rs1000673132

Variant summary

Our verdict is Likely benign. Variant got -5 ACMG points: 0P and 5B. BP4BS2

The NM_005751.5(AKAP9):​c.5752A>C​(p.Ser1918Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000868 in 1,612,536 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 29)
Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

AKAP9
NM_005751.5 missense

Scores

1
6
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 5.97
Variant links:
Genes affected
AKAP9 (HGNC:379): (A-kinase anchoring protein 9) The A-kinase anchor proteins (AKAPs) are a group of structurally diverse proteins which have the common function of binding to the regulatory subunit of protein kinase A (PKA) and confining the holoenzyme to discrete locations within the cell. This gene encodes a member of the AKAP family. Alternate splicing of this gene results in at least two isoforms that localize to the centrosome and the Golgi apparatus, and interact with numerous signaling proteins from multiple signal transduction pathways. These signaling proteins include type II protein kinase A, serine/threonine kinase protein kinase N, protein phosphatase 1, protein phosphatase 2a, protein kinase C-epsilon and phosphodiesterase 4D3. [provided by RefSeq, Aug 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.31603035).
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AKAP9NM_005751.5 linkc.5752A>C p.Ser1918Arg missense_variant Exon 23 of 50 ENST00000356239.8 NP_005742.4 Q99996-2Q6PJH3Q5GIA7
AKAP9NM_147185.3 linkc.5752A>C p.Ser1918Arg missense_variant Exon 23 of 50 NP_671714.1 Q99996-3Q6PJH3Q5GIA7
AKAP9NM_001379277.1 linkc.397A>C p.Ser133Arg missense_variant Exon 2 of 29 NP_001366206.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AKAP9ENST00000356239.8 linkc.5752A>C p.Ser1918Arg missense_variant Exon 23 of 50 1 NM_005751.5 ENSP00000348573.3 Q99996-2

Frequencies

GnomAD3 genomes
AF:
0.0000330
AC:
5
AN:
151694
Hom.:
0
Cov.:
29
show subpopulations
Gnomad AFR
AF:
0.000121
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000616
AC:
9
AN:
1460842
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
726722
show subpopulations
Gnomad4 AFR exome
AF:
0.000120
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.0000663
GnomAD4 genome
AF:
0.0000330
AC:
5
AN:
151694
Hom.:
0
Cov.:
29
AF XY:
0.0000405
AC XY:
3
AN XY:
74050
show subpopulations
Gnomad4 AFR
AF:
0.000121
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Long QT syndrome 11 Uncertain:1
Dec 03, 2021
Fulgent Genetics, Fulgent Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Long QT syndrome Uncertain:1
Nov 27, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces serine, which is neutral and polar, with arginine, which is basic and polar, at codon 1918 of the AKAP9 protein (p.Ser1918Arg). This variant is present in population databases (no rsID available, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with AKAP9-related conditions. ClinVar contains an entry for this variant (Variation ID: 457113). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Cardiovascular phenotype Uncertain:1
Oct 09, 2022
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.S1918R variant (also known as c.5752A>C), located in coding exon 23 of the AKAP9 gene, results from an A to C substitution at nucleotide position 5752. The serine at codon 1918 is replaced by arginine, an amino acid with dissimilar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.75
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.49
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.31
.;T;T;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Uncertain
0.96
D;D;D;D
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.32
T;T;T;T
MetaSVM
Benign
-1.1
T
PrimateAI
Uncertain
0.54
T
PROVEAN
Benign
-0.72
N;.;.;.
REVEL
Benign
0.075
Sift
Benign
0.038
D;.;.;.
Sift4G
Benign
0.51
.;T;.;.
Vest4
0.61
MVP
0.53
MPC
0.27
ClinPred
0.80
D
GERP RS
5.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.24
gMVP
0.26

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: rs1000673132; hg19: chr7-91690724; API