3621
Previously we and others showed by targeted gene disruption that the zinc finger gene , erythroid Kruppel-like factor ( EKLF ), is required for expression of the beta-globin gene in mice , presumably through interaction with a high-affinity binding site in the proximal promoter .
 zinc finger gene, EKLF, high-affinity binding site, proximal promoter, beta-globin gene, erythroid Kruppel-like factor
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 zinc finger gene, EKLF, high-affinity binding site, proximal promoter, beta-globin gene, erythroid Kruppel-like factor