1224
While no obvious transmembrane regions were identified , several short hydrophobic amino acid stretches were found to be localized in and around the Pro II region , and these may be responsible for attachment of precursors to membranes .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None