rs753095

Positions:

• chr11-48307092-C-A
• chr11-48307092-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001004725.1(OR4S1):​c.870C>A​(p.Asn290Lys) 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. 15/20 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 31)
• Consequence: OR4S1 NM_001004725.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.35

Genes affected

OR4S1 (HGNC:14705): (olfactory receptor family 4 subfamily S 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. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.049348444).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OR4S1	NM_001004725.1	c.870C>A	p.Asn290Lys	missense_variant	1/1	ENST00000319988.1	NP_001004725.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OR4S1	ENST00000319988.1	c.870C>A	p.Asn290Lys	missense_variant	1/1		NM_001004725.1	ENSP00000321447	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 36

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.097
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.78
CADD	Benign	0.014
DANN	Benign	0.47
DEOGEN2	Benign	0.0033	T
Eigen	Benign	-1.8
Eigen_PC	Benign	-1.7
FATHMM_MKL	Benign	0.0047	N
LIST_S2	Benign	0.26	T
M_CAP	Benign	0.0026	T
MetaRNN	Benign	0.049	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-1.5	N
MutationTaster	Benign	1.0	P
PrimateAI	Benign	0.18	T
PROVEAN	Benign	0.45	N
REVEL	Benign	0.014
Sift	Benign	0.19	T
Sift4G	Benign	0.25	T
Polyphen		0.0010	B
Vest4		0.090
MutPred		0.33		Gain of methylation at N290 (P = 0.0022);
MVP		0.21
ClinPred		0.065	T
GERP RS		-3.7
Varity_R		0.039
gMVP		0.040

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: rs753095; hg19: chr11-48328644;