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Besides the evidence for regulation of the expression of the Rap1 protein in platelets from patients with heart failure , these findings constitute a new approach in favour of the regulation of platelet Ca2+ transport through the phosphorylation of the Rap1 protein .
 cell type: platelets; protein: Rap1 protein; protein: Rap1 protein
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 cell type: platelets; protein: Rap1 protein; protein: Rap1 protein