4853
The beta - sheet consisted of a single stranded anti - parallel beta - sheet ( b1 . 1 at Glu43 - Lys45 and b1 . 2 at Lys48 - Asn50 ) that was highly similar to the conserved sequences ( - CGXG - , - CCXXHDXC - and CXCEXXXXXC - ) of Apis mellifera ( bee ) phospholipases .
 Chemical: Glu43; Chemical: Lys45; Chemical: Lys48; Chemical: Asn50
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Glu43; Chemical: Lys45; Chemical: Lys48; Chemical: Asn50