Chains and heterogens:
PDB Chain Sequences:
>1cc2A (A:) gyvpavvigtgygaavsalrlgeagvqtlmlemgqlwnqpgpdgnifcgmlnpdkrsswf knrteaplgsflwldvvnrnidpyagvldrvnydqmsvyvgrgvgggslvnggmavepkr syfeeilprvdssemydryfpransmlrvnhidtkwfedtewykfarvsreqagkaglgt vfvpnvydfgymqreaagevpksalateviygnnhgkqsldktylaaalgtgkvtiqtlh qvktirqtkdggyaltveqkdtdgkllatkeiscrylflgagslgstellvrardtgtlp nlnsevgagwgpngnimtaranhmwnptgahqssipalgidawdnsdssvfaeiapmpag letwvslylaitknpqrgtfvydaatdraklnwtrdqnapavnaakalfdrinkangtiy rydlfgtqlkafaddfcyqplggcvlgkatddygrvagyknlyvtdgslipgsvgvnpfv titalaernveriikqdv