12-55401193-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001005518.1(OR6C65):​c.665C>T​(p.Thr222Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000836 in 1,613,928 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T222A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000087 ( 0 hom. )

Consequence

OR6C65
NM_001005518.1 missense

Scores

3
3
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.956
Variant links:
Genes affected
OR6C65 (HGNC:31295): (olfactory receptor family 6 subfamily C member 65) 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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.30462262).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
OR6C65NM_001005518.1 linkuse as main transcriptc.665C>T p.Thr222Ile missense_variant 1/1 ENST00000379665.3 NP_001005518.1 A6NJZ3A0A126GW71

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
OR6C65ENST00000379665.3 linkuse as main transcriptc.665C>T p.Thr222Ile missense_variant 1/16 NM_001005518.1 ENSP00000368986.2 A6NJZ3

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152116
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000135
AC:
34
AN:
251448
Hom.:
0
AF XY:
0.000184
AC XY:
25
AN XY:
135892
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000264
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000869
AC:
127
AN:
1461812
Hom.:
0
Cov.:
33
AF XY:
0.0000963
AC XY:
70
AN XY:
727210
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000112
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:
0.000105
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152116
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74302
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000882
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000198
Hom.:
0
Bravo
AF:
0.0000718
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000519
AC:
2
ExAC
AF:
0.000123
AC:
15
EpiCase
AF:
0.000273
EpiControl
AF:
0.000415

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 submitterclinical testingAmbry GeneticsMay 09, 2022The c.665C>T (p.T222I) alteration is located in exon 1 (coding exon 1) of the OR6C65 gene. This alteration results from a C to T substitution at nucleotide position 665, causing the threonine (T) at amino acid position 222 to be replaced by an isoleucine (I). 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
0.17
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.55
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.032
T
Eigen
Benign
0.13
Eigen_PC
Benign
-0.12
FATHMM_MKL
Benign
0.048
N
LIST_S2
Uncertain
0.87
D
M_CAP
Benign
0.0014
T
MetaRNN
Benign
0.30
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.6
M
PrimateAI
Benign
0.22
T
PROVEAN
Pathogenic
-5.5
D
REVEL
Benign
0.053
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.99
D
Vest4
0.39
MVP
0.12
MPC
0.031
ClinPred
0.78
D
GERP RS
2.8
Varity_R
0.64
gMVP
0.054

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs768482538; hg19: chr12-55794977; API