8-26366341-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_002717.4(PPP2R2A):​c.999C>T​(p.Leu333=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.041 in 1,603,544 control chromosomes in the GnomAD database, including 1,538 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.031 ( 85 hom., cov: 32)
Exomes 𝑓: 0.042 ( 1453 hom. )

Consequence

PPP2R2A
NM_002717.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.901
Variant links:
Genes affected
PPP2R2A (HGNC:9304): (protein phosphatase 2 regulatory subunit Balpha) The product of this gene belongs to the phosphatase 2 regulatory subunit B family. Protein phosphatase 2 is one of the four major Ser/Thr phosphatases, and it is implicated in the negative control of cell growth and division. It consists of a common heteromeric core enzyme, which is composed of a catalytic subunit and a constant regulatory subunit, that associates with a variety of regulatory subunits. The B regulatory subunit might modulate substrate selectivity and catalytic activity. This gene encodes an alpha isoform of the regulatory subunit B55 subfamily. Alternatively spliced transcript variants have been described. [provided by RefSeq, Apr 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.38).
BP6
Variant 8-26366341-C-T is Benign according to our data. Variant chr8-26366341-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1679069.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=0.901 with no splicing effect.
BA1
GnomAdExome4 highest subpopulation (MID) allele frequency at 95% confidence interval = 0.0589 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PPP2R2ANM_002717.4 linkuse as main transcriptc.999C>T p.Leu333= synonymous_variant 9/10 ENST00000380737.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PPP2R2AENST00000380737.8 linkuse as main transcriptc.999C>T p.Leu333= synonymous_variant 9/101 NM_002717.4 P1P63151-1

Frequencies

GnomAD3 genomes
AF:
0.0307
AC:
4667
AN:
152004
Hom.:
84
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00862
Gnomad AMI
AF:
0.103
Gnomad AMR
AF:
0.0341
Gnomad ASJ
AF:
0.0317
Gnomad EAS
AF:
0.00346
Gnomad SAS
AF:
0.0305
Gnomad FIN
AF:
0.0254
Gnomad MID
AF:
0.0696
Gnomad NFE
AF:
0.0449
Gnomad OTH
AF:
0.0378
GnomAD3 exomes
AF:
0.0338
AC:
8234
AN:
243542
Hom.:
192
AF XY:
0.0349
AC XY:
4609
AN XY:
131934
show subpopulations
Gnomad AFR exome
AF:
0.00775
Gnomad AMR exome
AF:
0.0375
Gnomad ASJ exome
AF:
0.0339
Gnomad EAS exome
AF:
0.00186
Gnomad SAS exome
AF:
0.0333
Gnomad FIN exome
AF:
0.0266
Gnomad NFE exome
AF:
0.0426
Gnomad OTH exome
AF:
0.0417
GnomAD4 exome
AF:
0.0421
AC:
61141
AN:
1451422
Hom.:
1453
Cov.:
30
AF XY:
0.0420
AC XY:
30293
AN XY:
721714
show subpopulations
Gnomad4 AFR exome
AF:
0.00705
Gnomad4 AMR exome
AF:
0.0399
Gnomad4 ASJ exome
AF:
0.0346
Gnomad4 EAS exome
AF:
0.00153
Gnomad4 SAS exome
AF:
0.0334
Gnomad4 FIN exome
AF:
0.0258
Gnomad4 NFE exome
AF:
0.0462
Gnomad4 OTH exome
AF:
0.0423
GnomAD4 genome
AF:
0.0307
AC:
4671
AN:
152122
Hom.:
85
Cov.:
32
AF XY:
0.0303
AC XY:
2252
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.00860
Gnomad4 AMR
AF:
0.0340
Gnomad4 ASJ
AF:
0.0317
Gnomad4 EAS
AF:
0.00367
Gnomad4 SAS
AF:
0.0307
Gnomad4 FIN
AF:
0.0254
Gnomad4 NFE
AF:
0.0449
Gnomad4 OTH
AF:
0.0402
Alfa
AF:
0.0407
Hom.:
78
Bravo
AF:
0.0320
Asia WGS
AF:
0.0210
AC:
73
AN:
3476

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Hereditary breast ovarian cancer syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingNational Health Laboratory Service, Universitas Academic Hospital and University of the Free StateApr 19, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.38
CADD
Benign
4.3
DANN
Benign
0.69

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: rs34109536; hg19: chr8-26223857; API