The variant 1, further comprising {HEAD ~ a mutation} selected from {TAIL ~ the group} consisting of: 
selected from
The variant 1 , further comprising { HEAD ~ a mutation } selected from { TAIL ~ the group } consisting of :
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH