Genetic Variant OR52K2:p.Arg124Leu (chr11-4449710-G-T) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001005172.2(OR52K2):c.371G>T(p.Arg124Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R124H) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

OR52K2
NM_001005172.2 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.59

Publications

2 publications found

Variant links:

Genes affected

OR52K2 (HGNC:15223): (olfactory receptor family 52 subfamily K member 2) 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]

OR52K2 links:

ENSG00000291144 (HGNC:):

ENSG00000291144 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001005172.2. 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
	OR52K2	NM_001005172.2	MANE Select	c.371G>T	p.Arg124Leu	missense	Exon 1 of 1	NP_001005172.2	Q8NGK3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
OR52K2	ENST00000325719.4	TSL:6 MANE Select	c.371G>T	p.Arg124Leu	missense	Exon 1 of 1	ENSP00000318956.4	Q8NGK3
ENSG00000291144	ENST00000641797.5		n.387-19657G>T		intron	N/A
ENSG00000291144	ENST00000685350.2		n.392-19657G>T		intron	N/A

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000119

AC:

AN:

251122

AF XY:

0.0000221

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461874

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727230

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112008

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.0000247

AC:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.76

BayesDel_addAF

Benign

-0.0034

BayesDel_noAF

Uncertain

-0.060

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.12

Eigen

Benign

-0.033

Eigen_PC

Benign

-0.098

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Benign

0.72

M_CAP

Benign

0.014

MetaRNN

Uncertain

0.50

MetaSVM

Uncertain

-0.14

MutationAssessor

Pathogenic

4.3

PhyloP100

5.6

PrimateAI

Benign

0.21

PROVEAN

Pathogenic

-6.6

REVEL

Uncertain

0.37

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.53

Vest4

0.64

MutPred

0.25

Loss of catalytic residue at R124 (P = 0.2696)

MVP

0.67

MPC

0.0041

ClinPred

0.93

GERP RS

1.3

PromoterAI

-0.0035

Neutral

(source)

Varity_R

0.76

gMVP

0.64

Mutation Taster

=98/2

polymorphism

(source)

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over