rs202091548

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BP6

The NM_005751.5(AKAP9):​c.2230G>A​(p.Glu744Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000172 in 1,590,216 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000086 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

AKAP9
NM_005751.5 missense

Scores

3
5
10

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 7.40

Publications

4 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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3948721).
BP6
Variant 7-92002147-G-A is Benign according to our data. Variant chr7-92002147-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 191514.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
AKAP9NM_005751.5 linkc.2230G>A p.Glu744Lys missense_variant Exon 8 of 50 ENST00000356239.8 NP_005742.4
AKAP9NM_147185.3 linkc.2230G>A p.Glu744Lys missense_variant Exon 8 of 50 NP_671714.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
AKAP9ENST00000356239.8 linkc.2230G>A p.Glu744Lys missense_variant Exon 8 of 50 1 NM_005751.5 ENSP00000348573.3

Frequencies

GnomAD3 genomes
AF:
0.0000855
AC:
13
AN:
151988
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000177
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000785
AC:
18
AN:
229406
AF XY:
0.000104
show subpopulations
Gnomad AFR exome
AF:
0.0000664
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000158
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000181
AC:
260
AN:
1438228
Hom.:
0
Cov.:
35
AF XY:
0.000171
AC XY:
122
AN XY:
714864
show subpopulations
African (AFR)
AF:
0.0000626
AC:
2
AN:
31958
American (AMR)
AF:
0.00
AC:
0
AN:
39378
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25202
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39468
South Asian (SAS)
AF:
0.00
AC:
0
AN:
80430
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52858
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5636
European-Non Finnish (NFE)
AF:
0.000227
AC:
251
AN:
1103932
Other (OTH)
AF:
0.000118
AC:
7
AN:
59366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
14
28
43
57
71
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:
0.0000855
AC:
13
AN:
151988
Hom.:
0
Cov.:
32
AF XY:
0.0000404
AC XY:
3
AN XY:
74240
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41412
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000177
AC:
12
AN:
67924
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.548
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000141
Hom.:
0
Bravo
AF:
0.0000793
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000259
AC:
1
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000234
AC:
2
ExAC
AF:
0.0000742
AC:
9

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:2
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Long QT syndrome Uncertain:1
Mar 28, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 744 of the AKAP9 protein (p.Glu744Lys). This variant is present in population databases (rs202091548, 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: 191514). 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. -

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

- -

Cardiovascular phenotype Benign:1
Aug 30, 2022
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
0.26
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Benign
-0.14
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.41
.;.;T;T
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.85
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D;D;D;D
M_CAP
Benign
0.035
D
MetaRNN
Benign
0.39
T;T;T;T
MetaSVM
Benign
-0.49
T
PhyloP100
7.4
PrimateAI
Uncertain
0.66
T
PROVEAN
Benign
-2.3
N;.;.;.
REVEL
Benign
0.27
Sift
Uncertain
0.0060
D;.;.;.
Sift4G
Uncertain
0.0080
.;D;D;.
Vest4
0.60
MVP
0.71
MPC
0.37
ClinPred
0.18
T
GERP RS
5.7
Varity_R
0.28
gMVP
0.50
Mutation Taster
=71/29
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: rs202091548; hg19: chr7-91631461; API