rs765285598

Positions:

chr16-29813851-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM5BP4BP6_ModerateBS2_Supporting

The NM_145239.3(PRRT2):c.797G>A(p.Arg266Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,608 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict 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. R266W) has been classified as Pathogenic.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

PRRT2
NM_145239.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.362

Variant links:

Genes affected

PRRT2 (HGNC:30500): (proline rich transmembrane protein 2) This gene encodes a transmembrane protein containing a proline-rich domain in its N-terminal half. Studies in mice suggest that it is predominantly expressed in brain and spinal cord in embryonic and postnatal stages. Mutations in this gene are associated with episodic kinesigenic dyskinesia-1. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012]

PRRT2 links:

MVP-DT (HGNC:56029): (MVP divergent transcript)

MVP-DT links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM5

Other missense variant is known to change same aminoacid residue: Variant chr16-29813850-C-T is described in Lovd as [Pathogenic].

BP4

Computational evidence support a benign effect (MetaRNN=0.36094373).

BP6

Variant 16-29813851-G-A is Benign according to our data. Variant chr16-29813851-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 573449.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAdExome4 at 22 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PRRT2	NM_145239.3 linkuse as main transcript	c.797G>A	p.Arg266Gln	missense_variant	2/4	ENST00000358758.12	NP_660282.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PRRT2	ENST00000358758.12 linkuse as main transcript	c.797G>A	p.Arg266Gln	missense_variant	2/4	1	NM_145239.3	ENSP00000351608	P1	Q7Z6L0-1
MVP-DT	ENST00000569039.5 linkuse as main transcript	n.246-3678C>T		intron_variant, non_coding_transcript_variant		2

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152122

Hom.:

Cov.:

show subpopulations

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:

0.000188

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250990

Hom.:

AF XY:

0.00000737

AC XY:

AN XY:

135658

show subpopulations

Gnomad AFR exome

AF:

0.0000615

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:

0.0000462

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1461486

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727056

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000101

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000135

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152122

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74310

show subpopulations

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:

0.000188

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000227

ExAC

AF:

0.0000165

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Episodic kinesigenic dyskinesia

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 19, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.28

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.30

T;.;.;.;T;T;T

Eigen

Benign

0.0036

Eigen_PC

Benign

-0.077

FATHMM_MKL

Benign

0.19

LIST_S2

Uncertain

0.86

.;.;D;D;.;.;D

M_CAP

Uncertain

0.11

MetaRNN

Benign

0.36

T;T;T;T;T;T;T

MetaSVM

Uncertain

-0.26

MutationAssessor

Benign

1.8

L;L;L;L;L;L;L

MutationTaster

Benign

0.97

N;N;N

PrimateAI

Benign

0.46

PROVEAN

Benign

-1.5

N;.;N;N;.;.;.

REVEL

Benign

0.26

Sift

Uncertain

0.013

D;.;D;D;.;.;.

Sift4G

Benign

0.19

T;.;T;T;.;T;.

Polyphen

1.0

D;D;D;D;D;D;D

Vest4

0.15

MutPred

0.39

Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);

MVP

0.88

MPC

0.45

ClinPred

0.15

GERP RS

2.9

Varity_R

0.15

gMVP

0.73

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