HCN2 Gene Summary [Human]
The protein encoded by this gene is a hyperpolarization-activated cation channel involved in the generation of native pacemaker activity in the heart and in the brain. The encoded protein is activated by cAMP and can produce a fast, large current. Defects in this gene were noted as a possible cause of some forms of epilepsy. [provided by RefSeq, Jan 2017]
Details
| Type | Protein Coding |
| Official Symbol | HCN2 |
| Official Name | hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2 [Source:HGNC Symbol;Acc:HGNC:4846] |
| Ensembl ID | ENSG00000099822 |
| Bio databases IDs | |
| Aliases | hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2 |
| Synonyms | BCNG-2, EIG17, FEB2, GEFSP11, HAC-1, hyperpolarization-activated, cyclic nucleotide-gated K+ 2, hyperpolarization activated cyclic nucleotide gated potassium and sodium channel 2, trls |
| Species | Human, Homo sapiens |
| Orthologies |
Protein Domains
A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human HCN2 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
- Ion transport protein
- Ion transport protein N-terminal
- intracellular cAMP activated cation channel
- protein binding
- identical protein binding
- ion channel
- Cyclic nucleotide-monophosphate binding domain
- PDZ-domain binding
- voltage-gated sodium channel
- Cyclic nucleotide-binding domain
- voltage-gated potassium channel
- binding protein
- CAP_ED
Pathways
Biological processes and signaling networks where the HCN2 gene in human plays a role, providing insight into its function and relevance in health or disease.
Top Findings
The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
- breast cancer
- diabetic nephropathy
- prostate cancer
- susceptibility to idiopathic generalized epilepsy type 17
- autosomal recessive susceptibility to idiopathic generalized epilepsy type 17
- tremor
- familial febrile seizures type 2
- ataxia
- absence seizure
- adult T-cell leukemia/lymphoma
role in cell
- quantity
- transmembrane potential
- response by
- action potential
- beating
- function
- afterhyperpolarization
Subcellular Expression
Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
- Plasma Membrane
- somatodendritic region
- cellular membrane
- synaptic vesicles
- perikaryon
- axons
- dendrites
- dendritic shafts
Gene Ontology Annotations
Describes the biological processes, cellular components, and molecular functions associated with the human HCN2 gene, providing context for its role in the cell.
Biological Process
Functions and activities the gene product is involved in
- potassium ion transmembrane transport
- regulation of membrane potential
- membrane depolarization involved in regulation of cardiac muscle cell action potential
- ammonium transmembrane transport
- cellular response to cGMP
- cellular response to cAMP
- cell-cell signaling
- sodium ion transmembrane transport
- regulation of membrane depolarization
Cellular Component
Where in the cell the gene product is active
- dendrite
- voltage-gated potassium channel complex
- axon
- plasma membrane
Molecular Function
What the gene product does at the molecular level
- voltage-gated potassium channel activity
- identical protein binding
- protein binding
- intracellular cAMP activated cation channel activity
- cAMP binding
- voltage-gated sodium channel activity