1848
It is proposed that the appearance of these spots in two - dimensional analyses is related to the lipopolysaccharide composition of the cells from which the outer membrane is derived and reflects lipopolysaccharide - protein interactions or calcium - protein interactions .
 Anatomy: cells; Anatomy: outer membrane
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: cells; Anatomy: outer membrane