R5, R6, {HEAD ~ m}, and n are independent in {TAIL ~ each} of the ##STR38## subunits when p=2; or d.) 
independent in
R5 , R6 , { HEAD ~ m } , and n are independent in { TAIL ~ each } of the # # STR38 # # subunits when p=2 ; or d. )
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH