7-551426-G-A

Position:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_ModerateBP6_ModerateBP7BS1BS2

The NM_001164760.2(PRKAR1B):​c.936C>T​(p.Tyr312=) 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

2

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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 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.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00369 (562/152194) while in subpopulation AFR AF= 0.0124 (513/41502). AF 95% confidence interval is 0.0115. There are 4 homozygotes in gnomad4. There are 275 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High AC in GnomAd4 at 562 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PRKAR1BNM_001164760.2 linkuse as main transcriptc.936C>T p.Tyr312= synonymous_variant 10/11 ENST00000537384.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PRKAR1BENST00000537384.6 linkuse as main transcriptc.936C>T p.Tyr312= synonymous_variant 10/115 NM_001164760.2 P1

Frequencies

GnomAD3 genomes
AF:
0.00366
AC:
556
AN:
152076
Hom.:
4
Cov.:
33
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.:
1
AF XY:
0.000747
AC XY:
67
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.:
2
Cov.:
31
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.:
4
Cov.:
33
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.:
1
Bravo
AF:
0.00389
Asia WGS
AF:
0.00173
AC:
6
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 31, 2019- -
PRKAR1B-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMay 06, 2024This 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.

Other links and lift over

dbSNP: rs144431535; hg19: chr7-591063; API