The complex then dissociates into fragment ions yielding valuable structural information about {TAIL ~ the peptide} such as {HEAD ~ amino acid sequencing information} 
The complex then dissociates into fragment ions yielding valuable structural information about { TAIL ~ the peptide } such as { HEAD ~ amino acid sequencing information }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD