chr19-14093715-G-C

Position:

• chr19-14093715-G-C

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_Strong BP6_Very_Strong BP7 BS1 BS2

The ENST00000308677.9(PRKACA):​c.843C>G​(p.Arg281=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000978 in 1,614,162 control chromosomes in the GnomAD database, including 12 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

• Frequency:
  • Genomes: 𝑓 0.0051 (5 hom., cov: 31)
  • Exomes 𝑓: 0.00054 (7 hom.)
• Consequence: PRKACA ENST00000308677.9 synonymous
• Clinical Significance: Benign criteria provided, multiple submitters, no conflicts B:2
• Conservation: PhyloP100: 2.08

Genes affected

PRKACA (HGNC:9380): (protein kinase cAMP-activated catalytic subunit alpha) This gene encodes one of the catalytic subunits of protein kinase A, which exists as a tetrameric holoenzyme with two regulatory subunits and two catalytic subunits, in its inactive form. cAMP causes the dissociation of the inactive holoenzyme into a dimer of regulatory subunits bound to four cAMP and two free monomeric catalytic subunits. Four different regulatory subunits and three catalytic subunits have been identified in humans. cAMP-dependent phosphorylation of proteins by protein kinase A is important to many cellular processes, including differentiation, proliferation, and apoptosis. Constitutive activation of this gene caused either by somatic mutations, or genomic duplications of regions that include this gene, have been associated with hyperplasias and adenomas of the adrenal cortex and are linked to corticotropin-independent Cushing's syndrome. Alternative splicing results in multiple transcript variants encoding different isoforms. Tissue-specific isoforms that differ at the N-terminus have been described, and these isoforms may differ in the post-translational modifications that occur at the N-terminus of some isoforms. [provided by RefSeq, Jan 2015]

ACMG classification

Verdict is Benign. Variant got -21 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.55).
• BP6: Variant 19-14093715-G-C is Benign according to our data. Variant chr19-14093715-G-C is described in ClinVar as [Benign]. Clinvar id is 768975.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=2.08 with no splicing effect.
• BS1: Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00515 (784/152304) while in subpopulation AFR AF= 0.0183 (759/41564). AF 95% confidence interval is 0.0172. There are 5 homozygotes in gnomad4. There are 368 alleles in male gnomad4 subpopulation. Median coverage is 31. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 784 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PRKACA	NM_002730.4	c.843C>G	p.Arg281=	synonymous_variant	9/10	ENST00000308677.9	NP_002721.1
PRKACA	NM_001304349.2	c.1071C>G	p.Arg357=	synonymous_variant	9/10		NP_001291278.1
PRKACA	NM_207518.3	c.819C>G	p.Arg273=	synonymous_variant	9/10		NP_997401.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PRKACA	ENST00000308677.9	c.843C>G	p.Arg281=	synonymous_variant	9/10	1	NM_002730.4	ENSP00000309591	P1

Frequencies

GnomAD3 genomes AF: 0.00515 AC: 783 AN: 152186 Hom.: 5 Cov.: 31

Gnomad AFR AF: 0.0183

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00118

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000441

Gnomad OTH AF: 0.00144

GnomAD3 exomes AF: 0.00151 AC: 379 AN: 251434 Hom.: 8 AF XY: 0.00115 AC XY: 156 AN XY: 135900

Gnomad AFR exome AF: 0.0213

Gnomad AMR exome AF: 0.000694

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000653

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000264

Gnomad OTH exome AF: 0.000489

GnomAD4 exome AF: 0.000543 AC: 794 AN: 1461858 Hom.: 7 Cov.: 31 AF XY: 0.000455 AC XY: 331 AN XY: 727230

Gnomad4 AFR exome AF: 0.0204

Gnomad4 AMR exome AF: 0.000626

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000464

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000162

Gnomad4 OTH exome AF: 0.000944

GnomAD4 genome AF: 0.00515 AC: 784 AN: 152304 Hom.: 5 Cov.: 31 AF XY: 0.00494 AC XY: 368 AN XY: 74466

Gnomad4 AFR AF: 0.0183

Gnomad4 AMR AF: 0.00118

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000207

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.00142

Alfa AF: 0.000738 Hom.: 0

Bravo AF: 0.00621

Asia WGS AF: 0.000866 AC: 3 AN: 3478

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:2

Benign, criteria provided, single submitter	not provided	Breakthrough Genomics, Breakthrough Genomics	-	- -
Benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Dec 31, 2019	- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.55
CADD	Benign	12
DANN	Benign	0.84

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		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: rs3729858; hg19: chr19-14204527;