NM_005751.5:c.2581T>C

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_005751.5(AKAP9):c.2581T>C(p.Tyr861His) variant causes a missense change. The variant allele was found at a frequency of 0.000598 in 1,610,938 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Y861S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00063 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00060 ( 0 hom. )

Consequence

AKAP9
NM_005751.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 6.03

Publications

9 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

AKAP9 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009356886).

BP6

Variant 7-92002498-T-C is Benign according to our data. Variant chr7-92002498-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 191515.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AKAP9	NM_005751.5 link	c.2581T>C	p.Tyr861His	missense_variant	Exon 8 of 50	ENST00000356239.8	NP_005742.4	Q99996-2Q6PJH3Q5GIA7
AKAP9	NM_147185.3 link	c.2581T>C	p.Tyr861His	missense_variant	Exon 8 of 50		NP_671714.1	Q99996-3Q6PJH3Q5GIA7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AKAP9	ENST00000356239.8 link	c.2581T>C	p.Tyr861His	missense_variant	Exon 8 of 50	1	NM_005751.5	ENSP00000348573.3		Q99996-2

Frequencies

GnomAD3 genomes

AF:

0.000638

AC:

AN:

152086

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000721

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00461

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000471

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000724

AC:

178

AN:

245788

AF XY:

0.000728

show subpopulations

Gnomad AFR exome

AF:

0.000127

Gnomad AMR exome

AF:

0.000382

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00473

Gnomad NFE exome

AF:

0.000532

Gnomad OTH exome

AF:

0.000335

GnomAD4 exome

AF:

0.000595

AC:

868

AN:

1458734

Hom.:

Cov.:

AF XY:

0.000608

AC XY:

441

AN XY:

725444

show subpopulations

African (AFR)

AF:

0.0000300

AC:

AN:

33350

American (AMR)

AF:

0.000293

AC:

AN:

44356

Ashkenazi Jewish (ASJ)

AF:

0.0000384

AC:

AN:

26038

East Asian (EAS)

AF:

0.00

AC:

AN:

39600

South Asian (SAS)

AF:

0.00

AC:

AN:

85206

European-Finnish (FIN)

AF:

0.00420

AC:

223

AN:

53158

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5754

European-Non Finnish (NFE)

AF:

0.000538

AC:

598

AN:

1110994

Other (OTH)

AF:

0.000531

AC:

AN:

60278

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

107

160

214

267

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<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:

0.000631

AC:

AN:

152204

Hom.:

Cov.:

AF XY:

0.000887

AC XY:

AN XY:

74418

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41576

American (AMR)

AF:

0.000654

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00461

AC:

AN:

10618

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000471

AC:

AN:

67920

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000353

Hom.:

Bravo

AF:

0.000393

TwinsUK

AF:

0.00

AC:

ALSPAC

AF:

0.00104

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000466

AC:

ExAC

AF:

0.000643

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000382

EpiControl

AF:

0.000415

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Benign:2

Jun 24, 2013

Biesecker Lab/Clinical Genomics Section, National Institutes of Health

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:research

- -

Nov 15, 2016

Stanford Center for Inherited Cardiovascular Disease, Stanford University

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:provider interpretation

Given the limited case data and the frequency in samples unselected for long QT (1% of Finnish individuals) we consider this a variant likely benign. Di Resta et al (2015) identified this variant in one individual with Brugada syndrome. No individual phenotypic information was available, but the cohort consisted of 91 unrelated patients with Brugada syndrome on the basis of either type I ECG, spontaneous or induced by flecainide or ajmaline infusion and who were SCN5A-negative. It is a non-conservative amino acid substitution of a hydrophobic Tyrosine with a hydrophilic Histidine at a conserved residue. In silico analysis with PolyPhen2 predicts the variant is probably damaging. No other variants have been reported in this region of AKAP9. However, ExAC constraint analyses of AKAP9 appears to be tolerant to missense variation (Z= -2.75), as well as loss of function/truncating variation (pLI=0.00). The variant is listed in dbSNP (rs61757557). The ClinSeq group reported it in 1 of 854 individuals not selected for long QT syndrome (Ng et al 2013). The variant was reported online in a total of 217 of 138,602 individuals in the Genome Aggregation Consortium Dataset (gnomAD; http://gnomad.broadinstitute.org/), which currently includes variant calls on >140,000 unrelated individuals of African, Asian, European, Latino, and Ashkenazi descent. It was seen in 129 of 13,003 Finnish individuals (0.99%), 71 of 61,939 European individuals (0.11%), and 12 of 17,980 Latino individuals (0.06%). -

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

Benign:1

Dec 21, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Cardiovascular phenotype

Benign:1

Apr 30, 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

Pathogenic

0.57

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.31

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.42

.;.;T;T

Eigen

Pathogenic

0.76

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.97

D;D;D;D

M_CAP

Benign

0.022

MetaRNN

Benign

0.0094

T;T;T;T

MetaSVM

Benign

-1.1

PhyloP100

6.0

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-1.7

N;.;.;.

REVEL

Benign

0.19

Sift

Pathogenic

0.0

D;.;.;.

Sift4G

Pathogenic

0.0

.;D;D;.

Vest4

0.44

MVP

0.60

MPC

0.39

ClinPred

0.11

GERP RS

5.8

Varity_R

0.35

gMVP

0.50

Mutation Taster

=68/32

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over