In addition to the sequence variation between the various hh homologs, the vertebrate hedgehog proteins are apparently present naturally in a number of {HEAD ~ different forms}, including a pro form, a full length mature form, and {TAIL ~ several processed fragments} thereof 
including
In addition to the sequence variation between the various hh homologs , the vertebrate hedgehog proteins are apparently present naturally in a number of { HEAD ~ different forms } , including a pro form , a full length mature form , and { TAIL ~ several processed fragments } thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH