Variant 2-28752155-C-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2PP2BP4_Moderate

The NM_002709.3(PPP1CB):c.31C>G(p.Leu11Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,396,272 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Synonymous variant affecting the same amino acid position (i.e. L11L) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 30)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PPP1CB
NM_002709.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1B:1

Conservation

PhyloP100: 2.25

Variant links:

Genes affected

PPP1CB (HGNC:9282): (protein phosphatase 1 catalytic subunit beta) The protein encoded by this gene is one of the three catalytic subunits of protein phosphatase 1 (PP1). PP1 is a serine/threonine specific protein phosphatase known to be involved in the regulation of a variety of cellular processes, such as cell division, glycogen metabolism, muscle contractility, protein synthesis, and HIV-1 viral transcription. Mouse studies suggest that PP1 functions as a suppressor of learning and memory. Two alternatively spliced transcript variants encoding distinct isoforms have been observed. [provided by RefSeq, Jul 2008]

PPP1CB links:

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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;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PPP1CB. . Gene score misZ 4.3319 (greater than the threshold 3.09). Trascript score misZ 4.7349 (greater than threshold 3.09). GenCC has associacion of gene with Noonan syndrome-like disorder with loose anagen hair 2, Noonan syndrome-like disorder with loose anagen hair.

BP4

Computational evidence support a benign effect (MetaRNN=0.18366593).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PPP1CB	NM_002709.3 linkuse as main transcript	c.31C>G	p.Leu11Val	missense_variant	1/8	ENST00000395366.3
PPP1CB	NM_206876.2 linkuse as main transcript	c.31C>G	p.Leu11Val	missense_variant	2/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PPP1CB	ENST00000395366.3 linkuse as main transcript	c.31C>G	p.Leu11Val	missense_variant	1/8	1	NM_002709.3	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000143

AC:

AN:

1396272

Hom.:

Cov.:

AF XY:

0.00000290

AC XY:

AN XY:

688684

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000186

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Jul 09, 2021

Not observed in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Noonan syndrome

Benign:1

Likely benign, no assertion criteria provided

clinical testing

Service de Génétique Moléculaire, Hôpital Robert Debré

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.42

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.0070

.;T;T;T;T

Eigen

Benign

-0.10

Eigen_PC

Benign

0.063

FATHMM_MKL

Benign

0.34

LIST_S2

Uncertain

0.94

D;D;D;.;.

M_CAP

Benign

0.062

MetaRNN

Benign

0.18

T;T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.63

.;.;N;N;N

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Pathogenic

0.91

PROVEAN

Benign

0.42

N;N;N;N;N

REVEL

Benign

0.079

Sift

Benign

0.18

T;T;T;T;T

Sift4G

Benign

0.22

T;T;T;T;T

Polyphen

0.0

.;.;B;B;B

Vest4

0.25, 0.25, 0.24

MutPred

0.46

Gain of MoRF binding (P = 0.1986);Gain of MoRF binding (P = 0.1986);Gain of MoRF binding (P = 0.1986);Gain of MoRF binding (P = 0.1986);Gain of MoRF binding (P = 0.1986);

MVP

0.44

MPC

1.7

ClinPred

0.53

GERP RS

4.7

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

3.9

Varity_R

0.19

gMVP

0.95

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