Chains and heterogens:
PDB Chain Sequences:
>1it6A (A:) lnidsiiqrllevrgskpgknvqlqeneirglclksreiflsqpilleleaplkicgdih gqyydllrlfeyggfppesnylflgdyvdrgkqsleticlllaykikypenffllrgnhe casinriygfydeckrryniklwktftdcfnclpiaaivdekifcchgglspdlqsmeqi rrimrptdvpdqgllcdllwsdpdkdvlgwgendrgvsftfgaevvakflhkhdldlicr ahqvvedgyeffakrqlvtlfsapnycgefdnagammsvdetlmcsfqilkpa
>1it6B (B:) lnidsiiqrllevrgskpgknvqlqeneirglclksreiflsqpilleleaplkicgdih gqyydllrlfeyggfppesnylflgdyvdrgkqsleticlllaykikypenffllrgnhe casinriygfydeckrryniklwktftdcfnclpiaaivdekifcchgglspdlqsmeqi rrimrptdvpdqgllcdllwsdpdkdvlgwgendrgvsftfgaevvakflhkhdldlicr ahqvvedgyeffakrqlvtlfsapnycgefdnagammsvdetlmcsfqilkpa