The recombinant human erbB 3 protein shared identical electrophoretic mobility with {HEAD ~ the natural erbB} 3 product expressed in {TAIL ~ human breast tumor cell lines} 
The recombinant human erbB 3 protein shared identical electrophoretic mobility with { HEAD ~ the natural erbB } 3 product expressed in { TAIL ~ human breast tumor cell lines }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL