7-550573-G-A

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Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PS1_ModeratePM1PM2PP3_StrongPP5_Very_Strong

The NM_001164760.2(PRKAR1B):​c.1003C>T​(p.Arg335Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

PRKAR1B
NM_001164760.2 missense

Scores

16
2
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:5

Conservation

PhyloP100: 2.04
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 Pathogenic. Variant got 18 ACMG points.

PS1
Transcript NM_001164760.2 (PRKAR1B) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt
PM1
In a binding_site (size 0) in uniprot entity KAP1_HUMAN
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.982
PP5
Variant 7-550573-G-A is Pathogenic according to our data. Variant chr7-550573-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 1172535.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
PRKAR1BNM_001164760.2 linkuse as main transcriptc.1003C>T p.Arg335Trp 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.1003C>T p.Arg335Trp missense_variant 11/115 NM_001164760.2 ENSP00000440449 P1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1441246
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
715972
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Pathogenic:3
Pathogenic, criteria provided, single submitterclinical testingLaboratoire de Génétique Moléculaire, CHU Bordeaux-- -
Likely pathogenic, criteria provided, single submitterclinical testingInstitute of Medical Genetics and Applied Genomics, University Hospital TübingenSep 15, 2021- -
Pathogenic, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenFeb 01, 2024PRKAR1B: PS2:Very Strong, PM2, PS4:Moderate, PP3, PS3:Supporting -
PRKAR1B-related neurodevelopmental disorder Pathogenic:1
Pathogenic, criteria provided, single submitterclinical testingUndiagnosed Diseases Network, NIHMay 17, 2021- -
Marbach-Schaaf neurodevelopmental syndrome Pathogenic:1
Pathogenic, no assertion criteria providedliterature onlyOMIMDec 23, 2021- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
1.0
BayesDel_addAF
Pathogenic
0.46
D
BayesDel_noAF
Pathogenic
0.43
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.96
D;D;D;D;D
Eigen
Pathogenic
0.79
Eigen_PC
Uncertain
0.64
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Pathogenic
0.99
D;.;.;.;.
M_CAP
Pathogenic
0.50
D
MetaRNN
Pathogenic
0.98
D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.7
H;H;H;H;H
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.93
D
PROVEAN
Pathogenic
-5.8
D;D;D;D;D
REVEL
Pathogenic
0.92
Sift
Pathogenic
0.0
D;D;D;D;D
Sift4G
Pathogenic
0.0
D;D;D;D;D
Polyphen
1.0
D;D;D;D;D
Vest4
0.92
MutPred
0.90
Gain of catalytic residue at R335 (P = 0.0267);Gain of catalytic residue at R335 (P = 0.0267);Gain of catalytic residue at R335 (P = 0.0267);Gain of catalytic residue at R335 (P = 0.0267);Gain of catalytic residue at R335 (P = 0.0267);
MVP
1.0
MPC
1.2
ClinPred
1.0
D
GERP RS
4.7
Varity_R
0.80
gMVP
0.94

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: rs1475000361; hg19: chr7-590210; COSMIC: COSV100816886; API