An antibody targeted to an antigen is brought into {HEAD ~ contact} with {TAIL ~ a body component} in situ 
with
An antibody targeted to an antigen is brought into { HEAD ~ contact } with { TAIL ~ a body component } in situ
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH