Chains and heterogens:
PDB Chain Sequences:
>1yi1A (A:) tfisrfapdqprkgadilvealerqgvetvfaypggasmeihqaltrsssirnvlprheq ggvfaaegyarssgkpgiciatsgpgatnlvsgladalldsvplvaitgqvprrmigtda fqetpivevtrsitkhnylvmdvedipriieeafflatsgrpgpvlvdvpkdiqqqlaip nweqamrlpgymsrmpkppedshleqivrliseskkpvlyvgggclnssdelgrfveltg ipvastlmglgsypcddelslhmlgmhgtvyanyavehsdlllafgvrfddrvtgkleaf asrakivhididsaeigknktphvsvcgdvklalqgmnkvlenraeelkldfgvwrneln vqkqkfplsfktfgeaippqyaikvldeltdgkaiistgvgqhqmwaaqfynykkprqwl ssgglgamgfglpaaigasvanpdaivvdidgdgsfimnvqelatirvenlpvkvlllnn qhlgmvmqwedrfykanrahtflgdpaqedeifpnmllfaaacgipaarvtkkadlreai qtmldtpgpylldvicphqehvlpmipsggtfndvitegdgrlehhhhhh
>1yi1A (A:) tfisrfapdqprkgadilvealerqgvetvfaypggasmeihqaltrsssirnvlprheq ggvfaaegyarssgkpgiciatsgpgatnlvsgladalldsvplvaitgqvprrmigtda fqetpivevtrsitkhnylvmdvedipriieeafflatsgrpgpvlvdvpkdiqqqlaip nweqamrlpgymsrmpkppedshleqivrliseskkpvlyvgggclnssdelgrfveltg ipvastlmglgsypcddelslhmlgmhgtvyanyavehsdlllafgvrfddrvtgkleaf asrakivhididsaeigknktphvsvcgdvklalqgmnkvlenraeelkldfgvwrneln vqkqkfplsfktfgeaippqyaikvldeltdgkaiistgvgqhqmwaaqfynykkprqwl ssgglgamgfglpaaigasvanpdaivvdidgdgsfimnvqelatirvenlpvkvlllnn qhlgmvmqwedrfykanrahtflgdpaqedeifpnmllfaaacgipaarvtkkadlreai qtmldtpgpylldvicphqehvlpmipsggtfndvitegdgr