11-56252357-T-G

Position:

• chr11-56252357-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1 PM2

The NM_001004747.2(OR5T3):​c.104T>G​(p.Leu35Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: OR5T3 NM_001004747.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.933

Genes affected

OR5T3 (HGNC:15297): (olfactory receptor family 5 subfamily T member 3) 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 Uncertain_significance. Variant got 4 ACMG points.

• PM1: In a glycosylation_site N-linked (GlcNAc...) asparagine (size 0) in uniprot entity OR5T3_HUMAN
• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OR5T3	NM_001004747.2	c.104T>G	p.Leu35Arg	missense_variant	1/1	ENST00000313033.4	NP_001004747.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OR5T3	ENST00000313033.4	c.104T>G	p.Leu35Arg	missense_variant	1/1	6	NM_001004747.2	ENSP00000323612.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

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

Jun 22, 2023

The c.158T>G (p.L53R) alteration is located in exon 1 (coding exon 1) of the OR5T3 gene. This alteration results from a T to G substitution at nucleotide position 158, causing the leucine (L) at amino acid position 53 to be replaced by an arginine (R). 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	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.071	T;.
Eigen	Benign	-0.027
Eigen_PC	Benign	-0.26
FATHMM_MKL	Benign	0.28	N
LIST_S2	Benign	0.74	T;T
M_CAP	Benign	0.0019	T
MetaRNN	Uncertain	0.52	D;D
MetaSVM	Benign	-1.1	T
MutationAssessor	Pathogenic	3.4	M;.
PrimateAI	Benign	0.22	T
PROVEAN	Pathogenic	-5.2	D;.
REVEL	Benign	0.074
Sift	Uncertain	0.0040	D;.
Sift4G	Uncertain	0.0020	D;.
Polyphen		0.96	P;.
Vest4		0.61
MutPred		0.72		Loss of stability (P = 0.0584);.;
MVP		0.61
MPC		0.025
ClinPred		0.73	D
GERP RS		3.5
Varity_R		0.57
gMVP		0.33

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.20		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.20		Position offset: 0

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-56019833;