EOG8PRW4W GO:0016021 18/98 integral component of membrane cellular_component "The component of a membrane consisting of the gene products and protein complexes having at least some part of their peptide sequence embedded in the hydrophobic region of the membrane." [GOC:dos, GOC:go_curators] EOG8PRW4W GO:0005216 17/98 ion channel activity molecular_function "Enables the facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size)." [GOC:cy, GOC:mtg_transport, GOC:pr, ISBN:0815340729] EOG8PRW4W GO:0048060 1/98 negative gravitaxis biological_process "The directed movement of a motile cell or organism away from the source of gravity." [GOC:jid] EOG8PRW4W GO:0004623 1/98 phospholipase A2 activity molecular_function "Catalysis of the reaction: phosphatidylcholine + H2O = 1-acylglycerophosphocholine + a carboxylate." [EC:3.1.1.4] EOG8PRW4W GO:0009408 1/98 response to heat biological_process "Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a heat stimulus, a temperature stimulus above the optimal temperature for that organism." [GOC:lr] EOG8PRW4W GO:0006816 1/98 calcium ion transport biological_process "The directed movement of calcium (Ca) ions into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore." [GOC:ai] EOG8PRW4W GO:0005262 1/98 calcium channel activity molecular_function "Enables the selective, facilitated diffusion of a calcium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism." [GOC:mtg_transport, GOC:pr, ISBN:0815340729] EOG8PRW4W GO:0006812 1/98 cation transport biological_process "The directed movement of cations, atoms or small molecules with a net positive charge, into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore." [GOC:ai] EOG8PRW4W GO:0005261 1/98 cation channel activity molecular_function "Enables the selective, energy-independent passage of cations across a lipid bilayer down a concentration gradient." [GOC:def, GOC:dph, GOC:mtg_transport, GOC:pr, ISBN:0815340729] EOG8PRW4W GO:0034703 1/98 cation channel complex cellular_component "An ion channel complex through which cations pass." [GOC:mah] EOG8PRW4W GO:0070588 1/98 calcium ion transmembrane transport biological_process "A process in which a calcium ion is transported from one side of a membrane to the other by means of some agent such as a transporter or pore." [GOC:mah] EOG8PRW4W GO:0051290 1/98 protein heterotetramerization biological_process "The formation of a protein heterotetramer, a macromolecular structure consisting of four noncovalently associated subunits, of which not all are identical." [GOC:go_curators]