| Unit 1 | SER53 PRO54 SER55 SER56 GLY57 LEU58 GLY59 SER60 ILE61 THR62 ASP63 LEU64 LEU65 ASN66 ASN67 ILE68 LEU69 SER70 VAL71 ALA72 ASN73 GLN74 ILE75 ILE76 TYR77 ASN78 SER79 ALA80 VAL81 ALA82 LEU83 PRO84 LEU85 GLN86 LEU87 ASP88 THR89 LEU90 GLU91 SER92 THR93 LEU94 LEU95 THR96 ALA97 ILE98 LYS99 SER100 LEU101 GLN102 |
| Unit 2 | SER56 GLY57 LEU58 GLY59 SER60 ILE61 THR62 ASP63 LEU64 LEU65 ASN66 ASN67 ILE68 LEU69 SER70 VAL71 ALA72 ASN73 GLN74 ILE75 ILE76 TYR77 ASN78 SER79 ALA80 VAL81 ALA82 LEU83 PRO84 LEU85 GLN86 LEU87 ASP88 THR89 LEU90 GLU91 SER92 THR93 LEU94 LEU95 THR96 ALA97 ILE98 LYS99 SER100 LEU101 GLN102 THR103 |
| Unit 3 | SER53 PRO54 SER55 SER56 GLY57 LEU58 GLY59 SER60 ILE61 THR62 ASP63 LEU64 LEU65 ASN66 ASN67 ILE68 LEU69 SER70 VAL71 ALA72 ASN73 GLN74 ILE75 ILE76 TYR77 ASN78 SER79 ALA80 VAL81 ALA82 LEU83 PRO84 LEU85 GLN86 LEU87 ASP88 THR89 LEU90 GLU91 SER92 THR93 LEU94 LEU95 THR96 ALA97 ILE98 LYS99 SER100 LEU101 GLN102 |
| Unit 4 | LEU58 GLY59 SER60 ILE61 THR62 ASP63 LEU64 LEU65 ASN66 ASN67 ILE68 LEU69 SER70 VAL71 ALA72 ASN73 GLN74 ILE75 ILE76 TYR77 ASN78 SER79 ALA80 VAL81 ALA82 LEU83 PRO84 LEU85 GLN86 LEU87 ASP88 THR89 LEU90 GLU91 SER92 THR93 LEU94 LEU95 THR96 ALA97 ILE98 LYS99 SER100 LEU101 GLN102 THR103 SER104 ASP105 LYS106 LEU107 GLU108 |