1-2056556-A-G

Variant summary

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

The NM_002744.6(PRKCZ):c.266A>G(p.Glu89Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 12/19 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: PRKCZ NM_002744.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.37

Genes affected

PRKCZ (HGNC:9412): (protein kinase C zeta) Protein kinase C (PKC) zeta is a member of the PKC family of serine/threonine kinases which are involved in a variety of cellular processes such as proliferation, differentiation and secretion. Unlike the classical PKC isoenzymes which are calcium-dependent, PKC zeta exhibits a kinase activity which is independent of calcium and diacylglycerol but not of phosphatidylserine. Furthermore, it is insensitive to typical PKC inhibitors and cannot be activated by phorbol ester. Unlike the classical PKC isoenzymes, it has only a single zinc finger module. These structural and biochemical properties indicate that the zeta subspecies is related to, but distinct from other isoenzymes of PKC. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]

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/exons	MANE	UniProt
PRKCZ	NM_002744.6	c.266A>G	p.Glu89Gly	missense_variant	3/18	ENST00000378567.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRKCZ	ENST00000378567.8	c.266A>G	p.Glu89Gly	missense_variant	3/18	1	NM_002744.6	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 16, 2021

The c.266A>G (p.E89G) alteration is located in exon 3 (coding exon 3) of the PRKCZ gene. This alteration results from a A to G substitution at nucleotide position 266, causing the glutamic acid (E) at amino acid position 89 to be replaced by a glycine (G). 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	0.080
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.43
Cadd	Benign	18
Dann	Uncertain	0.99
DEOGEN2	Benign	0.20	T;T
Eigen	Benign	-0.57
Eigen_PC	Benign	-0.47
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Benign	0.79	T;T
M_CAP	Benign	0.010	T
MetaRNN	Uncertain	0.49	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.7	L;.
MutationTaster	Benign	0.77	N
PrimateAI	Benign	0.37	T
PROVEAN	Benign	-1.5	N;N
REVEL	Benign	0.055
Sift	Uncertain	0.027	D;D
Sift4G	Benign	0.27	T;T
Polyphen		0.0010	B;.
Vest4		0.51
MutPred		0.78		Gain of sheet (P = 0.1208);.;
MVP		0.76
MPC		0.28
ClinPred		0.35	T
GERP RS		2.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.27

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr1-1987995;