Variant 19-8731684-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001004699.3(OR2Z1):c.656G>C(p.Gly219Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,886 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

OR2Z1
NM_001004699.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0130

Variant links:

Genes affected

OR2Z1 (HGNC:15391): (olfactory receptor family 2 subfamily Z member 1) 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]

OR2Z1 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.042606086).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OR2Z1	NM_001004699.3 linkuse as main transcript	c.656G>C	p.Gly219Ala	missense_variant	3/3	ENST00000641125.1	NP_001004699.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OR2Z1	ENST00000641125.1 linkuse as main transcript	c.656G>C	p.Gly219Ala	missense_variant	3/3		NM_001004699.3	ENSP00000493322	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 07, 2024

The c.656G>C (p.G219A) alteration is located in exon 1 (coding exon 1) of the OR2Z1 gene. This alteration results from a G to C substitution at nucleotide position 656, causing the glycine (G) at amino acid position 219 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

0.094

BayesDel_addAF

Benign

-0.35

BayesDel_noAF

Benign

-0.75

CADD

Benign

6.8

DANN

Benign

0.43

DEOGEN2

Benign

0.012

T;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.0050

LIST_S2

Benign

0.092

.;T

M_CAP

Benign

0.0011

MetaRNN

Benign

0.043

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.19

N;N

MutationTaster

Benign

1.0

PrimateAI

Benign

0.30

PROVEAN

Benign

1.4

.;N

REVEL

Benign

0.038

Sift

Benign

0.91

.;T

Sift4G

Benign

1.0

.;T

Polyphen

0.0020

B;B

Vest4

0.062

MutPred

0.45

Gain of glycosylation at T216 (P = 0.1583);Gain of glycosylation at T216 (P = 0.1583);

MVP

0.13

MPC

0.036

ClinPred

0.045

GERP RS

2.1

Varity_R

0.036

gMVP

0.11

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

Details are displayed if max score is > 0.2

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

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over