rs144615758

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_StrongBP6_Very_Strong

The NM_005751.5(AKAP9):​c.2425A>G​(p.Ile809Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000492 in 1,612,990 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I809F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0027 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00027 ( 0 hom. )

Consequence

AKAP9
NM_005751.5 missense

Scores

18

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: -0.140

Publications

5 publications found
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]
AKAP9 Gene-Disease associations (from GenCC):
  • male infertility with azoospermia or oligozoospermia due to single gene mutation
    Inheritance: AR Classification: MODERATE Submitted by: King Faisal Specialist Hospital and Research Center
  • long QT syndrome 11
    Inheritance: AD Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • long QT syndrome
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -12 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0034397542).
BP6
Variant 7-92002342-A-G is Benign according to our data. Variant chr7-92002342-A-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 190506.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AKAP9NM_005751.5 linkc.2425A>G p.Ile809Val missense_variant Exon 8 of 50 ENST00000356239.8 NP_005742.4 Q99996-2Q6PJH3Q5GIA7
AKAP9NM_147185.3 linkc.2425A>G p.Ile809Val missense_variant Exon 8 of 50 NP_671714.1 Q99996-3Q6PJH3Q5GIA7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AKAP9ENST00000356239.8 linkc.2425A>G p.Ile809Val missense_variant Exon 8 of 50 1 NM_005751.5 ENSP00000348573.3 Q99996-2

Frequencies

GnomAD3 genomes
AF:
0.00267
AC:
406
AN:
151992
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00946
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.0000442
Gnomad OTH
AF:
0.00240
GnomAD2 exomes
AF:
0.000606
AC:
152
AN:
250678
AF XY:
0.000553
show subpopulations
Gnomad AFR exome
AF:
0.00879
Gnomad AMR exome
AF:
0.000203
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000266
AC:
388
AN:
1460880
Hom.:
0
Cov.:
35
AF XY:
0.000230
AC XY:
167
AN XY:
726732
show subpopulations
African (AFR)
AF:
0.00942
AC:
315
AN:
33442
American (AMR)
AF:
0.000246
AC:
11
AN:
44694
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26098
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39556
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86092
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53388
Middle Eastern (MID)
AF:
0.000694
AC:
4
AN:
5760
European-Non Finnish (NFE)
AF:
0.0000198
AC:
22
AN:
1111516
Other (OTH)
AF:
0.000564
AC:
34
AN:
60334
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.465
Heterozygous variant carriers
0
20
41
61
82
102
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00266
AC:
405
AN:
152110
Hom.:
1
Cov.:
32
AF XY:
0.00259
AC XY:
193
AN XY:
74386
show subpopulations
African (AFR)
AF:
0.00941
AC:
391
AN:
41562
American (AMR)
AF:
0.000393
AC:
6
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5186
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10610
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000442
AC:
3
AN:
67858
Other (OTH)
AF:
0.00237
AC:
5
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
27
54
81
108
135
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000930
Hom.:
0
Bravo
AF:
0.00284
ESP6500AA
AF:
0.00726
AC:
32
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.000758
AC:
92
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:2
Oct 25, 2016
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Mar 15, 2021
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: AKAP9 c.2425A>G (p.Ile809Val) results in a conservative amino acid change in the encoded protein sequence. Five of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00061 in 250678 control chromosomes, predominantly at a frequency of 0.0088 within the African or African-American subpopulation in the gnomAD database. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 2640-fold of the estimated maximal expected allele frequency for a pathogenic variant in AKAP9 causing Long QT Syndrome phenotype (3.3e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. To our knowledge, no occurrence of c.2425A>G in individuals affected with Long QT Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. Three ClinVar submitters (evaluation after 2014) cite the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. -

Long QT syndrome 11 Benign:2
Dec 05, 2021
Genome-Nilou Lab
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 09, 2021
Fulgent Genetics, Fulgent Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

AKAP9-related disorder Benign:1
Oct 28, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

not provided Benign:1
Jun 24, 2013
Biesecker Lab/Clinical Genomics Section, National Institutes of Health
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:research

- -

Long QT syndrome Benign:1
Jan 27, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Cardiovascular phenotype Benign:1
Dec 03, 2018
Ambry Genetics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.059
BayesDel_addAF
Benign
-0.70
T
BayesDel_noAF
Benign
-0.77
CADD
Benign
0.64
DANN
Benign
0.83
DEOGEN2
Benign
0.24
.;.;T;T
Eigen
Benign
-0.86
Eigen_PC
Benign
-0.78
FATHMM_MKL
Benign
0.041
N
LIST_S2
Benign
0.61
T;T;T;T
M_CAP
Benign
0.0062
T
MetaRNN
Benign
0.0034
T;T;T;T
MetaSVM
Benign
-0.92
T
PhyloP100
-0.14
PrimateAI
Benign
0.25
T
PROVEAN
Benign
-0.25
N;.;.;.
REVEL
Benign
0.031
Sift
Benign
0.55
T;.;.;.
Sift4G
Benign
0.40
.;T;T;.
Vest4
0.033
MVP
0.17
MPC
0.047
ClinPred
0.0045
T
GERP RS
1.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.014
gMVP
0.069
Mutation Taster
=100/0
polymorphism

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

Other links and lift over

dbSNP: rs144615758; hg19: chr7-91631656; API