3-136001661-C-G
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Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4
The ENST00000264977.8(PPP2R3A):āc.163C>Gā(p.Leu55Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,614,014 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā ).
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 32)
Exomes š: 0.0000096 ( 0 hom. )
Consequence
PPP2R3A
ENST00000264977.8 missense
ENST00000264977.8 missense
Scores
4
3
12
Clinical Significance
Conservation
PhyloP100: 4.61
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 Uncertain_significance. Variant got 1 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.37802494).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
PPP2R3A | NM_002718.5 | c.163C>G | p.Leu55Val | missense_variant | 2/14 | ENST00000264977.8 | NP_002709.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
PPP2R3A | ENST00000264977.8 | c.163C>G | p.Leu55Val | missense_variant | 2/14 | 1 | NM_002718.5 | ENSP00000264977 | P3 | |
PPP2R3A | ENST00000490467.5 | c.-213-25171C>G | intron_variant | 2 | ENSP00000419344 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152172Hom.: 0 Cov.: 32
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GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251248Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135780
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GnomAD4 exome AF: 0.00000958 AC: 14AN: 1461842Hom.: 0 Cov.: 31 AF XY: 0.00000688 AC XY: 5AN XY: 727212
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152172Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74334
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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 | Mar 31, 2022 | The c.163C>G (p.L55V) alteration is located in exon 2 (coding exon 1) of the PPP2R3A gene. This alteration results from a C to G substitution at nucleotide position 163, causing the leucine (L) at amino acid position 55 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Benign
T
BayesDel_noAF
Benign
CADD
Uncertain
DANN
Uncertain
DEOGEN2
Benign
T
Eigen
Pathogenic
Eigen_PC
Pathogenic
FATHMM_MKL
Pathogenic
D
LIST_S2
Benign
T
M_CAP
Benign
T
MetaRNN
Benign
T
MetaSVM
Benign
T
MutationAssessor
Uncertain
M
MutationTaster
Benign
D;D
PrimateAI
Uncertain
T
PROVEAN
Benign
N
REVEL
Benign
Sift
Pathogenic
D
Sift4G
Benign
T
Polyphen
D
Vest4
MutPred
Gain of sheet (P = 0.0061);
MVP
MPC
ClinPred
D
GERP RS
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gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at