7-550561-C-T

Position:

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BS1_SupportingBS2

The NM_001164760.2(PRKAR1B):​c.1015G>A​(p.Val339Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000438 in 1,599,762 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000045 ( 0 hom. )

Consequence

PRKAR1B
NM_001164760.2 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.33
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0000329 (5/152148) while in subpopulation NFE AF= 0.0000588 (4/68010). AF 95% confidence interval is 0.0000197. There are 0 homozygotes in gnomad4. There are 1 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PRKAR1BNM_001164760.2 linkuse as main transcriptc.1015G>A p.Val339Ile missense_variant 11/11 ENST00000537384.6 NP_001158232.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
PRKAR1BENST00000537384.6 linkuse as main transcriptc.1015G>A p.Val339Ile missense_variant 11/115 NM_001164760.2 ENSP00000440449 P1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152148
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000392
AC:
9
AN:
229746
Hom.:
0
AF XY:
0.0000318
AC XY:
4
AN XY:
125854
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000577
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000774
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000449
AC:
65
AN:
1447614
Hom.:
0
Cov.:
31
AF XY:
0.0000514
AC XY:
37
AN XY:
719574
show subpopulations
Gnomad4 AFR exome
AF:
0.0000610
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000253
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000195
Gnomad4 NFE exome
AF:
0.0000515
Gnomad4 OTH exome
AF:
0.0000672
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152148
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74318
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000588
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000679
Hom.:
0
Bravo
AF:
0.0000529
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000117
AC:
1
ExAC
AF:
0.0000167
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsAug 04, 2022The c.1015G>A (p.V339I) alteration is located in exon 11 (coding exon 10) of the PRKAR1B gene. This alteration results from a G to A substitution at nucleotide position 1015, causing the valine (V) at amino acid position 339 to be replaced by an isoleucine (I). 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
Uncertain
0.39
BayesDel_addAF
Uncertain
0.047
T
BayesDel_noAF
Uncertain
0.010
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.55
D;D;D;D;D
Eigen
Uncertain
0.48
Eigen_PC
Uncertain
0.48
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Pathogenic
0.97
D;.;.;.;.
M_CAP
Uncertain
0.23
D
MetaRNN
Uncertain
0.59
D;D;D;D;D
MetaSVM
Pathogenic
0.84
D
MutationAssessor
Benign
1.2
L;L;L;L;L
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.82
D
PROVEAN
Benign
-0.74
N;N;N;N;N
REVEL
Pathogenic
0.67
Sift
Benign
0.047
D;D;D;D;D
Sift4G
Benign
0.13
T;T;T;T;T
Polyphen
0.78
P;P;P;P;P
Vest4
0.61
MVP
0.93
MPC
1.1
ClinPred
0.30
T
GERP RS
4.7
Varity_R
0.24
gMVP
0.43

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

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

Other links and lift over

dbSNP: rs374626599; hg19: chr7-590198; COSMIC: COSV100816620; API