rs1178893398

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_001004748.1(OR51A2):c.522C>A(p.Asn174Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0 ( 0 hom., cov: 17)

Exomes 𝑓: 0.0000025 ( 1 hom. )

Failed GnomAD Quality Control

Consequence

OR51A2
NM_001004748.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -5.55

Publications

1 publications found

Variant links:

Genes affected

OR51A2 (HGNC:14764): (olfactory receptor family 51 subfamily A 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]

OR51A2 links:

MMP26 (HGNC:14249): (matrix metallopeptidase 26) Proteins of the matrix metalloproteinase (MMP) family are involved in the breakdown of extracellular matrix in normal physiological processes, such as embryonic development, reproduction, and tissue remodeling, as well as in disease processes, such as arthritis and metastasis. The encoded preproprotein is proteolytically processed to generate the mature enzyme. This enzyme may degrade collagen type IV, fibronectin, fibrinogen, and beta-casein, and activate matrix metalloproteinase-9 by cleavage. The protein differs from most MMP family members in that it lacks a conserved C-terminal protein domain. The encoded protein may promote cell invasion in multiple human cancers. [provided by RefSeq, May 2016]

MMP26 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.08770284).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR51A2	NM_001004748.1 link	c.522C>A	p.Asn174Lys	missense_variant	Exon 1 of 1	ENST00000380371.1	NP_001004748.1	Q8NGJ7A0A126GWD5
MMP26	NM_021801.5 link	c.-144-32876G>T		intron_variant	Intron 2 of 7	ENST00000380390.6	NP_068573.2	Q9NRE1
MMP26	NM_001384608.1 link	c.-152-33078G>T		intron_variant	Intron 2 of 7		NP_001371537.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
OR51A2	ENST00000380371.1 link	c.522C>A	p.Asn174Lys	missense_variant	Exon 1 of 1	6	NM_001004748.1	ENSP00000369729.1	Q8NGJ7
MMP26	ENST00000380390.6 link	c.-144-32876G>T		intron_variant	Intron 2 of 7	5	NM_021801.5	ENSP00000369753.1	Q9NRE1
MMP26	ENST00000300762.2 link	c.-152-33078G>T		intron_variant	Intron 2 of 7	1		ENSP00000300762.2	A0A8J8YUH5

Frequencies

GnomAD3 genomes

AF:

0.00

AC:

AN:

109364

Hom.:

Cov.:

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000142

AC:

AN:

210820

AF XY:

0.00000876

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.000115

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000214

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000253

AC:

AN:

1186980

Hom.:

Cov.:

AF XY:

0.00000168

AC XY:

AN XY:

595264

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30336

American (AMR)

AF:

0.00

AC:

AN:

35580

Ashkenazi Jewish (ASJ)

AF:

0.0000436

AC:

AN:

22928

East Asian (EAS)

AF:

0.00

AC:

AN:

32916

South Asian (SAS)

AF:

0.00

AC:

AN:

80218

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47446

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5040

European-Non Finnish (NFE)

AF:

0.00000227

AC:

AN:

881756

Other (OTH)

AF:

0.00

AC:

AN:

50760

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Data not reliable, filtered out with message: AC0;AS_VQSR

AF:

0.00

AC:

AN:

109482

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

53094

African (AFR)

AF:

0.00

AC:

AN:

33098

American (AMR)

AF:

0.00

AC:

AN:

9714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2462

East Asian (EAS)

AF:

0.00

AC:

AN:

3350

South Asian (SAS)

AF:

0.00

AC:

AN:

3792

European-Finnish (FIN)

AF:

0.00

AC:

AN:

6746

Middle Eastern (MID)

AF:

0.00

AC:

AN:

206

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

48110

Other (OTH)

AF:

0.00

AC:

AN:

1418

Alfa

AF:

0.0000516

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Apr 29, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.522C>A (p.N174K) alteration is located in exon 1 (coding exon 1) of the OR51A2 gene. This alteration results from a C to A substitution at nucleotide position 522, causing the asparagine (N) at amino acid position 174 to be replaced by a lysine (K). 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

0.14

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.68

CADD

Benign

0.29

(source)

DANN

Benign

0.84

DEOGEN2

Benign

0.0067

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.2

FATHMM_MKL

Benign

0.037

LIST_S2

Benign

0.55

M_CAP

Benign

0.018

MetaRNN

Benign

0.088

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.2

PhyloP100

-5.5

PrimateAI

Benign

0.25

PROVEAN

Uncertain

-2.7

REVEL

Benign

0.12

Sift

Benign

0.033

Sift4G

Uncertain

0.029

Polyphen

0.014

Vest4

0.11

MutPred

0.50

Gain of methylation at N174 (P = 0.0056);

MVP

0.60

MPC

1.3

ClinPred

0.072

GERP RS

-2.6

Varity_R

0.13

gMVP

0.074

Mutation Taster

=100/0

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

rs1178893398

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over