Variant 1-23875143-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001841.3(CNR2):c.475G>T(p.Val159Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000247 in 1,460,170 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

CNR2
NM_001841.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.337

Variant links:

Genes affected

CNR2 (HGNC:2160): (cannabinoid receptor 2) The cannabinoid delta-9-tetrahydrocannabinol is the principal psychoactive ingredient of marijuana. The proteins encoded by this gene and the cannabinoid receptor 1 (brain) (CNR1) gene have the characteristics of a guanine nucleotide-binding protein (G-protein)-coupled receptor for cannabinoids. They inhibit adenylate cyclase activity in a dose-dependent, stereoselective, and pertussis toxin-sensitive manner. These proteins have been found to be involved in the cannabinoid-induced CNS effects (including alterations in mood and cognition) experienced by users of marijuana. The cannabinoid receptors are members of family 1 of the G-protein-coupled receptors. [provided by RefSeq, Jul 2008]

CNR2 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
CNR2	NM_001841.3 linkuse as main transcript	c.475G>T	p.Val159Phe	missense_variant	2/2	ENST00000374472.5
CNR2	XM_011540629.4 linkuse as main transcript	c.475G>T	p.Val159Phe	missense_variant	2/2
CNR2	XM_017000261.3 linkuse as main transcript	c.475G>T	p.Val159Phe	missense_variant	3/3
CNR2	XM_047444833.1 linkuse as main transcript	c.475G>T	p.Val159Phe	missense_variant	2/2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CNR2	ENST00000374472.5 linkuse as main transcript	c.475G>T	p.Val159Phe	missense_variant	2/2	1	NM_001841.3	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000401

AC:

AN:

249476

Hom.:

AF XY:

0.00000742

AC XY:

AN XY:

134748

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

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:

0.00000887

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000247

AC:

AN:

1460170

Hom.:

Cov.:

AF XY:

0.0000303

AC XY:

AN XY:

726280

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:

0.0000297

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

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

Sep 22, 2023

The c.475G>T (p.V159F) alteration is located in exon 2 (coding exon 1) of the CNR2 gene. This alteration results from a G to T substitution at nucleotide position 475, causing the valine (V) at amino acid position 159 to be replaced by a phenylalanine (F). 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

0.086

BayesDel_addAF

Benign

-0.084

BayesDel_noAF

Benign

-0.36

Cadd

Benign

Dann

Uncertain

1.0

DEOGEN2

Benign

0.24

Eigen

Benign

0.11

Eigen_PC

Benign

0.016

FATHMM_MKL

Benign

0.40

LIST_S2

Benign

0.71

M_CAP

Benign

0.062

MetaRNN

Uncertain

0.45

MetaSVM

Benign

-0.74

MutationAssessor

Uncertain

2.7

MutationTaster

Benign

0.99

D;D

PrimateAI

Benign

0.40

PROVEAN

Uncertain

-2.4

REVEL

Benign

0.27

Sift

Uncertain

0.018

Sift4G

Uncertain

0.033

Polyphen

0.72

Vest4

0.18

MutPred

0.71

Loss of MoRF binding (P = 0.1972);

MVP

0.79

ClinPred

0.38

GERP RS

2.6

Varity_R

0.29

gMVP

0.53

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over