Genetic Variant OR52K2:p.Pro32His (chr11-4449434-C-A) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_001005172.2(OR52K2):c.95C>A(p.Pro32His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000222 in 1,574,554 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

OR52K2
NM_001005172.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.16

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 4 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.853

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.95C>A	p.Pro32His	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.95C>A	p.Pro32His	missense	Exon 1 of 1	ENSP00000318956.4	Q8NGK3
ENSG00000291144	ENST00000641797.5		n.387-19933C>A		intron	N/A
ENSG00000291144	ENST00000685350.2		n.392-19933C>A		intron	N/A

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152098

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000242

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:

0.0000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000927

AC:

AN:

215818

AF XY:

0.00

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:

0.0000202

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000218

AC:

AN:

1422456

Hom.:

Cov.:

AF XY:

0.0000213

AC XY:

AN XY:

703652

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32536

American (AMR)

AF:

0.00

AC:

AN:

40182

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22774

East Asian (EAS)

AF:

0.00

AC:

AN:

39494

South Asian (SAS)

AF:

0.00

AC:

AN:

78274

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5538

European-Non Finnish (NFE)

AF:

0.0000284

AC:

AN:

1093312

Other (OTH)

AF:

0.00

AC:

AN:

58736

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.470

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

AF:

0.0000263

AC:

AN:

152098

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74274

show subpopulations

African (AFR)

AF:

0.0000242

AC:

AN:

41400

American (AMR)

AF:

0.00

AC:

AN:

15262

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4820

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ExAC

AF:

0.0000165

AC:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.73

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Benign

-0.36

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.026

Eigen

Uncertain

0.52

Eigen_PC

Uncertain

0.34

FATHMM_MKL

Benign

0.53

LIST_S2

Uncertain

0.95

M_CAP

Benign

0.0049

MetaRNN

Pathogenic

0.85

MetaSVM

Benign

-0.70

MutationAssessor

Pathogenic

4.0

PhyloP100

2.2

PrimateAI

Benign

0.27

PROVEAN

Pathogenic

-8.0

REVEL

Benign

0.13

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.99

Vest4

0.68

MutPred

0.71

Gain of catalytic residue at P32 (P = 0.0848)

MVP

0.47

MPC

0.011

ClinPred

0.97

GERP RS

4.4

PromoterAI

0.0098

Neutral

(source)

Varity_R

0.95

gMVP

0.29

Mutation Taster

=100/0

polymorphism

(source)

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

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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