6-162201182-T-G

Variant names:

• chr6-162201182-T-G
• rs137853057
• NM_004562.3:c.483A>C

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PS1 PM1 PM2 PP3_Moderate

The NM_004562.3(PRKN):​c.483A>C​(p.Lys161Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in the same amino acid substitution has been previously reported as Pathogenic in ClinVar.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: PRKN NM_004562.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.410

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]

ACMG classification

Verdict is Pathogenic. Variant got 10 ACMG points.

• PS1: Transcript NM_004562.3 (PRKN) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in ClinVar as 7043
• PM1: In a zinc_finger_region RING-type 0; atypical (size 84) in uniprot entity PRKN_HUMAN there are 5 pathogenic changes around while only 1 benign (83%) in NM_004562.3
• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.909

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKN	NM_004562.3	c.483A>C	p.Lys161Asn	missense_variant	Exon 4 of 12	ENST00000366898.6	NP_004553.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRKN	ENST00000366898.6	c.483A>C	p.Lys161Asn	missense_variant	Exon 4 of 12	1	NM_004562.3	ENSP00000355865.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152114 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000943

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152114 Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1 AN XY: 74298

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.0000943

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.18	D
BayesDel_noAF	Uncertain	0.010
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.79	D;.;T
Eigen	Uncertain	0.19
Eigen_PC	Benign	0.011
FATHMM_MKL	Benign	0.61	D
LIST_S2	Uncertain	0.93	D;D;D
M_CAP	Pathogenic	0.40	D
MetaRNN	Pathogenic	0.91	D;D;D
MetaSVM	Uncertain	0.62	D
PrimateAI	Uncertain	0.60	T
PROVEAN	Pathogenic	-4.5	D;D;D
REVEL	Pathogenic	0.76
Sift	Uncertain	0.0010	D;D;D
Sift4G	Pathogenic	0.0010	D;D;D
Polyphen		1.0	D;.;.
Vest4		0.67
MutPred		0.78		Loss of methylation at K161 (P = 0.0289);Loss of methylation at K161 (P = 0.0289);Loss of methylation at K161 (P = 0.0289);
MVP		0.97
MPC		0.37
ClinPred		1.0	D
GERP RS		-5.0
Varity_R		0.93
gMVP		0.67

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

Other links and lift over

dbSNP: rs137853057; hg19: chr6-162622214;