Genetic Variant OR8J3:p.Pro283Leu (chr11-56136871-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001004064.2(OR8J3):c.848C>T(p.Pro283Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,140 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Consequence

OR8J3
NM_001004064.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.69

Variant links:

Genes affected

OR8J3 (HGNC:15312): (olfactory receptor family 8 subfamily J member 3) Predicted to enable odorant binding activity and olfactory receptor activity. Predicted to be involved in G protein-coupled receptor signaling pathway and sensory perception of smell. Predicted to be located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

OR8J3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR8J3	NM_001004064.2 link	c.848C>T	p.Pro283Leu	missense_variant	Exon 2 of 2	ENST00000642058.1	NP_001004064.1	Q8NGG0A0A126GVE3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR8J3	ENST00000642058.1 link	c.848C>T	p.Pro283Leu	missense_variant	Exon 2 of 2	NM_001004064.2	ENSP00000493166.1	Q8NGG0
OR8J3	ENST00000641913.1 link	c.848C>T	p.Pro283Leu	missense_variant	Exon 2 of 2		ENSP00000493417.1	Q8NGG0
OR8J3	ENST00000641489.1 link	n.197C>T		non_coding_transcript_exon_variant	Exon 2 of 2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Cov.:

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152140

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74316

show subpopulations

Gnomad4 AFR

AF:

0.00

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:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

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.848C>T (p.P283L) alteration is located in exon 1 (coding exon 1) of the OR8J3 gene. This alteration results from a C to T substitution at nucleotide position 848, causing the proline (P) at amino acid position 283 to be replaced by a leucine (L). 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

Uncertain

0.45

BayesDel_addAF

Benign

-0.071

BayesDel_noAF

Benign

-0.34

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0070

T;T;T

Eigen

Uncertain

0.61

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.78

.;.;T

M_CAP

Benign

0.0011

MetaRNN

Uncertain

0.67

D;D;D

MetaSVM

Benign

-0.96

MutationAssessor

Pathogenic

3.6

H;H;H

PrimateAI

Benign

0.20

PROVEAN

Pathogenic

-9.5

.;.;D

REVEL

Benign

0.23

Sift

Pathogenic

0.0

.;.;D

Sift4G

Uncertain

0.0080

.;.;D

Polyphen

1.0

D;D;D

Vest4

0.68

MutPred

0.53

Gain of helix (P = 0.2684);Gain of helix (P = 0.2684);Gain of helix (P = 0.2684);

MVP

0.43

MPC

0.059

ClinPred

1.0

GERP RS

3.3

Varity_R

0.92

gMVP

0.65

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.050

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