Exodus has {TAIL ~ a highly basic carboxy terminus}, more consistent with the MCP sub family than {HEAD ~ RANTES} 
Exodus has { TAIL ~ a highly basic carboxy terminus } , more consistent with the MCP sub family than { HEAD ~ RANTES }
OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD