1917
Gel filtration , sedimentation velocity , and immunoprecipitation experiments revealed that beta4 is a component of a multisubunit complex ( AP - 4 ) that also contains the sigma4 polypeptide and two additional adaptor subunit homologs named mu4 ( mu - ARP2 ) and epsilon .
 GENE: AP - 4
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: AP - 4