Chains and heterogens:
PDB Chain Sequences:
>2f28A (A:) gsmaslpvlqkesvfqsgahayripallylpgqqsllafaeqraskkdehaelivlrrgd ydapthqvqwqaqevvaqarldghrsmnpcplydaqtgtlflffiaipgqvteqqqletr anvtrlcqvtstdhgrtwssprdltdaaigpayrewstfavgpghclqlndrarslvvpa yayrklhpiqrpipsafcflshdhgrtwarghfvaqdtlecqvaevetgeqrvvtlnars hlrarvqaqstndgldfqesqlvkklvepppqgcqgsvisfpsprsgpgspaqwllythp thswqradlgaylnprppapeawsepvllakgscaysdlqsmgtgpdgsplfgclyeand yeeivflmftlkqafpaeylpq
>2f28A (A:) pvlqkesvfqsgahayripallylpgqqsllafaeqrelivlrrgdydapthqvqwqaqe vvaqarldghrsmnpcplydaqtgtlflffiaipgqvteqqqletranvtrlcqvtstdh grtwssprdltdaaigpayrewstfavgpghclqlndrarslvvpayayrklhpiqrpip safcflshdhgrtwarghfvaqdtlecqvaeveqrvvtlnarshlrarvqaqstndgldf qesqlvkklvepppqgcqgsvisfpsprspaqwllythpthswqradlgaylnprppape awsepvllakgscaysdlqsmgtgpdgsplfgclyeandyeeivflmftlkqafpaey