Chains and heterogens:
PDB Chain Sequences:
>1iknA (A:) pyveiieqpkqrgmrfrykcegrsagsipgerstdttkthptikingytgpgtvrislvt kdpphrphphelvgkdcrdgyyeadlcpdrsihsfqnlgiqcvkkrdleqaisqriqtnn npfhvpieeqrgdydlnavrlcfqvtvrdpagrpllltpvlshpifdnrapntaelkicr vnrnsgsclggdeifllcdkvqkedievyftgpgweargsfsqadvhrqvaivfrtppya dpslqapvrvsmqlrrpsdrelsepmefqylpdtddrhrieekrk
>1iknA (A:) pyveiieqpkqrgmrfrykcegrsagsipgerstdttkthptikingytgpgtvrislvt kdpphrphphelvgkdcrdgyyeadlcpdrsihsfqnlgiqcvkkrdleqaisqriqtnn npfhvpieeqrgdydlnavrlcfqvtvrdpagrpllltpvlshpifdnrataelkicrvn rnsgsclggdeifllcdkvqkedievyftgpgweargsfsqadvhrqvaivfrtppyadp slqapvrvsmqlrrpsdrelsepmefqylpdtddrhrieekrk
>1iknC (C:) asnlkivrmdrtagcvtggeeiyllcdkvqkddiqirfyeeeenggvwegfgdfsptdvh rqfaivfktpkykdvnitkpasvfvqlrrksdletsepkpflyypeikdkeev
>1iknD (D:) dgdsflhlaiiheekaltmevirqvkgdlaflnfqnnlqqtplhlavitnqpeiaeallg agcdpelrdfrgntplhlaceqgclasvgvltqscttphlhsilkatnynghtclhlasi hgylgivellvslgadvnaqepcngrtalhlavdlqnpdlvslllkcgadvnrvtyqgys pyqltwgrpstriqqqlgqltlenlqmlpesedeesydtes
>1iknD (D:) dgdsflhlaiiheekaltmevirlaflnfqnnlqqtplhlavitnqpeiaeallgagcdp elrdfrgntplhlaceqgclasvgvltqscttphlhsilkatnynghtclhlasihgylg ivellvslgadvnaqepcngrtalhlavdlqnpdlvslllkcgadvnrvtyqgyspyqlt wgrpstriqqqlgqltlenlqmlpesedeesydtes