Genetic Variant OSGEPL1:p.Leu306Val (chr2-189753963-G-C) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_022353.3(OSGEPL1):c.916C>G(p.Leu306Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000589 in 1,613,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 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 0.00028 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000036 ( 0 hom. )

Consequence

OSGEPL1
NM_022353.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.54

Variant links:

Genes affected

OSGEPL1 (HGNC:23075): (O-sialoglycoprotein endopeptidase like 1) Predicted to enable N(6)-L-threonylcarbamoyladenine synthase activity and metal ion binding activity. Predicted to be involved in tRNA threonylcarbamoyladenosine modification. Located in mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

OSGEPL1 links:

ANKAR (HGNC:26350): (ankyrin and armadillo repeat containing) Predicted to be integral component of membrane. [provided by Alliance of Genome Resources, Apr 2022]

ANKAR links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.047365665).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OSGEPL1	NM_022353.3 link	c.916C>G	p.Leu306Val	missense_variant	Exon 5 of 9	ENST00000264151.10	NP_071748.2	Q9H4B0-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OSGEPL1	ENST00000264151.10 link	c.916C>G	p.Leu306Val	missense_variant	Exon 5 of 9	1	NM_022353.3	ENSP00000264151.5		Q9H4B0-1

Frequencies

GnomAD3 genomes

AF:

0.000283

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00104

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000683

AC:

AN:

248896

Hom.:

AF XY:

0.0000370

AC XY:

AN XY:

135042

show subpopulations

Gnomad AFR exome

AF:

0.00110

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:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000356

AC:

AN:

1461462

Hom.:

Cov.:

AF XY:

0.0000344

AC XY:

AN XY:

727008

show subpopulations

Gnomad4 AFR exome

AF:

0.00128

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:

0.00

Gnomad4 OTH exome

AF:

0.000133

GnomAD4 genome

AF:

0.000282

AC:

AN:

152282

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74450

show subpopulations

Gnomad4 AFR

AF:

0.00103

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000169

Hom.:

Bravo

AF:

0.000321

ESP6500AA

AF:

0.000263

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000497

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 27, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.916C>G (p.L306V) alteration is located in exon 5 (coding exon 4) of the OSGEPL1 gene. This alteration results from a C to G substitution at nucleotide position 916, causing the leucine (L) at amino acid position 306 to be replaced by a valine (V). 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

0.12

BayesDel_addAF

Benign

-0.50

BayesDel_noAF

Benign

-0.54

CADD

Benign

DANN

Benign

0.92

DEOGEN2

Benign

0.011

T;.;T;.

Eigen

Benign

0.15

Eigen_PC

Benign

0.21

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.82

.;T;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.047

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

L;L;L;.

PrimateAI

Benign

0.45

PROVEAN

Benign

-0.40

N;N;N;N

REVEL

Benign

0.032

Sift

Benign

0.54

T;T;T;T

Sift4G

Benign

0.52

T;T;T;T

Polyphen

0.81

P;.;P;.

Vest4

0.30

MVP

0.41

MPC

0.34

ClinPred

0.068

GERP RS

4.5

Varity_R

0.14

gMVP

0.44

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