6132
A 768-bp upstream negative regulatory region has been identified that conferred lymphocyte-specific negative regulation in a heterologous system with a 244-bp deoxycytidine kinase core promoter .
 DNA: 768-bp upstream negative regulatory region; DNA: 244-bp deoxycytidine kinase core promoter
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: 768-bp upstream negative regulatory region, 244-bp deoxycytidine kinase core promoter 
Answer:
 DNA: 768-bp upstream negative regulatory region; DNA: 244-bp deoxycytidine kinase core promoter