Chains and heterogens:
PDB Chain Sequences:
>1ituA (A:) dffrdeaerimrdspvidghndlpwqlldmfnnrlqderanlttlagthtnipklragfv ggqfwsvytpcdtqnkdavrrtleqmdvvhrmcrmypetflyvtssagirqafregkvas ligvegghsidsslgvlralyqlgmryltlthscntpwadnwlvdtgdsepqsqglspfg qrvvkelnrlgvlidlahvsvatmkatlqlsrapvifshssaysvcasrrnvpddvlrlv kqtdslvmvnfynnyisctnkanlsqvadhldhikevagaravgfggdfdgvprvpegle dvskypdliaellrrnwteaevkgaladnllrvfeaveqasnltqapeeepipldqlggs crthygyss
>1ituB (B:) dffrdeaerimrdspvidghndlpwqlldmfnnrlqderanlttlagthtnipklragfv ggqfwsvytpcdtqnkdavrrtleqmdvvhrmcrmypetflyvtssagirqafregkvas ligvegghsidsslgvlralyqlgmryltlthscntpwadnwlvdtgdsepqsqglspfg qrvvkelnrlgvlidlahvsvatmkatlqlsrapvifshssaysvcasrrnvpddvlrlv kqtdslvmvnfynnyisctnkanlsqvadhldhikevagaravgfggdfdgvprvpegle dvskypdliaellrrnwteaevkgaladnllrvfeaveqasnltqapeeepipldqlggs crthygyss