7-94910413-G-A

Variant summary

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

The NM_001166160.2(PPP1R9A):​c.300G>A​(p.Met100Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,614,168 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 (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

PPP1R9A
NM_001166160.2 missense

Scores

1
18

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.11
Variant links:
Genes affected
PPP1R9A (HGNC:14946): (protein phosphatase 1 regulatory subunit 9A) This gene is imprinted, and located in a cluster of imprinted genes on chromosome 7q12. This gene is transcribed in both neuronal and multiple embryonic tissues, and it is maternally expressed mainly in embryonic skeletal muscle tissues and biallelically expressed in other embryonic tissues. The protein encoded by this gene includes a PDZ domain and a sterile alpha motif (SAM). It is a regulatory subunit of protein phosphatase I, and controls actin cytoskeleton reorganization. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Oct 2009]

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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=0.0399867).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PPP1R9ANM_001166160.2 linkuse as main transcriptc.300G>A p.Met100Ile missense_variant 2/20 ENST00000433360.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PPP1R9AENST00000433360.6 linkuse as main transcriptc.300G>A p.Met100Ile missense_variant 2/201 NM_001166160.2 Q9ULJ8-3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152170
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251242
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135822
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:
0.0000980
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000479
AC:
7
AN:
1461880
Hom.:
0
Cov.:
32
AF XY:
0.00000688
AC XY:
5
AN XY:
727234
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:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152288
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74472
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
ExAC
AF:
0.0000247
AC:
3
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 GeneticsNov 09, 2021The c.300G>A (p.M100I) alteration is located in exon 2 (coding exon 1) of the PPP1R9A gene. This alteration results from a G to A substitution at nucleotide position 300, causing the methionine (M) at amino acid position 100 to be replaced by an isoleucine (I). 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
0.15
BayesDel_addAF
Benign
-0.42
T
BayesDel_noAF
Benign
-0.61
CADD
Benign
21
DANN
Benign
0.85
DEOGEN2
Benign
0.044
.;T;.;T;.;.
Eigen
Benign
-0.20
Eigen_PC
Benign
-0.058
FATHMM_MKL
Benign
0.73
D
LIST_S2
Uncertain
0.90
D;D;.;.;D;D
M_CAP
Benign
0.0029
T
MetaRNN
Benign
0.040
T;T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
-0.69
N;N;N;N;N;N
MutationTaster
Benign
1.0
N;N;N;N;N;N
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.26
N;N;N;N;N;N
REVEL
Benign
0.095
Sift
Benign
0.38
T;T;T;T;T;T
Sift4G
Benign
0.20
T;T;T;T;T;T
Polyphen
0.0010
.;B;.;B;.;.
Vest4
0.14
MutPred
0.14
Gain of methylation at K101 (P = 0.0351);Gain of methylation at K101 (P = 0.0351);Gain of methylation at K101 (P = 0.0351);Gain of methylation at K101 (P = 0.0351);Gain of methylation at K101 (P = 0.0351);Gain of methylation at K101 (P = 0.0351);
MVP
0.35
MPC
0.18
ClinPred
0.044
T
GERP RS
4.8
Varity_R
0.094
gMVP
0.12

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: rs374284975; hg19: chr7-94539725; COSMIC: COSV56887728; COSMIC: COSV56887728; API