benign

0.23

T;T;T

MetaSVM

Benign

-0.79

MutationAssessor

Benign

1.2

.;L;L

PrimateAI

Benign

0.36

PROVEAN

Benign

-1.9

N;N;D

REVEL

Benign

0.19

Sift

Benign

0.16

T;T;T

Sift4G

Benign

0.23

T;T;T

Polyphen

0.92

.;P;.

Vest4

0.25

MutPred

0.36

Loss of catalytic residue at P55 (P = 0.0032);Loss of catalytic residue at P55 (P = 0.0032);Loss of catalytic residue at P55 (P = 0.0032);

MVP

0.53

MPC

0.72

ClinPred

0.70

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.055

gMVP

0.21

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