Variant 16-48270019-G-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The NM_031490.5(LONP2):c.986G>A(p.Arg329His) variant causes a missense change. The variant allele was found at a frequency of 0.000677 in 1,612,516 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R329C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00043 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00070 ( 1 hom. )

Consequence

LONP2
NM_031490.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.83

Variant links:

Genes affected

LONP2 (HGNC:20598): (lon peptidase 2, peroxisomal) In human, peroxisomes function primarily to catalyze fatty acid beta-oxidation and, as a by-product, produce hydrogen peroxide and superoxide. The protein encoded by this gene is an ATP-dependent protease that likely plays a role in maintaining overall peroxisome homeostasis as well as proteolytically degrading peroxisomal proteins damaged by oxidation. The protein has an N-terminal Lon N substrate recognition domain, an ATPase domain, a proteolytic domain, and, in some isoforms, a C-terminal peroxisome targeting sequence. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jan 2017]

LONP2 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=0.05752465).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LONP2	NM_031490.5 linkuse as main transcript	c.986G>A	p.Arg329His	missense_variant	7/15	ENST00000285737.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LONP2	ENST00000285737.9 linkuse as main transcript	c.986G>A	p.Arg329His	missense_variant	7/15	1	NM_031490.5	P1	Q86WA8-1

Frequencies

GnomAD3 genomes

AF:

0.000434

AC:

AN:

152112

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.000283

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000853

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000489

AC:

122

AN:

249706

Hom.:

AF XY:

0.000548

AC XY:

AN XY:

135062

show subpopulations

Gnomad AFR exome

AF:

0.000311

Gnomad AMR exome

AF:

0.0000874

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000372

Gnomad NFE exome

AF:

0.000921

Gnomad OTH exome

AF:

0.000329

GnomAD4 exome

AF:

0.000702

AC:

1025

AN:

1460286

Hom.:

Cov.:

AF XY:

0.000715

AC XY:

519

AN XY:

726372

show subpopulations

Gnomad4 AFR exome

AF:

0.000150

Gnomad4 AMR exome

AF:

0.0000675

Gnomad4 ASJ exome

AF:

0.0000384

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.000375

Gnomad4 NFE exome

AF:

0.000881

Gnomad4 OTH exome

AF:

0.000265

GnomAD4 genome

AF:

0.000434

AC:

AN:

152230

Hom.:

Cov.:

AF XY:

0.000349

AC XY:

AN XY:

74432

show subpopulations

Gnomad4 AFR

AF:

0.000120

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000283

Gnomad4 NFE

AF:

0.000853

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000807

Hom.:

Bravo

AF:

0.000427

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000698

AC:

ExAC

AF:

0.000642

AC:

EpiCase

AF:

0.00115

EpiControl

AF:

0.000889

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 21, 2024

The c.986G>A (p.R329H) alteration is located in exon 7 (coding exon 7) of the LONP2 gene. This alteration results from a G to A substitution at nucleotide position 986, causing the arginine (R) at amino acid position 329 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

0.077

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.33

Cadd

Benign

Dann

Pathogenic

1.0

DEOGEN2

Benign

0.035

T;.

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.89

D;D

M_CAP

Benign

0.0090

MetaRNN

Benign

0.058

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

L;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.50

N;N

REVEL

Benign

0.12

Sift

Benign

0.18

T;T

Sift4G

Benign

0.34

T;T

Polyphen

0.83

P;.

Vest4

0.19

MVP

0.69

MPC

0.32

ClinPred

0.025

GERP RS

4.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.065

gMVP

0.28

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