| Unit 1 | ASN16 ASP17 ALA18 GLU19 GLY20 VAL21 TRP22 SER23 PRO24 ASP25 ILE26 GLU27 GLN28 SER29 PHE30 GLN31 GLU32 ALA33 LEU34 SER35 ILE36 TYR37 PRO38 GLY39 LYS40 MET41 TYR42 GLY43 ARG44 ASN45 GLU46 LEU47 ILE48 ALA49 ARG50 TYR51 ILE52 LYS53 LEU54 ARG55 THR56 GLY57 LYS58 THR59 ARG60 THR61 ARG62 LYS63 GLN64 VAL65 SER66 SER67 HIS68 ILE69 GLN70 VAL71 LEU72 ALA73 ARG74 |
| Unit 2 | ASP17 ALA18 GLU19 GLY20 VAL21 TRP22 SER23 PRO24 ASP25 ILE26 GLU27 GLN28 SER29 PHE30 GLN31 GLU32 ALA33 LEU34 SER35 ILE36 TYR37 PRO38 GLY39 LYS40 MET41 TYR42 GLY43 ARG44 ASN45 GLU46 LEU47 ILE48 ALA49 ARG50 TYR51 ILE52 LYS53 LEU54 ARG55 THR56 GLY57 LYS58 THR59 ARG60 THR61 ARG62 LYS63 GLN64 VAL65 SER66 SER67 HIS68 ILE69 GLN70 VAL71 LEU72 ALA73 ARG74 |
| Unit 3 | GLY20 VAL21 TRP22 SER23 PRO24 ASP25 ILE26 GLU27 GLN28 SER29 PHE30 GLN31 GLU32 ALA33 LEU34 SER35 ILE36 TYR37 PRO38 GLY39 LYS40 MET41 TYR42 GLY43 ARG44 ASN45 GLU46 LEU47 ILE48 ALA49 ARG50 TYR51 ILE52 LYS53 LEU54 ARG55 THR56 GLY57 LYS58 THR59 ARG60 THR61 ARG62 LYS63 GLN64 VAL65 SER66 SER67 HIS68 ILE69 GLN70 VAL71 LEU72 ALA73 ARG74 |