chr6-29112782-A-C

Position:

• chr6-29112782-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001005216.4(OR2J3):​c.892A>C​(p.Lys298Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,378 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: OR2J3 NM_001005216.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.256

Genes affected

OR2J3 (HGNC:8261): (olfactory receptor family 2 subfamily J member 3) This gene encodes a G-protein-coupled receptor (GPCR) that functions as an olfactory receptor. Olfactory receptors interact with odorant molecules in the nose to initiate a neuronal response that triggers the perception of a smell. The protein encoded by this gene responds to cis-3-hexen-1-ol, which is released by wounded plants, including cut grass. This gene is situated in a cluster of similar olfactory-receptor coding genes on chromosome 6. [provided by RefSeq, May 2013]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1681441).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
OR2J3	NM_001005216.4	c.892A>C	p.Lys298Gln	missense_variant	4/4	ENST00000641151.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
OR2J3	ENST00000641151.2	c.892A>C	p.Lys298Gln	missense_variant	4/4		NM_001005216.4	P1
OR2J3	ENST00000377169.2	c.892A>C	p.Lys298Gln	missense_variant	1/1			P1
OR2J3	ENST00000641960.1	c.892A>C	p.Lys298Gln	missense_variant	5/5			P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461378 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727000

Gnomad4 AFR exome AF: 0.00

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: 9.00e-7

Gnomad4 OTH exome AF: 0.0000166

GnomAD4 genome Cov.: 32

Bravo AF: 0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 09, 2023

The c.892A>C (p.K298Q) alteration is located in exon 1 (coding exon 1) of the OR2J3 gene. This alteration results from a A to C substitution at nucleotide position 892, causing the lysine (K) at amino acid position 298 to be replaced by a glutamine (Q). 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	0.13
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.57
CADD	Benign	17
DANN	Benign	0.97
Eigen	Benign	-0.27
Eigen_PC	Benign	-0.25
FATHMM_MKL	Benign	0.37	N
LIST_S2	Benign	0.81	.;.;T
M_CAP	Benign	0.0021	T
MetaRNN	Benign	0.17	T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	0.89	N
PrimateAI	Benign	0.21	T
PROVEAN	Uncertain	-3.3	.;.;D
REVEL	Benign	0.057
Sift	Uncertain	0.0090	.;.;D
Sift4G	Uncertain	0.031	.;.;D
Vest4		0.093
MutPred		0.44		Loss of methylation at K298 (P = 0.0011);Loss of methylation at K298 (P = 0.0011);Loss of methylation at K298 (P = 0.0011);
MVP		0.38
MPC		0.48
ClinPred		0.94	D
GERP RS		3.0
gMVP		0.097

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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

Other links and lift over

dbSNP: rs777661564; hg19: chr6-29080559;