1549
To understand better the expression of the GP Ib-IX-V complex , studies were undertaken to define the essential genetic elements supporting the expression of the alpha-subunit of the complex ( GP Ib alpha ).
 protein: alpha-subunit; protein: GP Ib-IX-V complex; protein: GP Ib alpha; DNA: genetic elements; protein: Ib-IX-V; protein: GP; protein: GP
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:
 protein: alpha-subunit; protein: GP Ib-IX-V complex; protein: GP Ib alpha; DNA: genetic elements; protein: Ib-IX-V; protein: GP; protein: GP