rs193920753

Variant names:

• chr11-56319006-C-A
• rs193920753
• NM_001005202.2:c.700C>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001005202.2(OR8K3):​c.700C>A​(p.Gln234Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: OR8K3 NM_001005202.2 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: -1.16
• Publications: 0 publications found

Genes affected

OR8K3 (HGNC:15313): (olfactory receptor family 8 subfamily K member 3 (gene/pseudogene)) Olfactory receptors interact with odorant molecules in the nose, to initiate a neuronal response that triggers the perception of a smell. The olfactory receptor proteins are members of a large family of G-protein-coupled receptors (GPCR) arising from single coding-exon genes. Olfactory receptors share a 7-transmembrane domain structure with many neurotransmitter and hormone receptors and are responsible for the recognition and G protein-mediated transduction of odorant signals. The olfactory receptor gene family is the largest in the genome. The nomenclature assigned to the olfactory receptor genes and proteins for this organism is independent of other organisms. This olfactory receptor gene is a segregating pseudogene, where some individuals have an allele that encodes a functional olfactory receptor, while other individuals have an allele encoding a protein that is predicted to be non-functional. [provided by RefSeq, Jun 2015]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.036906987).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001005202.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OR8K3	NM_001005202.2	MANE Select	c.700C>A	p.Gln234Lys	missense	Exon 3 of 3	NP_001005202.1	Q8NH51

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OR8K3	ENST00000641662.1	MANE Select	c.700C>A	p.Gln234Lys	missense	Exon 3 of 3	ENSP00000493271.1	Q8NH51
	OR8K3	ENST00000641689.1		c.700C>A	p.Gln234Lys	missense	Exon 2 of 2	ENSP00000493440.1	Q8NH51

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
-	1	-	Prostate cancer (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.074
BayesDel_addAF	Benign	-0.38	T
BayesDel_noAF	Benign	-0.78
CADD	Benign	10
DANN	Benign	0.25
DEOGEN2	Benign	0.0036	T
Eigen	Benign	-1.4
Eigen_PC	Benign	-1.4
FATHMM_MKL	Benign	0.016	N
LIST_S2	Benign	0.094	T
M_CAP	Benign	0.00094	T
MetaRNN	Benign	0.037	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	-0.36	N
PhyloP100		-1.2
PrimateAI	Benign	0.17	T
Polyphen		0.0	B
MutPred		0.34		Gain of methylation at Q234 (P = 0.0101)
ClinPred		0.040	T
GERP RS		-0.17
Varity_R		0.092
gMVP		0.072
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs193920753; hg19: chr11-56086482; COSMIC: COSV57133346;