5-45695966-G-A

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 1P and 8B. PP2BP4_ModerateBP6_ModerateBS2

The NM_021072.4(HCN1):​c.128C>T​(p.Pro43Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000702 in 1,324,668 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 Likely benign (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P43Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000077 ( 0 hom. )

Consequence

HCN1
NM_021072.4 missense

Scores

2
5
12

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.32
Variant links:
Genes affected
HCN1 (HGNC:4845): (hyperpolarization activated cyclic nucleotide gated potassium channel 1) The membrane protein encoded by this gene is a hyperpolarization-activated cation channel that contributes to the native pacemaker currents in heart and neurons. The encoded protein can homodimerize or heterodimerize with other pore-forming subunits to form a potassium channel. This channel may act as a receptor for sour tastes. [provided by RefSeq, Oct 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -7 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), HCN1. . Gene score misZ 3.6647 (greater than the threshold 3.09). Trascript score misZ 3.2427 (greater than threshold 3.09). GenCC has associacion of gene with generalized epilepsy with febrile seizures plus, type 10, undetermined early-onset epileptic encephalopathy, developmental and epileptic encephalopathy, 24, generalized epilepsy with febrile seizures plus.
BP4
Computational evidence support a benign effect (MetaRNN=0.19371226).
BP6
Variant 5-45695966-G-A is Benign according to our data. Variant chr5-45695966-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 404096.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAdExome4 at 91 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
HCN1NM_021072.4 linkuse as main transcriptc.128C>T p.Pro43Leu missense_variant 1/8 ENST00000303230.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
HCN1ENST00000303230.6 linkuse as main transcriptc.128C>T p.Pro43Leu missense_variant 1/81 NM_021072.4 P2
HCN1ENST00000673735.1 linkuse as main transcriptc.128C>T p.Pro43Leu missense_variant 1/9 A2
HCN1ENST00000634658.1 linkuse as main transcriptc.128C>T p.Pro43Leu missense_variant 1/23

Frequencies

GnomAD3 genomes
AF:
0.0000134
AC:
2
AN:
149498
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000297
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000431
AC:
1
AN:
23184
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
14862
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000933
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000774
AC:
91
AN:
1175170
Hom.:
0
Cov.:
32
AF XY:
0.0000733
AC XY:
42
AN XY:
573228
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000910
Gnomad4 OTH exome
AF:
0.0000423
GnomAD4 genome
AF:
0.0000134
AC:
2
AN:
149498
Hom.:
0
Cov.:
32
AF XY:
0.0000274
AC XY:
2
AN XY:
72898
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000297
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Early infantile epileptic encephalopathy with suppression bursts Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 17, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.096
BayesDel_addAF
Uncertain
0.037
T
BayesDel_noAF
Benign
-0.18
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.23
T;T
Eigen
Benign
-0.67
Eigen_PC
Benign
-0.58
FATHMM_MKL
Benign
0.095
N
LIST_S2
Benign
0.63
T;T
M_CAP
Pathogenic
0.98
D
MetaRNN
Benign
0.19
T;T
MetaSVM
Uncertain
0.0068
D
MutationAssessor
Benign
-0.34
N;.
MutationTaster
Benign
1.0
N
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-1.9
N;.
REVEL
Benign
0.29
Sift
Uncertain
0.013
D;.
Sift4G
Uncertain
0.0080
D;T
Polyphen
0.043
B;.
Vest4
0.16
MutPred
0.16
Loss of relative solvent accessibility (P = 0.0676);Loss of relative solvent accessibility (P = 0.0676);
MVP
0.61
MPC
2.4
ClinPred
0.19
T
GERP RS
3.0
Varity_R
0.14
gMVP
0.21

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.

Other links and lift over

dbSNP: rs1060500095; hg19: chr5-45696068; API