rs3881953

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_002481.4(PPP1R12B):​c.2507G>A​(p.Arg836Lys) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000007 in 1,428,064 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin UniProt.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 7.0e-7 ( 0 hom. )

Consequence

PPP1R12B
NM_002481.4 missense, splice_region

Scores

5
12
Splicing: ADA: 1.000
2

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.82
Variant links:
Genes affected
PPP1R12B (HGNC:7619): (protein phosphatase 1 regulatory subunit 12B) Myosin phosphatase is a protein complex comprised of three subunits: a catalytic subunit (PP1c-delta, protein phosphatase 1, catalytic subunit delta), a large regulatory subunit (MYPT, myosin phosphatase target) and small regulatory subunit (sm-M20). Two isoforms of MYPT have been isolated--MYPT1 and MYPT2, the first of which is widely expressed, and the second of which may be specific to heart, skeletal muscle, and brain. Each of the MYPT isoforms functions to bind PP1c-delta and increase phosphatase activity. This locus encodes both MYTP2 and M20. Alternatively spliced transcript variants encoding different isoforms have been identified. Related pseudogenes have been defined on the Y chromosome. [provided by RefSeq, Oct 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PPP1R12BNM_002481.4 linkuse as main transcriptc.2507G>A p.Arg836Lys missense_variant, splice_region_variant 19/24 ENST00000608999.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PPP1R12BENST00000608999.6 linkuse as main transcriptc.2507G>A p.Arg836Lys missense_variant, splice_region_variant 19/241 NM_002481.4 A2O60237-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000422
AC:
1
AN:
237018
Hom.:
0
AF XY:
0.00000780
AC XY:
1
AN XY:
128180
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
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:
0.00000916
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
7.00e-7
AC:
1
AN:
1428064
Hom.:
0
Cov.:
27
AF XY:
0.00000141
AC XY:
1
AN XY:
711266
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:
9.18e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00470
Hom.:
18
ExAC
AF:
0.00000824
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.23
BayesDel_addAF
Benign
0.0064
T
BayesDel_noAF
Benign
-0.23
CADD
Pathogenic
35
DANN
Uncertain
0.99
DEOGEN2
Benign
0.042
.;T;.;.;T
Eigen
Benign
0.18
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Uncertain
0.95
D
LIST_S2
Benign
0.80
T;T;T;T;T
M_CAP
Benign
0.0070
T
MetaRNN
Benign
0.17
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.1
.;M;.;.;.
MutationTaster
Benign
1.0
D;D;D;D
PrimateAI
Uncertain
0.61
T
REVEL
Benign
0.059
Sift4G
Benign
0.086
T;T;T;T;T
Polyphen
0.32, 0.0060
.;B;B;.;.
Vest4
0.35
MutPred
0.26
.;Gain of ubiquitination at R836 (P = 0.0054);.;.;.;
MVP
0.59
MPC
0.37
ClinPred
0.76
D
GERP RS
5.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.25
gMVP
0.15

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.97
SpliceAI score (max)
0.77
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.77
Position offset: 0

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: rs3881953; hg19: chr1-202528021; API