8-56445902-G-T

Variant summary

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

The NM_001135690.3(PENK):​c.52C>A​(p.Leu18Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000248 in 1,612,490 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 34)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PENK
NM_001135690.3 missense

Scores

2
8
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.980
Variant links:
Genes affected
PENK (HGNC:8831): (proenkephalin) This gene encodes a preproprotein that is proteolytically processed to generate multiple protein products. These products include the pentapeptide opioids Met-enkephalin and Leu-enkephalin, which are stored in synaptic vesicles, then released into the synapse where they bind to mu- and delta-opioid receptors to modulate the perception of pain. Other non-opioid cleavage products may function in distinct biological activities. [provided by RefSeq, Jul 2015]
PENK-AS1 (HGNC:55519): (PENK antisense RNA 1)

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=0.34947887).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PENKNM_001135690.3 linkuse as main transcriptc.52C>A p.Leu18Ile missense_variant 3/4 ENST00000451791.7
PENK-AS1NR_125813.1 linkuse as main transcriptn.96G>T non_coding_transcript_exon_variant 1/4

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PENKENST00000451791.7 linkuse as main transcriptc.52C>A p.Leu18Ile missense_variant 3/41 NM_001135690.3 P1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152260
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000723
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
GnomAD3 exomes
AF:
0.00000809
AC:
2
AN:
247346
Hom.:
0
AF XY:
0.00000743
AC XY:
1
AN XY:
134634
show subpopulations
Gnomad AFR exome
AF:
0.000128
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460230
Hom.:
0
Cov.:
32
AF XY:
0.00000138
AC XY:
1
AN XY:
726436
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152260
Hom.:
0
Cov.:
34
AF XY:
0.0000269
AC XY:
2
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.0000723
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000332
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000165
AC:
2

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 GeneticsNov 30, 2022The c.52C>A (p.L18I) alteration is located in exon 1 (coding exon 1) of the PENK gene. This alteration results from a C to A substitution at nucleotide position 52, causing the leucine (L) at amino acid position 18 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
0.075
BayesDel_addAF
Benign
-0.081
T
BayesDel_noAF
Benign
-0.17
CADD
Benign
20
DANN
Uncertain
0.98
DEOGEN2
Benign
0.40
.;T;T;T;.;.
Eigen
Uncertain
0.28
Eigen_PC
Uncertain
0.26
FATHMM_MKL
Benign
0.60
D
LIST_S2
Benign
0.37
T;.;T;T;T;T
M_CAP
Uncertain
0.19
D
MetaRNN
Benign
0.35
T;T;T;T;T;T
MetaSVM
Uncertain
-0.0064
T
MutationAssessor
Pathogenic
3.2
.;M;M;.;.;.
MutationTaster
Benign
0.94
D;D;D;D
PrimateAI
Uncertain
0.50
T
PROVEAN
Benign
-1.6
N;N;N;N;N;N
REVEL
Uncertain
0.41
Sift
Uncertain
0.024
D;T;T;D;D;D
Sift4G
Pathogenic
0.0
D;T;T;.;D;D
Polyphen
0.82, 1.0
.;P;P;.;.;D
Vest4
0.12, 0.36, 0.39, 0.14
MVP
0.58
MPC
1.1
ClinPred
0.41
T
GERP RS
3.6
Varity_R
0.087
gMVP
0.28

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.

Other links and lift over

dbSNP: rs762384685; hg19: chr8-57358461; API