chr10-52251576-A-C

Position:

• chr10-52251576-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.1083A>C​(p.Glu361Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,136 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 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)
  • Exomes 𝑓: 0.0000027 (0 hom.)
• Consequence: PRKG1 NM_006258.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.76

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=0.1670467).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
PRKG1	NM_006258.4	c.1083A>C	p.Glu361Asp	missense_variant	10/18	ENST00000373980.11
LOC124902425	XR_007062145.1	n.147+1795T>G		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
PRKG1	ENST00000373980.11	c.1083A>C	p.Glu361Asp	missense_variant	10/18	1	NM_006258.4
PRKG1-AS1	ENST00000452247.7	n.462-9335T>G		intron_variant, non_coding_transcript_variant		5

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000797 AC: 2 AN: 250864 Hom.: 0 AF XY: 0.0000148 AC XY: 2 AN XY: 135570

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: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000177

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000274 AC: 4 AN: 1461136 Hom.: 0 Cov.: 30 AF XY: 0.00000413 AC XY: 3 AN XY: 726886

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: 0.00000360

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 14, 2023

The p.E361D variant (also known as c.1083A>C), located in coding exon 10 of the PRKG1 gene, results from an A to C substitution at nucleotide position 1083. The glutamic acid at codon 361 is replaced by aspartic acid, an amino acid with highly similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.19
BayesDel_addAF	Uncertain	0.034	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	22
DANN	Uncertain	0.98
DEOGEN2	Benign	0.20	T;T;.;.
Eigen	Benign	-0.19
Eigen_PC	Benign	0.066
FATHMM_MKL	Uncertain	0.93	D
LIST_S2	Uncertain	0.95	.;D;.;D
M_CAP	Benign	0.0084	T
MetaRNN	Benign	0.17	T;T;T;T
MetaSVM	Benign	-0.94	T
MutationAssessor	Benign	0.0	N;N;.;.
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Pathogenic	0.84	D
PROVEAN	Benign	0.43	N;.;.;N
REVEL	Benign	0.19
Sift	Benign	0.40	T;.;.;T
Sift4G	Benign	0.53	.;T;.;T
Polyphen		0.0	B;B;B;B
Vest4		0.48, 0.51
MutPred		0.27		Gain of helix (P = 0.132);Gain of helix (P = 0.132);.;.;
MVP		0.75
MPC		0.76
ClinPred		0.24	T
GERP RS		6.1
Varity_R		0.56
gMVP		0.79

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: rs1346939466; hg19: chr10-54011336;