Chains and heterogens:
PDB Chain Sequences:
>1sntA (A:) gsmaslpvlqkesvfqsgahayripallylpgqqsllafaeqraskkdehaelivlrrgd ydapthqvqwqaqevvaqarldghrsmnpcplydaqtgtlflffiaipgqvteqqqlqtr anvtrlcqvtstdhgrtwssprdltdaaigpayrewstfavgpghclqlndrarslvvpa yayrklhpiqrpipsafcflshdhgrtwarghfvaqdtlecqvaevetgeqrvvtlnars hlrarvqaqstndgldfqesqlvkklvepppqgcqgsvisfpsprsgpgspaqwllythp thswqradlgaylnprppapeawsepvllakgscaysdlqsmgtgpdgsplfgclyeand yeeivflmftlkqafpaeylpq
>1sntA (A:) slpvlqkesvfqsgahayripallylpgqqsllafaeqraelivlrrgdydapthqvqwq aqevvaqarldghrsmnpcplydaqtgtlflffiaipanvtrlcqvtstdhgrtwssprd ltdaaigpayrewstfavgpghclqlndrarslvvpayayrklhpiqrpipsafcflshd hgrtwarghfvaqdtlecqvaevetgeqrvvtlnarshlrarvqaqstndgldfqesqlv kklvepppqgcqgsvisfpsprspaqwllythpthswqradlgaylnprppapeawsepv llakgscaysdlqsmgtgpdgsplfgclyeandyeeivflmftlkqafpaey