Chains and heterogens:
PDB Chain Sequences:
>4pnp_ (-) mangytyedyqdtakwllshteqrpqvavicgsglgglvnkltqaqtfdyseipnfpest vpghagrlvfgilngracvmmqgrfhmyegypfwkvtfpvrvfrllgvetlvvtnaaggl npnfevgdimlirdhinlpgfsgenplrgpneerfgvrfpamsdaydrdmrqkahstwkq mgeqrelqegtyvmlggpnfetvaecrllrnlgadavgmstvpevivarhcglrvfgfsl itnkvimdtesqgkanheevleagkqaaqkleqfvsllmasipv