14636
All groups contain cysteine- and histidine-rich putative zinc finger domains and a serine-phenylalanine "SFS" domain similar to part of the large subunit of eukaryotic RNA polymerase II .
 cysteine- and histidine-rich putative zinc finger domains, eukaryotic RNA polymerase II, serine-phenylalanine "SFS" domain
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:
 cysteine- and histidine-rich putative zinc finger domains, eukaryotic RNA polymerase II, serine-phenylalanine "SFS" domain