In addition, {HEAD ~ Exodus} lacks a conserved tyrosine and {TAIL ~ a threonine} at position 47 and 51, respectively, that are present in all other human C C chemokines, including RANTES 
lacks
In addition , { HEAD ~ Exodus } lacks a conserved tyrosine and { TAIL ~ a threonine } at position 47 and 51 , respectively , that are present in all other human C C chemokines , including RANTES
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH 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 OTH OTH