rs148058026

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001164760.2(PRKAR1B):c.937G>A(p.Val313Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000066 in 1,560,692 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000065 ( 0 hom. )

Consequence

PRKAR1B
NM_001164760.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.73

Publications

2 publications found

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 Gene-Disease associations (from GenCC):

Marbach-Schaaf neurodevelopmental syndrome
Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
PRKAR1B-related neurodegenerative dementia with intermediate filaments
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

PRKAR1B links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.02920854).

BS2

High AC in GnomAd4 at 11 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRKAR1B	NM_001164760.2 link	c.937G>A	p.Val313Met	missense_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.937G>A	p.Val313Met	missense_variant	Exon 10 of 11	5	NM_001164760.2	ENSP00000440449.1		P31321

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152132

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000963

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000149

AC:

AN:

168308

AF XY:

0.000189

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000751

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000750

Gnomad OTH exome

AF:

0.000218

GnomAD4 exome

AF:

0.0000653

AC:

AN:

1408442

Hom.:

Cov.:

AF XY:

0.0000647

AC XY:

AN XY:

695524

show subpopulations

African (AFR)

AF:

0.0000611

AC:

AN:

32746

American (AMR)

AF:

0.00

AC:

AN:

36348

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25168

East Asian (EAS)

AF:

0.000771

AC:

AN:

37594

South Asian (SAS)

AF:

0.000300

AC:

AN:

80054

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48436

Middle Eastern (MID)

AF:

0.000181

AC:

AN:

5532

European-Non Finnish (NFE)

AF:

0.0000249

AC:

AN:

1084196

Other (OTH)

AF:

0.000154

AC:

AN:

58368

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000722

AC:

AN:

152250

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74432

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41530

American (AMR)

AF:

0.00

AC:

AN:

15298

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000965

AC:

AN:

5182

South Asian (SAS)

AF:

0.000414

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67994

Other (OTH)

AF:

0.000473

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.516

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.000237

Hom.:

Bravo

AF:

0.000151

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000118

AC:

ExAC

AF:

0.0000913

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 23, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.937G>A (p.V313M) alteration is located in exon 10 (coding exon 9) of the PRKAR1B gene. This alteration results from a G to A substitution at nucleotide position 937, causing the valine (V) at amino acid position 313 to be replaced by a methionine (M). 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

0.12

BayesDel_addAF

Benign

-0.21

BayesDel_noAF

Benign

-0.19

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.60

D;D;D;D;D

Eigen

Benign

-0.33

Eigen_PC

Benign

-0.23

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.93

D;.;.;.;.

M_CAP

Uncertain

0.089

MetaRNN

Benign

0.029

T;T;T;T;T

MetaSVM

Benign

-0.30

MutationAssessor

Benign

1.7

L;L;L;L;L

PhyloP100

1.7

PrimateAI

Uncertain

0.78

PROVEAN

Benign

-1.1

N;N;N;N;N

REVEL

Benign

0.25

Sift

Benign

0.12

T;T;T;T;T

Sift4G

Benign

0.071

T;T;T;T;T

Polyphen

0.0060

B;B;B;B;B

Vest4

0.46

MVP

0.89

MPC

0.39

ClinPred

0.046

GERP RS

2.7

Varity_R

0.082

gMVP

0.50

Mutation Taster

=74/26

polymorphism

(source)

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

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rs148058026

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over