12721
We conclude that sodium phenylacetate treatment of K562 cells increases gamma-globin mRNA and induces cell maturation as judged by morphology without affecting the expression of the erythroid transcription factors , some of which are known to be involved in the regulation of beta-like globin genes .
 protein: erythroid transcription factors; DNA: beta-like globin genes; protein: transcription factors; cell line: K562 cells; RNA: gamma-globin mRNA
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: erythroid transcription factors, beta-like globin genes, transcription factors, K562 cells, gamma-globin mRNA 
Answer:
 protein: erythroid transcription factors; DNA: beta-like globin genes; protein: transcription factors; cell line: K562 cells; RNA: gamma-globin mRNA