| GO term | GO name | GO namespace | GO def |
| GO:0005242 | inward rectifier potassium channel activity | molecular_function | Enables the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel. An inwardly rectifying current-voltage relation is one where at any given driving force the inward flow of K+ ions exceeds the outward flow for the opposite driving force. The inward-rectification is due to a voltage-dependent block of the channel pore by a specific ligand or ligands, and as a result the macroscopic conductance depends on the difference between membrane voltage and the K+ equilibrium potential rather than on membrane voltage itself. [GOC:cb, GOC:mah, PMID:14977398] |
| GO:0005516 | calmodulin binding | molecular_function | Binding to calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states. [GOC:krc] |
| GO:0016286 | small conductance calcium-activated potassium channel activity | molecular_function | Enables the transmembrane transfer of potassium by a channel with a unit conductance of 2 to 20 picoSiemens that opens in response to stimulus by internal calcium ions. Small conductance calcium-activated potassium channels are more sensitive to calcium than are large conductance calcium-activated potassium channels. Transport by a channel involves catalysis of facilitated diffusion of a solute (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel, without evidence for a carrier-mediated mechanism. [GOC:mtg_transport, OMIM:602754] |
| GO:0071805 | potassium ion transmembrane transport | biological_process | A process in which a potassium ion is transported from one side of a membrane to the other. [GOC:mah] |
| GO:0005737 | cytoplasm | cellular_component | The contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures. [ISBN:0198547684] |
| GO:0005886 | plasma membrane | cellular_component | The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins. [ISBN:0716731363] |
| GO:0043005 | neuron projection | cellular_component | A prolongation or process extending from a nerve cell, e.g. an axon or dendrite. [GOC:jl, http://www.cogsci.princeton.edu/~wn/] |
| GO:0043025 | neuronal cell body | cellular_component | The portion of a neuron that includes the nucleus, but excludes cell projections such as axons and dendrites. [GOC:go_curators] |