Chains and heterogens:
PDB Chain Sequences:
>1a9oA (A:) mqngytyedyqdtakwllshteqrpqvavicgsglgglvnkltqaqtfdyseipnfpest vpghagrlvfgilngracvmmqgrfhmyegypfwkvtfpvrvfrllgvetlvvtnaaggl npnfevgdimlirdhinlpgfsgenplrgpneerfgvrfpamsdaydrdmrqkahstwkq mgeqrelqegtyvmlggpnfetvaecrllrnlgadavgmstvpevivarhcglrvfgfsl itnkvimdtesqgkanheevleagkqaaqkleqfvsllmasipvsghtg