chr11-48264704-C-G

Position:

• chr11-48264704-C-G

Variant summary

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

The NM_001004726.1(OR4X1):​c.844C>G​(p.Pro282Ala) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P282S) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: OR4X1 NM_001004726.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 4.66

Genes affected

OR4X1 (HGNC:14854): (olfactory receptor family 4 subfamily X member 1) 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, Jul 2015]

ACMG classification

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/exons	MANE	Protein	UniProt
OR4X1	NM_001004726.1	c.844C>G	p.Pro282Ala	missense_variant	1/1	ENST00000320048.1	NP_001004726.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OR4X1	ENST00000320048.1	c.844C>G	p.Pro282Ala	missense_variant	1/1	6	NM_001004726.1	ENSP00000321506.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.028	T
BayesDel_noAF	Benign	-0.20
CADD	Benign	22
DANN	Uncertain	0.99
DEOGEN2	Benign	0.021	T
Eigen	Pathogenic	0.78
Eigen_PC	Uncertain	0.58
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.043	D
MetaRNN	Uncertain	0.62	D
MetaSVM	Uncertain	0.66	D
MutationAssessor	Pathogenic	4.1	H
PrimateAI	Benign	0.23	T
PROVEAN	Pathogenic	-7.2	D
REVEL	Benign	0.27
Sift	Uncertain	0.0060	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.32
MutPred		0.49		Gain of sheet (P = 0.0827);
MVP		0.88
MPC		0.0077
ClinPred		0.95	D
GERP RS		4.3
Varity_R		0.75
gMVP		0.16

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs10838852; hg19: chr11-48286256;