8-53250967-G-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_000912.5(OPRK1):​c.71C>A​(p.Pro24His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000187 in 1,606,864 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 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. P24R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

OPRK1
NM_000912.5 missense

Scores

5
13

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.20

Publications

0 publications found
Variant links:
Genes affected
OPRK1 (HGNC:8154): (opioid receptor kappa 1) This gene encodes an opioid receptor, which is a member of the 7 transmembrane-spanning G protein-coupled receptor family. It functions as a receptor for endogenous ligands, as well as a receptor for various synthetic opioids. Ligand binding results in inhibition of adenylate cyclase activity and neurotransmitter release. This opioid receptor plays a role in the perception of pain and mediating the hypolocomotor, analgesic and aversive actions of synthetic opioids. Variations in this gene have also been associated with alcohol dependence and opiate addiction. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. A recent study provided evidence for translational readthrough in this gene, and expression of an additional C-terminally extended isoform via the use of an alternative in-frame translation termination codon. [provided by RefSeq, Dec 2017]

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ACMG classification

Classification was made for transcript

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=0.28500485).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000912.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OPRK1
NM_000912.5
MANE Select
c.71C>Ap.Pro24His
missense
Exon 2 of 4NP_000903.2
OPRK1
NM_001318497.2
c.71C>Ap.Pro24His
missense
Exon 2 of 4NP_001305426.1A0A5F9ZI09
OPRK1
NM_001282904.2
c.-371C>A
5_prime_UTR
Exon 2 of 5NP_001269833.1P41145-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
OPRK1
ENST00000265572.8
TSL:1 MANE Select
c.71C>Ap.Pro24His
missense
Exon 2 of 4ENSP00000265572.3P41145-1
OPRK1
ENST00000520287.5
TSL:1
c.71C>Ap.Pro24His
missense
Exon 1 of 3ENSP00000429706.1P41145-1
OPRK1
ENST00000522508.1
TSL:1
n.71C>A
non_coding_transcript_exon
Exon 2 of 5ENSP00000428231.1E5RJI5

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152252
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000881
AC:
2
AN:
227052
AF XY:
0.00000800
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000299
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000575
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1454612
Hom.:
0
Cov.:
31
AF XY:
0.00000277
AC XY:
2
AN XY:
722978
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33210
American (AMR)
AF:
0.00
AC:
0
AN:
44160
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25856
East Asian (EAS)
AF:
0.0000253
AC:
1
AN:
39468
South Asian (SAS)
AF:
0.00
AC:
0
AN:
85590
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51908
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5734
European-Non Finnish (NFE)
AF:
9.02e-7
AC:
1
AN:
1108732
Other (OTH)
AF:
0.00
AC:
0
AN:
59954
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152252
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41468
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68050
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.091
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.30
CADD
Benign
17
DANN
Uncertain
1.0
DEOGEN2
Benign
0.12
T
Eigen
Benign
-0.050
Eigen_PC
Benign
-0.051
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Benign
0.52
T
M_CAP
Uncertain
0.25
D
MetaRNN
Benign
0.29
T
MetaSVM
Benign
-0.80
T
MutationAssessor
Benign
1.8
L
PhyloP100
3.2
PrimateAI
Uncertain
0.64
T
PROVEAN
Benign
-0.60
N
REVEL
Benign
0.094
Sift
Uncertain
0.015
D
Sift4G
Benign
0.081
T
Polyphen
0.62
P
Vest4
0.56
MutPred
0.27
Loss of catalytic residue at P23 (P = 0.016)
MVP
0.85
MPC
0.50
ClinPred
0.26
T
GERP RS
3.1
PromoterAI
0.020
Neutral
Varity_R
0.13
gMVP
0.55
Mutation Taster
=83/17
polymorphism

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

Other links and lift over

dbSNP: rs199919204; hg19: chr8-54163527; API