Genetic Variant PRKAR1B:p.Tyr312Tyr (chr7-551426-G-A) – ACMG Classification: Benign (-9 pts)

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_ModerateBP6_ModerateBP7BS2

The NM_001164760.2(PRKAR1B):c.936C>T(p.Tyr312Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000814 in 1,560,538 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★).

Frequency

Genomes: 𝑓 0.0037 ( 4 hom., cov: 33)

Exomes 𝑓: 0.00050 ( 2 hom. )

Consequence

PRKAR1B
NM_001164760.2 synonymous

Scores

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: -1.10

Variant links:

Genes affected

PRKAR1B (HGNC:9390): (protein kinase cAMP-dependent type I regulatory subunit beta) The protein encoded by this gene is a regulatory subunit of cyclic AMP-dependent protein kinase A (PKA), which is involved in the signaling pathway of the second messenger cAMP. Two regulatory and two catalytic subunits form the PKA holoenzyme, disbands after cAMP binding. The holoenzyme is involved in many cellular events, including ion transport, metabolism, and transcription. Several transcript variants encoding the same protein have been found for this gene. [provided by RefSeq, Aug 2015]

PRKAR1B links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.46).

BP6

Variant 7-551426-G-A is Benign according to our data. Variant chr7-551426-G-A is described in ClinVar as [Benign]. Clinvar id is 782256.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr7-551426-G-A is described in Lovd as [Likely_benign].

BP7

Synonymous conserved (PhyloP=-1.1 with no splicing effect.

BS2

High AC in GnomAd4 at 562 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKAR1B	NM_001164760.2 link	c.936C>T	p.Tyr312Tyr	synonymous_variant	Exon 10 of 11	ENST00000537384.6	NP_001158232.1	P31321

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRKAR1B	ENST00000537384.6 link	c.936C>T	p.Tyr312Tyr	synonymous_variant	Exon 10 of 11	5	NM_001164760.2	ENSP00000440449.1		P31321

Frequencies

GnomAD3 genomes

AF:

0.00366

AC:

556

AN:

152076

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0123

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00170

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00173

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000883

Gnomad OTH

AF:

0.00335

GnomAD3 exomes

AF:

0.000975

AC:

164

AN:

168218

Hom.:

AF XY:

0.000747

AC XY:

AN XY:

89684

show subpopulations

Gnomad AFR exome

AF:

0.0121

Gnomad AMR exome

AF:

0.000513

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000900

Gnomad SAS exome

AF:

0.000254

Gnomad FIN exome

AF:

0.0000632

Gnomad NFE exome

AF:

0.0000600

Gnomad OTH exome

AF:

0.000436

GnomAD4 exome

AF:

0.000503

AC:

709

AN:

1408344

Hom.:

Cov.:

AF XY:

0.000457

AC XY:

318

AN XY:

695486

show subpopulations

Gnomad4 AFR exome

AF:

0.0115

Gnomad4 AMR exome

AF:

0.000716

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00487

Gnomad4 SAS exome

AF:

0.000312

Gnomad4 FIN exome

AF:

0.0000207

Gnomad4 NFE exome

AF:

0.0000286

Gnomad4 OTH exome

AF:

0.00105

GnomAD4 genome

AF:

0.00369

AC:

562

AN:

152194

Hom.:

Cov.:

AF XY:

0.00370

AC XY:

275

AN XY:

74412

show subpopulations

Gnomad4 AFR

AF:

0.0124

Gnomad4 AMR

AF:

0.00170

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00174

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000883

Gnomad4 OTH

AF:

0.00332

Alfa

AF:

0.00157

Hom.:

Bravo

AF:

0.00389

Asia WGS

AF:

0.00173

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Benign:1

Dec 31, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

PRKAR1B-related disorder

Benign:1

May 06, 2024

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.46

CADD

Benign

0.44

DANN

Benign

0.91

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over