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chr3-136002243-A-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_002718.5(PPP2R3A):ā€‹c.745A>Gā€‹(p.Ile249Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00798 in 1,613,918 control chromosomes in the GnomAD database, including 64 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…).

Frequency

Genomes: š‘“ 0.0055 ( 3 hom., cov: 32)
Exomes š‘“: 0.0082 ( 61 hom. )

Consequence

PPP2R3A
NM_002718.5 missense

Scores

4
3
11

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 8.94
Variant links:
Genes affected
PPP2R3A (HGNC:9307): (protein phosphatase 2 regulatory subunit B''alpha) This gene encodes one of the regulatory subunits of the protein phosphatase 2. Protein phosphatase 2 (formerly named type 2A) is one of the four major Ser/Thr phosphatases and is implicated in the negative control of cell growth and division. Protein phosphatase 2 holoenzymes are heterotrimeric proteins composed of a structural subunit A, a catalytic subunit C, and a regulatory subunit B. The regulatory subunit is encoded by a diverse set of genes that have been grouped into the B/PR55, B'/PR61, and B''/PR72 families. These different regulatory subunits confer distinct enzymatic specificities and intracellular localizations to the holozenzyme. The product of this gene belongs to the B'' family. The B'' family has been further divided into subfamilies. The product of this gene belongs to the alpha subfamily of regulatory subunit B''. Alternative splicing results in multiple transcript variants encoding different isoforms.[provided by RefSeq, Jun 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008845568).
BP6
Variant 3-136002243-A-G is Benign according to our data. Variant chr3-136002243-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 3044322.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAd4 at 3 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PPP2R3ANM_002718.5 linkuse as main transcriptc.745A>G p.Ile249Val missense_variant 2/14 ENST00000264977.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PPP2R3AENST00000264977.8 linkuse as main transcriptc.745A>G p.Ile249Val missense_variant 2/141 NM_002718.5 P3Q06190-1
PPP2R3AENST00000490467.5 linkuse as main transcriptc.-213-24589A>G intron_variant 2 Q06190-3

Frequencies

GnomAD3 genomes
AF:
0.00547
AC:
832
AN:
152236
Hom.:
3
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00157
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00157
Gnomad ASJ
AF:
0.00346
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00103
Gnomad FIN
AF:
0.00622
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00951
Gnomad OTH
AF:
0.00621
GnomAD3 exomes
AF:
0.00495
AC:
1229
AN:
248292
Hom.:
9
AF XY:
0.00490
AC XY:
659
AN XY:
134548
show subpopulations
Gnomad AFR exome
AF:
0.00108
Gnomad AMR exome
AF:
0.00192
Gnomad ASJ exome
AF:
0.00210
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.000393
Gnomad FIN exome
AF:
0.00610
Gnomad NFE exome
AF:
0.00853
Gnomad OTH exome
AF:
0.00447
GnomAD4 exome
AF:
0.00824
AC:
12049
AN:
1461564
Hom.:
61
Cov.:
37
AF XY:
0.00791
AC XY:
5754
AN XY:
727060
show subpopulations
Gnomad4 AFR exome
AF:
0.00105
Gnomad4 AMR exome
AF:
0.00179
Gnomad4 ASJ exome
AF:
0.00272
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.000499
Gnomad4 FIN exome
AF:
0.00646
Gnomad4 NFE exome
AF:
0.00998
Gnomad4 OTH exome
AF:
0.00626
GnomAD4 genome
AF:
0.00546
AC:
832
AN:
152354
Hom.:
3
Cov.:
32
AF XY:
0.00482
AC XY:
359
AN XY:
74492
show subpopulations
Gnomad4 AFR
AF:
0.00156
Gnomad4 AMR
AF:
0.00157
Gnomad4 ASJ
AF:
0.00346
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00104
Gnomad4 FIN
AF:
0.00622
Gnomad4 NFE
AF:
0.00951
Gnomad4 OTH
AF:
0.00615
Alfa
AF:
0.00793
Hom.:
6
Bravo
AF:
0.00493
TwinsUK
AF:
0.0135
AC:
50
ALSPAC
AF:
0.0125
AC:
48
ESP6500AA
AF:
0.00250
AC:
11
ESP6500EA
AF:
0.0107
AC:
92
ExAC
AF:
0.00511
AC:
621
Asia WGS
AF:
0.000577
AC:
2
AN:
3478
EpiCase
AF:
0.00660
EpiControl
AF:
0.00747

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

PPP2R3A-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesFeb 28, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
-0.48
T
BayesDel_noAF
Benign
-0.45
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.10
T
Eigen
Pathogenic
0.77
Eigen_PC
Pathogenic
0.75
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D
MetaRNN
Benign
0.0088
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
2.0
M
MutationTaster
Benign
0.98
D;D
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-0.25
N
REVEL
Benign
0.17
Sift
Pathogenic
0.0
D
Sift4G
Benign
0.069
T
Polyphen
0.99
D
Vest4
0.45
MVP
0.32
MPC
0.31
ClinPred
0.043
T
GERP RS
5.2
Varity_R
0.31
gMVP
0.30

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.

Other links and lift over

dbSNP: rs115951794; hg19: chr3-135721085; API