rs138790336

Variant names:

• chr1-247921102-G-A
• rs138790336
• NM_001005522.2:c.85G>A

Your query was ambiguous. Multiple possible variants found:

• chr1-247921102-G-A
• chr1-247921102-G-C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001005522.2(OR2T8):​c.85G>A​(p.Val29Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict 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. V29L) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 30)
• Consequence: OR2T8 NM_001005522.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0140
• Publications: 2 publications found

Genes affected

OR2T8 (HGNC:15020): (olfactory receptor family 2 subfamily T member 8) 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: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.03671682).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
OR2T8	NM_001005522.2	c.85G>A	p.Val29Ile	missense_variant	Exon 2 of 2	ENST00000641945.2	NP_001005522.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
OR2T8	ENST00000641945.2	c.85G>A	p.Val29Ile	missense_variant	Exon 2 of 2		NM_001005522.2	ENSP00000493286.1

Frequencies

GnomAD3 genomes Cov.: 30

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 30

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.094
BayesDel_addAF	Benign	-0.37	T
BayesDel_noAF	Benign	-0.77
CADD	Benign	0.11
DANN	Benign	0.46
DEOGEN2	Benign	0.0042	T;T
Eigen	Benign	-1.7
Eigen_PC	Benign	-1.8
FATHMM_MKL	Benign	0.024	N
LIST_S2	Benign	0.24	.;T
M_CAP	Benign	0.00048	T
MetaRNN	Benign	0.037	T;T
MetaSVM	Benign	-0.96	T
MutationAssessor	Benign	-0.70	N;N
PhyloP100		0.014
PrimateAI	Benign	0.23	T
PROVEAN	Benign	-0.41	.;N
REVEL	Benign	0.018
Sift	Benign	0.49	.;T
Sift4G	Benign	1.0	.;T
Polyphen		0.0010	B;B
Vest4		0.073
MutPred		0.44		Gain of catalytic residue at L34 (P = 0.0395);Gain of catalytic residue at L34 (P = 0.0395);
MVP		0.22
ClinPred		0.054	T
GERP RS		-3.4
Varity_R		0.068
gMVP		0.047
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs138790336; hg19: chr1-248084404;