3-98353905-A-G

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001005517.1(OR5K4):c.52A>G(p.Thr18Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000182 in 1,613,804 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T18I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

OR5K4
NM_001005517.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -1.07

Variant links:

Genes affected

OR5K4 (HGNC:31291): (olfactory receptor family 5 subfamily K member 4) 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]

OR5K4 links:

ENSG00000251088 (HGNC:):

ENSG00000251088 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.074341476).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR5K4	NM_001005517.1 link	c.52A>G	p.Thr18Ala	missense_variant	Exon 1 of 1	ENST00000354924.2	NP_001005517.1	A6NMS3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OR5K4	ENST00000354924.2 link	c.52A>G	p.Thr18Ala	missense_variant	Exon 1 of 1	6	NM_001005517.1	ENSP00000347003.2		A6NMS3
ENSG00000251088	ENST00000508616.1 link	n.188+11476A>G		intron_variant	Intron 3 of 3	1

Frequencies

GnomAD3 genomes

AF:

0.0000788

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000917

AC:

AN:

250870

Hom.:

AF XY:

0.0000811

AC XY:

AN XY:

135586

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000185

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000193

AC:

282

AN:

1461580

Hom.:

Cov.:

AF XY:

0.000166

AC XY:

121

AN XY:

727094

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000224

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:

0.000229

Gnomad4 OTH exome

AF:

0.000414

GnomAD4 genome

AF:

0.0000788

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000941

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000230

Hom.:

Bravo

AF:

0.000110

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 16, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.52A>G (p.T18A) alteration is located in exon 1 (coding exon 1) of the OR5K4 gene. This alteration results from a A to G substitution at nucleotide position 52, causing the threonine (T) at amino acid position 18 to be replaced by an alanine (A). 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

0.10

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.75

CADD

Benign

2.1

DANN

Benign

0.71

DEOGEN2

Benign

0.022

Eigen

Benign

-0.98

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.050

LIST_S2

Benign

0.65

M_CAP

Benign

0.00044

MetaRNN

Benign

0.074

MetaSVM

Benign

-0.92

MutationAssessor

Uncertain

2.1

PrimateAI

Benign

0.21

PROVEAN

Uncertain

-3.5

REVEL

Benign

0.019

Sift

Uncertain

0.028

Sift4G

Benign

0.073

Polyphen

0.044

Vest4

0.047

MVP

0.048

MPC

0.0091

ClinPred

0.029

GERP RS

0.56

Varity_R

0.082

gMVP

0.13

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over