4420
Constitutively active MAPKK-1 fully activates ERK-2 and the transcription factor Elk-1 , but does not substitute for activated p21ras and synergize with calcium /calcineurin signals to induce NFAT .
 protein: MAPKK-1; protein: transcription factor; protein: NFAT; protein: Elk-1; protein: p21ras; protein: ERK-2; protein: /calcineurin
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: MAPKK-1, transcription factor, NFAT, Elk-1, p21ras, ERK-2, /calcineurin 
Answer:
 protein: MAPKK-1; protein: transcription factor; protein: NFAT; protein: Elk-1; protein: p21ras; protein: ERK-2; protein: /calcineurin