chr7-550610-T-G

Position:

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BA1

The NM_001164760.2(PRKAR1B):​c.974-8A>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0112 in 1,548,320 control chromosomes in the GnomAD database, including 870 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.022 ( 121 hom., cov: 32)
Exomes 𝑓: 0.010 ( 749 hom. )

Consequence

PRKAR1B
NM_001164760.2 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001114
2

Clinical Significance

Benign no assertion criteria provided B:3

Conservation

PhyloP100: 0.532
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=-0.91).
BP6
Variant 7-550610-T-G is Benign according to our data. Variant chr7-550610-T-G is described in ClinVar as [Benign]. Clinvar id is 1209930.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr7-550610-T-G is described in Lovd as [Benign].
BA1
GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.143 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
PRKAR1BNM_001164760.2 linkuse as main transcriptc.974-8A>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000537384.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
PRKAR1BENST00000537384.6 linkuse as main transcriptc.974-8A>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 5 NM_001164760.2 P1

Frequencies

GnomAD3 genomes
AF:
0.0219
AC:
3323
AN:
151396
Hom.:
122
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0477
Gnomad AMI
AF:
0.0110
Gnomad AMR
AF:
0.00755
Gnomad ASJ
AF:
0.00664
Gnomad EAS
AF:
0.152
Gnomad SAS
AF:
0.0176
Gnomad FIN
AF:
0.00124
Gnomad MID
AF:
0.0223
Gnomad NFE
AF:
0.00425
Gnomad OTH
AF:
0.0207
GnomAD3 exomes
AF:
0.0220
AC:
4008
AN:
182266
Hom.:
227
AF XY:
0.0206
AC XY:
2042
AN XY:
99192
show subpopulations
Gnomad AFR exome
AF:
0.0454
Gnomad AMR exome
AF:
0.00445
Gnomad ASJ exome
AF:
0.00376
Gnomad EAS exome
AF:
0.166
Gnomad SAS exome
AF:
0.0156
Gnomad FIN exome
AF:
0.00134
Gnomad NFE exome
AF:
0.00396
Gnomad OTH exome
AF:
0.0152
GnomAD4 exome
AF:
0.0100
AC:
14005
AN:
1396804
Hom.:
749
Cov.:
32
AF XY:
0.0101
AC XY:
6972
AN XY:
689328
show subpopulations
Gnomad4 AFR exome
AF:
0.0499
Gnomad4 AMR exome
AF:
0.00472
Gnomad4 ASJ exome
AF:
0.00393
Gnomad4 EAS exome
AF:
0.179
Gnomad4 SAS exome
AF:
0.0141
Gnomad4 FIN exome
AF:
0.00150
Gnomad4 NFE exome
AF:
0.00285
Gnomad4 OTH exome
AF:
0.0159
GnomAD4 genome
AF:
0.0220
AC:
3330
AN:
151516
Hom.:
121
Cov.:
32
AF XY:
0.0229
AC XY:
1692
AN XY:
74004
show subpopulations
Gnomad4 AFR
AF:
0.0479
Gnomad4 AMR
AF:
0.00748
Gnomad4 ASJ
AF:
0.00664
Gnomad4 EAS
AF:
0.152
Gnomad4 SAS
AF:
0.0169
Gnomad4 FIN
AF:
0.00124
Gnomad4 NFE
AF:
0.00425
Gnomad4 OTH
AF:
0.0200
Alfa
AF:
0.0131
Hom.:
7
Bravo
AF:
0.0240
Asia WGS
AF:
0.0750
AC:
263
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

not specified Benign:2
Benign, no assertion criteria providedclinical testingClinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center-- -
Benign, no assertion criteria providedclinical testingGenome Diagnostics Laboratory, Amsterdam University Medical Center-- -
PRKAR1B-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesAug 02, 2019This 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
-0.91
CADD
Benign
3.5
DANN
Benign
0.49

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000011
dbscSNV1_RF
Benign
0.0040
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: rs28585978; hg19: chr7-590247; COSMIC: COSV64319195; API