19-9093813-C-G

Position:

• chr19-9093813-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001004456.2(OR1M1):​c.569C>G​(p.Thr190Arg) 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. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 31)
• Consequence: OR1M1 NM_001004456.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.0210

Genes affected

OR1M1 (HGNC:8220): (olfactory receptor family 1 subfamily M 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]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.29488897).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
OR1M1	NM_001004456.2	c.569C>G	p.Thr190Arg	missense_variant	2/2	ENST00000641627.1	NP_001004456.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
OR1M1	ENST00000641627.1	c.569C>G	p.Thr190Arg	missense_variant	2/2		NM_001004456.2	ENSP00000493107	P1
OR1M1	ENST00000429566.3	c.569C>G	p.Thr190Arg	missense_variant	1/1			ENSP00000401966	P1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 31

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 27, 2023

The c.569C>G (p.T190R) alteration is located in exon 1 (coding exon 1) of the OR1M1 gene. This alteration results from a C to G substitution at nucleotide position 569, causing the threonine (T) at amino acid position 190 to be replaced by an arginine (R). 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	0.15
BayesDel_addAF	Benign	-0.22	T
BayesDel_noAF	Benign	-0.55
CADD	Benign	19
DANN	Uncertain	0.98
DEOGEN2	Benign	0.021	T;T
Eigen	Benign	-0.050
Eigen_PC	Benign	-0.26
FATHMM_MKL	Benign	0.058	N
LIST_S2	Benign	0.36	.;T
M_CAP	Benign	0.0028	T
MetaRNN	Benign	0.29	T;T
MetaSVM	Benign	-0.75	T
MutationAssessor	Benign	1.7	L;L
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.23	T
PROVEAN	Uncertain	-2.4	.;N
REVEL	Benign	0.11
Sift	Pathogenic	0.0	.;D
Sift4G	Pathogenic	0.0	.;D
Polyphen		0.99	D;D
Vest4		0.17
MutPred		0.64		Gain of solvent accessibility (P = 0.0808);Gain of solvent accessibility (P = 0.0808);
MVP		0.51
MPC		0.18
ClinPred		0.91	D
GERP RS		3.8
Varity_R		0.32
gMVP		0.22

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.16		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.

Other links and lift over

hg19: chr19-9204489; COSMIC: COSV104436523;