10-91630556-C-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_005398.7(PPP1R3C):​c.325G>T​(p.Ala109Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000923 in 1,614,062 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: 𝑓 0.00056 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000044 ( 0 hom. )

Consequence

PPP1R3C
NM_005398.7 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.201
Variant links:
Genes affected
PPP1R3C (HGNC:9293): (protein phosphatase 1 regulatory subunit 3C) This gene encodes a carbohydrate binding protein that is a subunit of the protein phosphatase 1 (PP1) complex. PP1 catalyzes reversible protein phosphorylation, which is important in a wide range of cellular activities. The encoded protein affects glycogen biosynthesis by activating glycogen synthase and limiting glycogen breakdown by reducing glycogen phosphorylase activity. DNA hypermethylation of this gene has been found in colorectal cancer patients. The encoded protein also interacts with the laforin protein, which is a protein tyrosine phosphatase implicated in Lafora disease. [provided by RefSeq, Sep 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0070934296).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PPP1R3CNM_005398.7 linkuse as main transcriptc.325G>T p.Ala109Ser missense_variant 2/2 ENST00000238994.6 NP_005389.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PPP1R3CENST00000238994.6 linkuse as main transcriptc.325G>T p.Ala109Ser missense_variant 2/21 NM_005398.7 ENSP00000238994 P1

Frequencies

GnomAD3 genomes
AF:
0.000539
AC:
82
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00193
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000123
AC:
31
AN:
251432
Hom.:
0
AF XY:
0.0000957
AC XY:
13
AN XY:
135894
show subpopulations
Gnomad AFR exome
AF:
0.00166
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
0.0000438
AC:
64
AN:
1461800
Hom.:
0
Cov.:
31
AF XY:
0.0000358
AC XY:
26
AN XY:
727190
show subpopulations
Gnomad4 AFR exome
AF:
0.00149
Gnomad4 AMR exome
AF:
0.0000894
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:
0.00000360
Gnomad4 OTH exome
AF:
0.0000662
GnomAD4 genome
AF:
0.000558
AC:
85
AN:
152262
Hom.:
0
Cov.:
32
AF XY:
0.000631
AC XY:
47
AN XY:
74458
show subpopulations
Gnomad4 AFR
AF:
0.00200
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000942
Hom.:
0
Bravo
AF:
0.000521
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00159
AC:
7
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000140
AC:
17
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 GeneticsDec 16, 2023The c.325G>T (p.A109S) alteration is located in exon 1 (coding exon 1) of the PPP1R3C gene. This alteration results from a G to T substitution at nucleotide position 325, causing the alanine (A) at amino acid position 109 to be replaced by a serine (S). 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
0.074
BayesDel_addAF
Benign
-0.66
T
BayesDel_noAF
Benign
-0.73
CADD
Benign
10
DANN
Benign
0.51
DEOGEN2
Benign
0.075
T
Eigen
Benign
-0.82
Eigen_PC
Benign
-0.69
FATHMM_MKL
Benign
0.080
N
LIST_S2
Benign
0.70
T
M_CAP
Benign
0.0055
T
MetaRNN
Benign
0.0071
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.67
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-0.19
N
REVEL
Benign
0.11
Sift
Benign
0.48
T
Sift4G
Benign
0.30
T
Polyphen
0.0
B
Vest4
0.032
MVP
0.39
MPC
0.068
ClinPred
0.0097
T
GERP RS
3.9
Varity_R
0.065
gMVP
0.18

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: rs7089948; hg19: chr10-93390313; API