6-32150864-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_030651.4(PRRT1):c.62A>G(p.Asn21Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000189 in 1,583,646 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PRRT1
NM_030651.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.07

Variant links:

Genes affected

PRRT1 (HGNC:13943): (proline rich transmembrane protein 1) Enables identical protein binding activity. Predicted to be involved in several processes, including long-term synaptic depression; protein localization to cell surface; and regulation of AMPA receptor activity. Predicted to act upstream of or within several processes, including learning or memory; long-term synaptic potentiation; and synapse organization. Predicted to be located in postsynaptic density membrane and synaptic vesicle membrane. Predicted to be active in glutamatergic synapse and membrane. Predicted to be integral component of postsynaptic membrane. [provided by Alliance of Genome Resources, Apr 2022]

PRRT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17652449).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PRRT1	NM_030651.4 linkuse as main transcript	c.62A>G	p.Asn21Ser	missense_variant	2/4	ENST00000211413.10
PRRT1	NM_001363780.2 linkuse as main transcript	c.100-281A>G		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRRT1	ENST00000211413.10 linkuse as main transcript	c.62A>G	p.Asn21Ser	missense_variant	2/4	1	NM_030651.4	P1	Q99946-1
PRRT1	ENST00000375150.6 linkuse as main transcript	c.20-281A>G		intron_variant		1
PRRT1	ENST00000495191.5 linkuse as main transcript	n.1060A>G		non_coding_transcript_exon_variant	1/3	2
PRRT1	ENST00000472641.1 linkuse as main transcript	n.129+945A>G		intron_variant, non_coding_transcript_variant		3

Frequencies

GnomAD3 genomes

AF:

0.00000661

AC:

AN:

151378

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000243

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:

0.00000505

AC:

AN:

197942

Hom.:

AF XY:

0.00

AC XY:

AN XY:

106946

show subpopulations

Gnomad AFR exome

AF:

0.0000850

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:

0.00000140

AC:

AN:

1432268

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

709400

show subpopulations

Gnomad4 AFR exome

AF:

0.0000300

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:

9.09e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000661

AC:

AN:

151378

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

73938

show subpopulations

Gnomad4 AFR

AF:

0.0000243

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.:

Bravo

AF:

0.00000756

ExAC

AF:

0.00000859

AC:

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 submitter

clinical testing

Ambry Genetics

Dec 06, 2021

The c.62A>G (p.N21S) alteration is located in exon 2 (coding exon 2) of the PRRT1 gene. This alteration results from a A to G substitution at nucleotide position 62, causing the asparagine (N) at amino acid position 21 to be replaced by a serine (S). 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

0.10

BayesDel_addAF

Benign

-0.031

BayesDel_noAF

Benign

-0.28

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.014

Eigen

Benign

-0.22

Eigen_PC

Benign

-0.13

FATHMM_MKL

Uncertain

0.82

LIST_S2

Benign

0.69

M_CAP

Pathogenic

0.70

MetaRNN

Benign

0.18

MetaSVM

Benign

-0.47

MutationAssessor

Benign

0.55

MutationTaster

Benign

1.0

D;D;N

PrimateAI

Pathogenic

0.84

PROVEAN

Benign

-0.85

REVEL

Benign

0.24

Sift

Pathogenic

0.0

Sift4G

Benign

0.99

Polyphen

0.46

Vest4

0.19

MVP

0.53

ClinPred

0.37

GERP RS

2.9

Varity_R

0.086

gMVP

0.045

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.10

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