19583
Regucalcin has been shown to play a multifunctional role in cell regulation ; maintaining of intracellular calcium homeostasis and suppressing of signal transduction , translational protein synthesis , nuclear deoxyribonucleic acid ( DNA ) and ribonucleic acid ( RNA ) synthesis , proliferation , and apoptosis in many cell types .
 Chemical: calcium
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: calcium 
Answer:
 Chemical: calcium