10-52251582-A-C

Position:

• chr10-52251582-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_006258.4(PRKG1):​c.1089A>C​(p.Glu363Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 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: PRKG1 NM_006258.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.31

Genes affected

PRKG1 (HGNC:9414): (protein kinase cGMP-dependent 1) Mammals have three different isoforms of cyclic GMP-dependent protein kinase (Ialpha, Ibeta, and II). These PRKG isoforms act as key mediators of the nitric oxide/cGMP signaling pathway and are important components of many signal transduction processes in diverse cell types. This PRKG1 gene on human chromosome 10 encodes the soluble Ialpha and Ibeta isoforms of PRKG by alternative transcript splicing. A separate gene on human chromosome 4, PRKG2, encodes the membrane-bound PRKG isoform II. The PRKG1 proteins play a central role in regulating cardiovascular and neuronal functions in addition to relaxing smooth muscle tone, preventing platelet aggregation, and modulating cell growth. This gene is most strongly expressed in all types of smooth muscle, platelets, cerebellar Purkinje cells, hippocampal neurons, and the lateral amygdala. Isoforms Ialpha and Ibeta have identical cGMP-binding and catalytic domains but differ in their leucine/isoleucine zipper and autoinhibitory sequences and therefore differ in their dimerization substrates and kinase enzyme activity. [provided by RefSeq, Sep 2011]

PRKG1-AS1 (HGNC:45029): (PRKG1 antisense RNA 1)

LOC124902425 (HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in gene, where missense usually causes diseases (based on misZ statistic), PRKG1. . Gene score misZ 2.982 (greater than the threshold 3.09). Trascript score misZ 3.8719 (greater than threshold 3.09). GenCC has associacion of gene with familial thoracic aortic aneurysm and aortic dissection, aortic aneurysm, familial thoracic 8.
• BP4: Computational evidence support a benign effect (MetaRNN=0.16185066).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PRKG1	NM_006258.4	c.1089A>C	p.Glu363Asp	missense_variant	10/18	ENST00000373980.11
LOC124902425	XR_007062145.1	n.147+1789T>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRKG1	ENST00000373980.11	c.1089A>C	p.Glu363Asp	missense_variant	10/18	1	NM_006258.4
PRKG1-AS1	ENST00000452247.7	n.462-9341T>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000399 AC: 1 AN: 250888 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135582

Gnomad AFR exome AF: 0.0000616

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: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Aortic aneurysm, familial thoracic 8 Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 17, 2023

This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 363 of the PRKG1 protein (p.Glu363Asp). This variant is present in population databases (rs762661667, gnomAD 0.007%). This variant has not been reported in the literature in individuals affected with PRKG1-related conditions. An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.57
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	21
DANN	Benign	0.97
DEOGEN2	Benign	0.28	T;T;.;.
Eigen	Benign	-0.29
Eigen_PC	Benign	-0.066
FATHMM_MKL	Uncertain	0.91	D
LIST_S2	Uncertain	0.94	.;D;.;D
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.16	T;T;T;T
MetaSVM	Benign	-0.98	T
MutationAssessor	Benign	0.0	N;N;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.81	D
PROVEAN	Benign	-1.0	N;.;.;N
REVEL	Benign	0.28
Sift	Benign	0.36	T;.;.;T
Sift4G	Benign	0.46	.;T;.;T
Polyphen		0.0	B;B;B;B
Vest4		0.50, 0.51
MutPred		0.25		Loss of disorder (P = 0.1456);Loss of disorder (P = 0.1456);.;.;
MVP		0.67
MPC		0.57
ClinPred		0.19	T
GERP RS		5.0
Varity_R		0.48
gMVP		0.85

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs762661667; hg19: chr10-54011342;