Genetic Variant NM_147180.4:c.449T>G (chr9-101594473-A-C) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_147180.4(PPP3R2):c.449T>G(p.Phe150Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F150S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

PPP3R2
NM_147180.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 5.02

Publications

0 publications found

Variant links:

Genes affected

PPP3R2 (HGNC:9318): (protein phosphatase 3 regulatory subunit B, beta) Predicted to enable calcium ion binding activity and calcium-dependent protein serine/threonine phosphatase regulator activity. Predicted to be involved in regulation of catalytic activity. Predicted to act upstream of or within penetration of zona pellucida. Predicted to be located in sperm mitochondrial sheath. Predicted to be part of calcineurin complex. [provided by Alliance of Genome Resources, Apr 2022]

PPP3R2 links:

GRIN3A (HGNC:16767): (glutamate ionotropic receptor NMDA type subunit 3A) This gene encodes a subunit of the N-methyl-D-aspartate (NMDA) receptors, which belong to the superfamily of glutamate-regulated ion channels, and function in physiological and pathological processes in the central nervous system. This subunit shows greater than 90% identity to the corresponding subunit in rat. Studies in the knockout mouse deficient in this subunit suggest that this gene may be involved in the development of synaptic elements by modulating NMDA receptor activity. [provided by RefSeq, Jul 2008]

GRIN3A links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.94

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_147180.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PPP3R2	NM_147180.4	MANE Select	c.449T>G	p.Phe150Cys	missense	Exon 1 of 1	NP_671709.2	Q96LZ3
	GRIN3A	NM_133445.3	MANE Select	c.2767-15113T>G		intron	N/A	NP_597702.2	Q8TCU5

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
PPP3R2	ENST00000374806.2	TSL:6 MANE Select	c.449T>G	p.Phe150Cys	missense	Exon 1 of 1	ENSP00000363939.2	Q96LZ3
PPP3R2	ENST00000636434.1	TSL:1	c.149T>G	p.Phe50Cys	missense	Exon 2 of 2	ENSP00000490051.1	A0A1B0GUC7
GRIN3A	ENST00000361820.6	TSL:1 MANE Select	c.2767-15113T>G		intron	N/A	ENSP00000355155.3	Q8TCU5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727244

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1112006

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.71

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Uncertain

0.10

CADD

Uncertain

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

M_CAP

Uncertain

0.14

MetaRNN

Pathogenic

0.94

MetaSVM

Uncertain

0.14

PhyloP100

5.0

PrimateAI

Uncertain

0.60

PROVEAN

Pathogenic

-7.5

REVEL

Pathogenic

0.75

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Vest4

0.77

MVP

0.87

MPC

1.2

ClinPred

1.0

GERP RS

3.0

PromoterAI

0.010

Neutral

(source)

Mutation Taster

=87/13

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over