53120
A variety of cellular changes can trigger gating , depending on the ion channel , including changes in voltage across the cell membrane ( voltage-gated ion channel s ) , drugs or hormones interacting with the ion channel ( ligand-gated ion channel s ) , changes in temperature , stretching or deformation of the cell membrane , addition of a phosphate group to the ion channel ( phosphorylation ) , and interaction with other molecules in the cell ( e.g. , G protein s ) .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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