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