While {HEAD ~ Exodus} has many of {TAIL ~ the conserved amino acid features} of the other human C C chemokines, there are several unusual characteristics of Exodus that are worth noting 
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While { HEAD ~ Exodus } has many of { TAIL ~ the conserved amino acid features } of the other human C C chemokines , there are several unusual characteristics of Exodus that are worth noting
OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH