11-56641640-C-G

Variant names:

• chr11-56641640-C-G
• rs779510819
• NM_001002925.1:c.800G>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001002925.1(OR5AP2):​c.800G>C​(p.Arg267Pro) 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 1,461,772 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. R267H) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: OR5AP2 NM_001002925.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.555
• Publications: 0 publications found

Genes affected

OR5AP2 (HGNC:15258): (olfactory receptor family 5 subfamily AP 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]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.3967299).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001002925.1. 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
	OR5AP2	NM_001002925.1	MANE Select	c.800G>C	p.Arg267Pro	missense	Exon 1 of 1	NP_001002925.1	Q8NGF4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	OR5AP2	ENST00000544374.3	TSL:6 MANE Select	c.800G>C	p.Arg267Pro	missense	Exon 1 of 1	ENSP00000442701.2	Q8NGF4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461772 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 727190

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53332

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111980

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.36
BayesDel_addAF	Uncertain	0.046	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.0098	T
Eigen	Benign	0.078
Eigen_PC	Benign	-0.10
FATHMM_MKL	Benign	0.15	N
LIST_S2	Benign	0.44	T
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.40	T
MetaSVM	Benign	-0.85	T
MutationAssessor	Pathogenic	3.2	M
PhyloP100		0.56
PrimateAI	Benign	0.21	T
REVEL	Benign	0.26
Polyphen		1.0	D
MutPred		0.61		Gain of glycosylation at R267 (P = 0.0202)
MVP		0.62
ClinPred		0.97	D
GERP RS		2.1
Varity_R		0.90
gMVP		0.31
Mutation Taster		=91/9	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		Details are displayed if max score is > 0.2

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

Other links and lift over

dbSNP: rs779510819; hg19: chr11-56409116;