rs145862018

Variant names:

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2

The NM_005477.3(HCN4):c.3461G>A(p.Arg1154Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000521 in 1,611,376 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. R1154W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000059 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

HCN4
NM_005477.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:2

Conservation

PhyloP100: 3.91

Publications

5 publications found

Variant links:

Genes affected

HCN4 (HGNC:16882): (hyperpolarization activated cyclic nucleotide gated potassium channel 4) This gene encodes a member of the hyperpolarization-activated cyclic nucleotide-gated potassium channels. The encoded protein shows slow kinetics of activation and inactivation, and is necessary for the cardiac pacemaking process. This channel may also mediate responses to sour stimuli. Mutations in this gene have been linked to sick sinus syndrome 2, also known as atrial fibrillation with bradyarrhythmia or familial sinus bradycardia. Two pseudogenes have been identified on chromosome 15. [provided by RefSeq, Oct 2008]

HCN4 Gene-Disease associations (from GenCC):

sick sinus syndrome 2, autosomal dominant
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
Brugada syndrome 8
Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
familial sick sinus syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Brugada syndrome 1
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

HCN4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.1895214).

BP6

Variant 15-73322632-C-T is Benign according to our data. Variant chr15-73322632-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 191450.

BS2

High AC in GnomAd4 at 9 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005477.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HCN4	NM_005477.3	MANE Select	c.3461G>A	p.Arg1154Gln	missense	Exon 8 of 8	NP_005468.1	Q9Y3Q4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HCN4	ENST00000261917.4	TSL:1 MANE Select	c.3461G>A	p.Arg1154Gln	missense	Exon 8 of 8	ENSP00000261917.3	Q9Y3Q4

Frequencies

GnomAD3 genomes

AF:

0.0000591

AC:

AN:

152194

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000865

Gnomad EAS

AF:

0.000194

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000875

AC:

AN:

239906

AF XY:

0.0000536

show subpopulations

Gnomad AFR exome

AF:

0.000131

Gnomad AMR exome

AF:

0.0000294

Gnomad ASJ exome

AF:

0.000922

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000470

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000514

AC:

AN:

1459062

Hom.:

Cov.:

AF XY:

0.0000469

AC XY:

AN XY:

725564

show subpopulations

African (AFR)

AF:

0.0000897

AC:

AN:

33448

American (AMR)

AF:

0.0000225

AC:

AN:

44482

Ashkenazi Jewish (ASJ)

AF:

0.000652

AC:

AN:

26084

East Asian (EAS)

AF:

0.00

AC:

AN:

39634

South Asian (SAS)

AF:

0.0000700

AC:

AN:

85762

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52384

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5748

European-Non Finnish (NFE)

AF:

0.0000396

AC:

AN:

1111238

Other (OTH)

AF:

0.0000664

AC:

AN:

60282

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.460

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000591

AC:

AN:

152314

Hom.:

Cov.:

AF XY:

0.0000537

AC XY:

AN XY:

74480

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41576

American (AMR)

AF:

0.00

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.000865

AC:

AN:

3470

East Asian (EAS)

AF:

0.000194

AC:

AN:

5150

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

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:

0.0000958

Hom.:

Bravo

AF:

0.0000529

ESP6500AA

AF:

0.000228

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000742

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Brugada syndrome 8 (1)

Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.086

BayesDel_addAF

Benign

0.0035

BayesDel_noAF

Uncertain

0.020

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.33

Eigen

Benign

0.13

Eigen_PC

Benign

0.057

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.78

M_CAP

Pathogenic

0.29

MetaRNN

Benign

0.19

MetaSVM

Pathogenic

1.0

MutationAssessor

Benign

0.46

PhyloP100

3.9

PrimateAI

Uncertain

0.57

PROVEAN

Benign

-1.2

REVEL

Uncertain

0.53

Sift

Uncertain

0.0040

Sift4G

Benign

0.32

Polyphen

0.99

Vest4

0.13

MVP

0.87

MPC

0.30

ClinPred

0.057

GERP RS

3.4

Varity_R

0.20

gMVP

0.33

Mutation Taster

=96/4

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over