Chains and heterogens:
PDB Chain Sequences:
>2fffB (B:) dylyfttlaeaqermydylaqrdnvsakelkneatqkfyrdlaakeienggykitttidq kihsamqsavadygyllddgtgrvevgnvlmdnqtgailgfvggrnyqenqnnhafdtkr spasttkpllaygiaidqglmgsetilsnyptnfangnpimyanskgtgmmtlgealnys wnipaywtyrmlrengvdvkgymekmgyeipeygieslpmgggievtvaqhtngyqtlan ngvyhqkhviskieaadgrvvyeyqdkpvqvyskatatimqgllrevlssrvtttfksnl tslnptlanadwigktgttnqdenmwlmlstprltlggwighddnhslsrragysnnsny mahlvnaiqqaspsiwgnerfaldpsvvksevlkstgqkpgkvsvegkevevtgstvtsy wanksgapatsyrfaiggsdadyqnawssivgs