NM_005751.5:c.10664A>T

Variant names:

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_005751.5(AKAP9):c.10664A>T(p.Asp3555Val) variant causes a missense change. The variant allele was found at a frequency of 0.00117 in 1,612,836 control chromosomes in the GnomAD database, including 1 homozygotes. 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 0.00089 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0012 ( 1 hom. )

Consequence

AKAP9
NM_005751.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:9

Conservation

PhyloP100: 6.06

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 links:

CYP51A1 (HGNC:2649): (cytochrome P450 family 51 subfamily A member 1) This gene encodes a member of the cytochrome P450 superfamily of enzymes. The cytochrome P450 proteins are monooxygenases which catalyze many reactions involved in drug metabolism and synthesis of cholesterol, steroids and other lipids. This endoplasmic reticulum protein participates in the synthesis of cholesterol by catalyzing the removal of the 14alpha-methyl group from lanosterol. Homologous genes are found in all three eukaryotic phyla, fungi, plants, and animals, suggesting that this is one of the oldest cytochrome P450 genes. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

CYP51A1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.010754287).

BP6

Variant 7-92098165-A-T is Benign according to our data. Variant chr7-92098165-A-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 190514.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=6, Uncertain_significance=2}. Variant chr7-92098165-A-T is described in Lovd as [Likely_benign].

BS2

High AC in GnomAd4 at 135 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AKAP9	NM_005751.5 link	c.10664A>T	p.Asp3555Val	missense_variant	Exon 43 of 50	ENST00000356239.8	NP_005742.4	Q99996-2Q6PJH3Q5GIA7
AKAP9	NM_147185.3 link	c.10640A>T	p.Asp3547Val	missense_variant	Exon 43 of 50		NP_671714.1	Q99996-3Q6PJH3Q5GIA7
AKAP9	NM_001379277.1 link	c.5309A>T	p.Asp1770Val	missense_variant	Exon 22 of 29		NP_001366206.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AKAP9	ENST00000356239.8 link	c.10664A>T	p.Asp3555Val	missense_variant	Exon 43 of 50	1	NM_005751.5	ENSP00000348573.3		Q99996-2

Frequencies

GnomAD3 genomes

AF:

0.000887

AC:

135

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000145

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

Gnomad ASJ

AF:

0.00317

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00151

Gnomad OTH

AF:

0.00191

GnomAD3 exomes

AF:

0.000944

AC:

237

AN:

250928

Hom.:

AF XY:

0.000892

AC XY:

121

AN XY:

135656

show subpopulations

Gnomad AFR exome

AF:

0.0000617

Gnomad AMR exome

AF:

0.000695

Gnomad ASJ exome

AF:

0.00308

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00149

Gnomad OTH exome

AF:

0.00196

GnomAD4 exome

AF:

0.00120

AC:

1748

AN:

1460512

Hom.:

Cov.:

AF XY:

0.00121

AC XY:

876

AN XY:

726676

show subpopulations

Gnomad4 AFR exome

AF:

0.000329

Gnomad4 AMR exome

AF:

0.000828

Gnomad4 ASJ exome

AF:

0.00436

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000562

Gnomad4 NFE exome

AF:

0.00135

Gnomad4 OTH exome

AF:

0.00123

GnomAD4 genome

AF:

0.000886

AC:

135

AN:

152324

Hom.:

Cov.:

AF XY:

0.000873

AC XY:

AN XY:

74492

show subpopulations

Gnomad4 AFR

AF:

0.000144

Gnomad4 AMR

AF:

0.000719

Gnomad4 ASJ

AF:

0.00317

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00151

Gnomad4 OTH

AF:

0.00189

Alfa

AF:

0.00155

Hom.:

Bravo

AF:

0.00106

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.00

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.00128

AC:

ExAC

AF:

0.000857

AC:

104

EpiCase

AF:

0.00245

EpiControl

AF:

0.00202

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:9

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:3

Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Jun 01, 2021

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: AKAP9 c.10664A>T (p.Asp3555Val) results in a non-conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 0.00094 in 250928 control chromosomes. The observed variant frequency is approximately 283 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 benign. c.10664A>T has been reported in the literature as a VUS in sequencing studies of individuals affected with diseases of cardiovascular/metabolic etiology (example, Neubauer_2017). These report(s) do not provide unequivocal conclusions about association of the variant with Long QT Syndrome. At-least one co-occurrence with another pathogenic variant has been observed at our laboratory (PKP2 c.2489+1G>A), providing supporting evidence for a benign role. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation (likely benign, n=3; VUS, n=1). Based on the evidence outlined above, the variant was classified as likely benign. -

Mar 05, 2012

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. -

not provided

Benign:3

Jun 24, 2013

Biesecker Lab/Clinical Genomics Section, National Institutes of Health

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: research

- -

Clinical Genetics, Academic Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Long QT syndrome

Uncertain:1Benign:1

Jan 08, 2024

Dept of Medical Biology, Uskudar University

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: research

Criteria: BS1, PP3 -

Jan 27, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Congenital long QT syndrome

Uncertain:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Long QT syndrome 11

Benign:1

Jan 18, 2016

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Cardiovascular phenotype

Benign:1

May 06, 2019

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

0.31

BayesDel_addAF

Benign

-0.36

BayesDel_noAF

Benign

-0.32

CADD

Uncertain

DANN

Benign

0.97

DEOGEN2

Benign

0.39

.;T;.

Eigen

Uncertain

0.62

Eigen_PC

Uncertain

0.60

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

D;D;D

M_CAP

Benign

0.022

MetaRNN

Benign

0.011

T;T;T

MetaSVM

Benign

-1.2

PrimateAI

Benign

0.34

PROVEAN

Pathogenic

-4.6

D;.;D

REVEL

Benign

0.24

Sift

Uncertain

0.0020

D;.;D

Sift4G

Uncertain

0.049

.;.;D

Vest4

0.53

MVP

0.52

MPC

0.40

ClinPred

0.10

GERP RS

4.7

Varity_R

0.42

gMVP

0.28

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over