8-22474959-C-T

Variant names:

• chr8-22474959-C-T
• rs146104346
• NM_005605.5:c.55C>T

Variant summary

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

The NM_005605.5(PPP3CC):​c.55C>T​(p.Pro19Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000143 in 1,400,528 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: PPP3CC NM_005605.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.81

Genes affected

PPP3CC (HGNC:9316): (protein phosphatase 3 catalytic subunit gamma) Calcineurin is a calcium-dependent, calmodulin-stimulated protein phosphatase involved in the downstream regulation of dopaminergic signal transduction. Calcineurin is composed of a regulatory subunit and a catalytic subunit. The protein encoded by this gene represents one of the regulatory subunits that has been found for calcineurin. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2011]

ACMG classification

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 rank	MANE	Protein	UniProt
PPP3CC	NM_005605.5	c.55C>T	p.Pro19Ser	missense_variant	Exon 2 of 14	ENST00000240139.10	NP_005596.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PPP3CC	ENST00000240139.10	c.55C>T	p.Pro19Ser	missense_variant	Exon 2 of 14	1	NM_005605.5	ENSP00000240139.5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000143 AC: 2 AN: 1400528 Hom.: 0 Cov.: 30 AF XY: 0.00000144 AC XY: 1 AN XY: 694676

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: 0.00000186

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Uncertain	0.15	D
BayesDel_noAF	Uncertain	-0.020
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.22	.;T;.;.;T
Eigen	Uncertain	0.32
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Pathogenic	0.98	D;D;D;D;D
M_CAP	Benign	0.052	D
MetaRNN	Uncertain	0.70	D;D;D;D;D
MetaSVM	Benign	-0.59	T
MutationAssessor	Uncertain	2.7	.;M;M;M;.
PrimateAI	Pathogenic	0.83	D
PROVEAN	Uncertain	-3.8	D;D;D;D;D
REVEL	Uncertain	0.29
Sift	Benign	0.046	D;T;T;T;D
Sift4G	Benign	0.061	T;T;T;T;T
Polyphen		0.14	B;B;B;.;.
Vest4		0.72
MutPred		0.46		Gain of MoRF binding (P = 0.0553);Gain of MoRF binding (P = 0.0553);Gain of MoRF binding (P = 0.0553);Gain of MoRF binding (P = 0.0553);.;
MVP		0.83
MPC		0.37
ClinPred		0.98	D
GERP RS		5.8
Varity_R		0.30
gMVP		0.65

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

Other links and lift over

dbSNP: rs146104346; hg19: chr8-22332472; COSMIC: COSV51499721; COSMIC: COSV51499721;