rs751936797

Variant names:

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_147180.4(PPP3R2):c.155A>C(p.Asn52Thr) variant causes a missense change. The variant allele was found at a frequency of 0.000165 in 1,613,716 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

PPP3R2
NM_147180.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.13

Variant links:

Genes affected

PPP3R2 (HGNC:9318): (protein phosphatase 3 regulatory subunit B, beta) Predicted to enable calcium ion binding activity and calcium-dependent protein serine/threonine phosphatase regulator activity. Predicted to be involved in regulation of catalytic activity. Predicted to act upstream of or within penetration of zona pellucida. Predicted to be located in sperm mitochondrial sheath. Predicted to be part of calcineurin complex. [provided by Alliance of Genome Resources, Apr 2022]

PPP3R2 links:

GRIN3A (HGNC:16767): (glutamate ionotropic receptor NMDA type subunit 3A) This gene encodes a subunit of the N-methyl-D-aspartate (NMDA) receptors, which belong to the superfamily of glutamate-regulated ion channels, and function in physiological and pathological processes in the central nervous system. This subunit shows greater than 90% identity to the corresponding subunit in rat. Studies in the knockout mouse deficient in this subunit suggest that this gene may be involved in the development of synaptic elements by modulating NMDA receptor activity. [provided by RefSeq, Jul 2008]

GRIN3A links:

LOC105376186 (HGNC:):

LOC105376186 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PPP3R2	NM_147180.4 link	c.155A>C	p.Asn52Thr	missense_variant	Exon 1 of 1	ENST00000374806.2	NP_671709.2	Q96LZ3
GRIN3A	NM_133445.3 link	c.2767-15407A>C		intron_variant	Intron 6 of 8	ENST00000361820.6	NP_597702.2	Q8TCU5
LOC105376186	XR_001746863.2 link	n.-207T>G		upstream_gene_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PPP3R2	ENST00000374806.2 link	c.155A>C	p.Asn52Thr	missense_variant	Exon 1 of 1	6	NM_147180.4	ENSP00000363939.2	Q96LZ3
GRIN3A	ENST00000361820.6 link	c.2767-15407A>C		intron_variant	Intron 6 of 8	1	NM_133445.3	ENSP00000355155.3	Q8TCU5
PPP3R2	ENST00000636434.1 link	c.-37+78A>C		intron_variant	Intron 1 of 1	1		ENSP00000490051.1	A0A1B0GUC7

Frequencies

GnomAD3 genomes

AF:

0.0000526

AC:

AN:

151966

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000484

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:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251274

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135832

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:

0.00

Gnomad NFE exome

AF:

0.0000703

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000177

AC:

258

AN:

1461750

Hom.:

Cov.:

AF XY:

0.000158

AC XY:

115

AN XY:

727176

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000219

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.0000526

AC:

AN:

151966

Hom.:

Cov.:

AF XY:

0.0000674

AC XY:

AN XY:

74216

show subpopulations

Gnomad4 AFR

AF:

0.0000484

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:

0.0000882

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000852

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000330

AC:

EpiCase

AF:

0.000109

EpiControl

AF:

0.000296

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Oct 12, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.164A>C (p.N55T) alteration is located in exon 1 (coding exon 1) of the PPP3R2 gene. This alteration results from a A to C substitution at nucleotide position 164, causing the asparagine (N) at amino acid position 55 to be replaced by a threonine (T). 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

Pathogenic

0.70

BayesDel_addAF

Benign

-0.16

BayesDel_noAF

Benign

-0.28

CADD

Uncertain

DANN

Uncertain

0.99

Eigen

Uncertain

0.40

Eigen_PC

Uncertain

0.31

FATHMM_MKL

Uncertain

0.97

LIST_S2

Pathogenic

0.99

M_CAP

Benign

0.026

MetaRNN

Uncertain

0.72

MetaSVM

Uncertain

-0.12

PrimateAI

Benign

0.43

PROVEAN

Pathogenic

-5.6

REVEL

Uncertain

0.46

Sift

Uncertain

0.012

Sift4G

Uncertain

0.041

Vest4

0.57

MVP

0.77

MPC

0.66

ClinPred

0.58

GERP RS

3.9

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