rs34166584

Variant names:

• chr11-111743527-T-C
• rs34166584
• NM_002716.5:c.1403A>G
• PPP2R1B p.Tyr468Cys

Your query was ambiguous. Multiple possible variants found:

• chr11-111743527-T-C
• chr11-111743527-T-G

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BS2_Supporting

The NM_002716.5(PPP2R1B):​c.1403A>G​(p.Tyr468Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000744 in 1,612,030 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: PPP2R1B NM_002716.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.05
• Publications: 1 publications found

Genes affected

PPP2R1B (HGNC:9303): (protein phosphatase 2 scaffold subunit Abeta) This gene encodes a constant regulatory subunit of protein phosphatase 2. 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 constant regulatory subunit A serves as a scaffolding molecule to coordinate the assembly of the catalytic subunit and a variable regulatory B subunit. This gene encodes a beta isoform of the constant regulatory subunit A. Mutations in this gene have been associated with some lung and colon cancers. Alternatively spliced transcript variants have been described. [provided by RefSeq, Apr 2010]

ACMG classification

Our verdict: Likely_benign. The variant received -1 ACMG points.

• BS2: High AC in GnomAd4 at 9 AD gene. Variant has AC lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002716.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PPP2R1B	NM_002716.5	MANE Select	c.1403A>G	p.Tyr468Cys	missense	Exon 12 of 15	NP_002707.3
	PPP2R1B	NM_181699.3		c.1403A>G	p.Tyr468Cys	missense	Exon 12 of 16	NP_859050.1	P30154-2
	PPP2R1B	NM_181700.2		c.1211A>G	p.Tyr404Cys	missense	Exon 10 of 14	NP_859051.1	P30154-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PPP2R1B	ENST00000527614.6	TSL:1 MANE Select	c.1403A>G	p.Tyr468Cys	missense	Exon 12 of 15	ENSP00000437193.1	P30154-1
	PPP2R1B	ENST00000311129.9	TSL:1	c.1403A>G	p.Tyr468Cys	missense	Exon 12 of 16	ENSP00000311344.5	P30154-2
	PPP2R1B	ENST00000426998.6	TSL:2	c.1211A>G	p.Tyr404Cys	missense	Exon 10 of 14	ENSP00000410671.2	P30154-3

Frequencies

GnomAD3 genomes AF: 0.0000591 AC: 9 AN: 152202 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000217

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

GnomAD2 exomes AF: 0.0000120 AC: 3 AN: 249132 AF XY: 0.00

Gnomad AFR exome AF: 0.000185

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS 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: 0.00000206 AC: 3 AN: 1459828 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 726302

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000301 AC: 1 AN: 33262

American (AMR) AF: 0.00 AC: 0 AN: 44018

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26026

East Asian (EAS) AF: 0.00 AC: 0 AN: 39674

South Asian (SAS) AF: 0.00 AC: 0 AN: 85918

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53400

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5756

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111502

Other (OTH) AF: 0.00 AC: 0 AN: 60272

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.0000000568638), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome AF: 0.0000591 AC: 9 AN: 152202 Hom.: 0 Cov.: 32 AF XY: 0.0000403 AC XY: 3 AN XY: 74358

African (AFR) AF: 0.000217 AC: 9 AN: 41444

American (AMR) AF: 0.00 AC: 0 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5204

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68034

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.000141 Hom.: 0

Bravo AF: 0.0000718

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.36
BayesDel_addAF	Benign	-0.063	T
BayesDel_noAF	Benign	-0.090
CADD	Uncertain	23
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.55	D
Eigen	Uncertain	0.27
Eigen_PC	Uncertain	0.37
FATHMM_MKL	Uncertain	0.97	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.026	D
MetaRNN	Uncertain	0.62	D
MetaSVM	Benign	-0.98	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		6.0
PrimateAI	Uncertain	0.78	T
PROVEAN	Pathogenic	-7.2	D
REVEL	Benign	0.25
Sift	Uncertain	0.012	D
Sift4G	Uncertain	0.027	D
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.53
gMVP		0.59
Mutation Taster		=71/29	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs34166584; hg19: chr11-111614251;