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GeneBe

20-38918572-A-G

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_015568.4(PPP1R16B):ā€‹c.1610A>Gā€‹(p.Tyr537Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000144 in 1,393,546 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 0.0000014 ( 0 hom. )

Consequence

PPP1R16B
NM_015568.4 missense

Scores

5
12
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.09
Variant links:
Genes affected
PPP1R16B (HGNC:15850): (protein phosphatase 1 regulatory subunit 16B) The protein encoded by this gene is membrane-associated and contains five ankyrin repeats, a protein phosphatase-1-interacting domain, and a carboxy-terminal CAAX box domain. Synthesis of the encoded protein is inhibited by transforming growth factor beta-1. The protein may bind to the membrane through its CAAX box domain and may act as a signaling molecule through interaction with protein phosphatase-1. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar processing to generate mature protein. [provided by RefSeq, Sep 2015]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.745

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PPP1R16BNM_015568.4 linkuse as main transcriptc.1610A>G p.Tyr537Cys missense_variant 11/11 ENST00000299824.6
PPP1R16BNM_001172735.3 linkuse as main transcriptc.1484A>G p.Tyr495Cys missense_variant 10/10
PPP1R16BXM_011528768.4 linkuse as main transcriptc.1622A>G p.Tyr541Cys missense_variant 10/10
PPP1R16BXM_047440086.1 linkuse as main transcriptc.1013A>G p.Tyr338Cys missense_variant 7/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PPP1R16BENST00000299824.6 linkuse as main transcriptc.1610A>G p.Tyr537Cys missense_variant 11/111 NM_015568.4 P1Q96T49-1
PPP1R16BENST00000373331.2 linkuse as main transcriptc.1484A>G p.Tyr495Cys missense_variant 10/105 Q96T49-2

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
0.00000144
AC:
2
AN:
1393546
Hom.:
0
Cov.:
31
AF XY:
0.00000292
AC XY:
2
AN XY:
685396
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:
0.00
Gnomad4 OTH exome
AF:
0.0000349
GnomAD4 genome
Cov.:
33

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 submitterclinical testingAmbry GeneticsSep 23, 2023The c.1610A>G (p.Y537C) alteration is located in exon 11 (coding exon 10) of the PPP1R16B gene. This alteration results from a A to G substitution at nucleotide position 1610, causing the tyrosine (Y) at amino acid position 537 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Pathogenic
0.30
D
BayesDel_noAF
Pathogenic
0.20
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.52
D;.
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Uncertain
0.23
D
MetaRNN
Pathogenic
0.75
D;D
MetaSVM
Uncertain
0.24
D
MutationAssessor
Uncertain
2.2
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Uncertain
-2.6
D;D
REVEL
Uncertain
0.60
Sift
Uncertain
0.0070
D;T
Sift4G
Pathogenic
0.0010
D;D
Polyphen
1.0
D;.
Vest4
0.76
MutPred
0.36
Loss of phosphorylation at Y537 (P = 0.0282);.;
MVP
0.73
MPC
1.5
ClinPred
0.97
D
GERP RS
5.3
Varity_R
0.29
gMVP
0.56

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr20-37547215; COSMIC: COSV100240344; API