Chains and heterogens:
PDB Chain Sequences:
>1quaA (A:) papqtsielflivdhsmyakynsnsskitttlkarvnimnaiysslnlvitlsgiemwsa adlitvqsssrntlklfaswretdllkrtsndnaqlltatnfngntvglaylktmcnsky svgliqdhsaipllmavtmahelghnlgmnhdgagcscatcimapvlssgpaksfsdcsk hdyqsfltihkpqclln