Genetic Variant OSGEPL1:p.Asn342His (chr2-189752919-T-G) – 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.1024A>C(p.Asn342His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000236 in 1,613,450 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. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

OSGEPL1
NM_022353.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.290

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:

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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=0.054686368).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OSGEPL1	NM_022353.3 link	c.1024A>C	p.Asn342His	missense_variant	Exon 6 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.1024A>C	p.Asn342His	missense_variant	Exon 6 of 9	1	NM_022353.3	ENSP00000264151.5		Q9H4B0-1

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

152130

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000435

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:

0.0000282

AC:

AN:

247986

Hom.:

AF XY:

0.0000149

AC XY:

AN XY:

134530

show subpopulations

Gnomad AFR exome

AF:

0.000453

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:

0.0000137

AC:

AN:

1461320

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

726924

show subpopulations

Gnomad4 AFR exome

AF:

0.000538

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:

0.0000331

GnomAD4 genome

AF:

0.000118

AC:

AN:

152130

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74324

show subpopulations

Gnomad4 AFR

AF:

0.000435

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:

0.0000986

Hom.:

Bravo

AF:

0.000147

ESP6500AA

AF:

0.000533

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000331

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Nov 25, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1024A>C (p.N342H) alteration is located in exon 6 (coding exon 5) of the OSGEPL1 gene. This alteration results from a A to C substitution at nucleotide position 1024, causing the asparagine (N) at amino acid position 342 to be replaced by a histidine (H). 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

0.079

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.72

CADD

Benign

1.3

DANN

Benign

0.93

DEOGEN2

Benign

0.024

T;.;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.11

LIST_S2

Benign

0.67

.;T;T

M_CAP

Benign

0.0056

MetaRNN

Benign

0.055

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.36

N;N;N

PrimateAI

Benign

0.26

PROVEAN

Benign

-1.9

N;N;N

REVEL

Benign

0.041

Sift

Benign

0.10

T;T;T

Sift4G

Benign

0.13

T;T;T

Polyphen

0.0020

B;.;B

Vest4

0.19

MVP

0.17

MPC

0.15

ClinPred

0.014

GERP RS

-5.3

Varity_R

0.098

gMVP

0.35

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