chr6-162443345-C-T

Variant summary

Our verdict is Benign. Variant got -18 ACMG points: 2P and 20B. PM5BP4_StrongBP6_Very_StrongBS1BS2

The NM_004562.3(PRKN):​c.136G>A​(p.Ala46Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00107 in 1,612,992 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A46S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0057 ( 5 hom., cov: 32)
Exomes 𝑓: 0.00059 ( 6 hom. )

Consequence

PRKN
NM_004562.3 missense

Scores

7
7
3

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 4.34
Variant links:
Genes affected
PRKN (HGNC:8607): (parkin RBR E3 ubiquitin protein ligase) The precise function of this gene is unknown; however, the encoded protein is a component of a multiprotein E3 ubiquitin ligase complex that mediates the targeting of substrate proteins for proteasomal degradation. Mutations in this gene are known to cause Parkinson disease and autosomal recessive juvenile Parkinson disease. Alternative splicing of this gene produces multiple transcript variants encoding distinct isoforms. Additional splice variants of this gene have been described but currently lack transcript support. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -18 ACMG points.

PM5
Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.
BP4
Computational evidence support a benign effect (MetaRNN=0.021367908).
BP6
Variant 6-162443345-C-T is Benign according to our data. Variant chr6-162443345-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 468586.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-162443345-C-T is described in Lovd as [Benign].
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00573 (872/152212) while in subpopulation AFR AF= 0.0203 (844/41542). AF 95% confidence interval is 0.0192. There are 5 homozygotes in gnomad4. There are 403 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRKNNM_004562.3 linkc.136G>A p.Ala46Thr missense_variant Exon 2 of 12 ENST00000366898.6 NP_004553.2 O60260-1X5DR79

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRKNENST00000366898.6 linkc.136G>A p.Ala46Thr missense_variant Exon 2 of 12 1 NM_004562.3 ENSP00000355865.1 O60260-1

Frequencies

GnomAD3 genomes
AF:
0.00573
AC:
872
AN:
152094
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0204
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00124
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000415
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.00152
AC:
381
AN:
251364
Hom.:
4
AF XY:
0.00105
AC XY:
142
AN XY:
135848
show subpopulations
Gnomad AFR exome
AF:
0.0210
Gnomad AMR exome
AF:
0.000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000704
Gnomad OTH exome
AF:
0.000978
GnomAD4 exome
AF:
0.000589
AC:
860
AN:
1460780
Hom.:
6
Cov.:
33
AF XY:
0.000515
AC XY:
374
AN XY:
726688
show subpopulations
Gnomad4 AFR exome
AF:
0.0213
Gnomad4 AMR exome
AF:
0.000805
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000244
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.00123
GnomAD4 genome
AF:
0.00573
AC:
872
AN:
152212
Hom.:
5
Cov.:
32
AF XY:
0.00542
AC XY:
403
AN XY:
74414
show subpopulations
Gnomad4 AFR
AF:
0.0203
Gnomad4 AMR
AF:
0.00124
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000415
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.00252
Hom.:
4
Bravo
AF:
0.00602
ESP6500AA
AF:
0.0207
AC:
91
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00183
AC:
222
Asia WGS
AF:
0.00173
AC:
6
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.000119

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Oct 01, 2023
CeGaT Center for Human Genetics Tuebingen
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PRKN: PM5, BS1, BS2 -

Dec 13, 2019
Athena Diagnostics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Jan 17, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Breakthrough Genomics, Breakthrough Genomics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: not provided

- -

Lung cancer;C0919267:Ovarian neoplasm;C1868675:Autosomal recessive juvenile Parkinson disease 2 Benign:1
Oct 08, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Autosomal recessive juvenile Parkinson disease 2 Benign:1
Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to rule this variant out of causing disease. Therefore, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.79
BayesDel_addAF
Benign
-0.047
T
BayesDel_noAF
Pathogenic
0.18
CADD
Pathogenic
29
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.65
D;.;.;T
Eigen
Pathogenic
0.80
Eigen_PC
Pathogenic
0.78
FATHMM_MKL
Uncertain
0.82
D
LIST_S2
Uncertain
0.91
D;D;D;D
MetaRNN
Benign
0.021
T;T;T;T
MetaSVM
Uncertain
0.10
D
PrimateAI
Uncertain
0.54
T
PROVEAN
Uncertain
-3.2
D;D;N;D
REVEL
Pathogenic
0.67
Sift
Pathogenic
0.0
D;D;T;D
Sift4G
Uncertain
0.0020
D;D;D;D
Polyphen
1.0
D;.;.;.
Vest4
0.88
MVP
0.96
MPC
0.36
ClinPred
0.027
T
GERP RS
5.6
Varity_R
0.73
gMVP
0.59

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs75860381; hg19: chr6-162864377; COSMIC: COSV99080719; API