258
Sodium dodecyl sulfate-polyacrylamide gel electrophoresis showed significant aldosterone binding at a molecular weight of approximately 50000 Dalton which was absent with 1 microM cold aldosterone , but not cortisol in the binding media.
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 None