Genetic Variant LONRF2:p.Leu676Ser (chr2-100286957-A-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_198461.4(LONRF2):c.2027T>C(p.Leu676Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,614,150 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: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

LONRF2
NM_198461.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.40

Variant links:

Genes affected

LONRF2 (HGNC:24788): (LON peptidase N-terminal domain and ring finger 2) Predicted to enable metal ion binding activity. [provided by Alliance of Genome Resources, Apr 2022]

LONRF2 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.2790754).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LONRF2	NM_198461.4 link	c.2027T>C	p.Leu676Ser	missense_variant	Exon 11 of 12	ENST00000393437.8	NP_940863.3	Q1L5Z9-1
LONRF2	NM_001371783.1 link	c.1298T>C	p.Leu433Ser	missense_variant	Exon 12 of 13		NP_001358712.1
LONRF2	XM_047443537.1 link	c.1298T>C	p.Leu433Ser	missense_variant	Exon 11 of 12		XP_047299493.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LONRF2	ENST00000393437.8 link	c.2027T>C	p.Leu676Ser	missense_variant	Exon 11 of 12	5	NM_198461.4	ENSP00000377086.3		Q1L5Z9-1
LONRF2	ENST00000409647.1 link	c.1298T>C	p.Leu433Ser	missense_variant	Exon 11 of 12	2		ENSP00000386823.1		Q1L5Z9-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

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

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461826

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727218

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

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:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152324

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74490

show subpopulations

Gnomad4 AFR

AF:

0.0000481

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

Bravo

AF:

0.0000113

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

Sep 14, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2027T>C (p.L676S) alteration is located in exon 11 (coding exon 11) of the LONRF2 gene. This alteration results from a T to C substitution at nucleotide position 2027, causing the leucine (L) at amino acid position 676 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

0.26

BayesDel_addAF

Benign

-0.23

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.11

T;.

Eigen

Uncertain

0.39

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.86

D;D

M_CAP

Benign

0.030

MetaRNN

Benign

0.28

T;T

MetaSVM

Benign

-0.67

MutationAssessor

Uncertain

2.1

M;.

PrimateAI

Uncertain

0.49

PROVEAN

Pathogenic

-5.1

D;D

REVEL

Benign

0.27

Sift

Pathogenic

0.0

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

0.99

D;.

Vest4

0.42

MVP

0.17

MPC

1.2

ClinPred

0.99

GERP RS

3.8

Varity_R

0.78

gMVP

0.77

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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