9845
The pre-leukemic phase of Friend erythroleukemia results from activation of the erythropoietin receptor ( EpoR ) by the spleen focus forming virus (SFFV) envelope glycoprotein , followed by the emergence of leukemic clones characterized by overexpression of Spi-1 and mutation of the p53 tumor suppressor gene .
 protein: Spi-1; DNA: p53 tumor suppressor gene; protein: EpoR; protein: erythropoietin receptor; protein: spleen focus forming virus (SFFV) envelope glycoprotein
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: Spi-1, p53 tumor suppressor gene, EpoR, erythropoietin receptor, spleen focus forming virus (SFFV) envelope glycoprotein 
Answer:
 protein: Spi-1; DNA: p53 tumor suppressor gene; protein: EpoR; protein: erythropoietin receptor; protein: spleen focus forming virus (SFFV) envelope glycoprotein