1825
Point mutation of the c-Myb site within the intact 2.3-kb LCR severely attenuated enhancer activity in transfections and LCR activity in transgenic thymocytes .
 cell type: thymocytes; cell line: transgenic thymocytes; protein: 2.3-kb LCR; DNA: c-Myb site; DNA: LCR; protein: c-Myb
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: thymocytes; cell line: transgenic thymocytes; protein: 2.3-kb LCR; DNA: c-Myb site; DNA: LCR; protein: c-Myb