Chains and heterogens:
PDB Chain Sequences:
>1tk9A (A:) mslinlvekewqehqkivqaseilkgqiakvgellceclkkggkilicgnggsaadaqhf aaelsgrykkerkalagialttdtsalsaigndygfefvfsrqvealgnekdvligists gkspnvlealkkakelnmlclglsgkgggmmnklcdhnlvvpsddtariqemhiliihtl cqiidesf
>1tk9B (B:) mslinlvekewqehqkivqaseilkgqiakvgellceclkkggkilicgnggsaadaqhf aaelsgrykkerkalagialttdtsalsaigndygfefvfsrqvealgnekdvligists gkspnvlealkkakelnmlclglsgkgggmmnklcdhnlvvpsddtariqemhiliihtl cqiidesf
>1tk9C (C:) mslinlvekewqehqkivqaseilkgqiakvgellceclkkggkilicgnggsaadaqhf aaelsgrykkerkalagialttdtsalsaigndygfefvfsrqvealgnekdvligists gkspnvlealkkakelnmlclglsgkgggmmnklcdhnlvvpsddtariqemhiliihtl cqiidesf
>1tk9D (D:) mslinlvekewqehqkivqaseilkgqiakvgellceclkkggkilicgnggsaadaqhf aaelsgrykkerkalagialttdtsalsaigndygfefvfsrqvealgnekdvligists gkspnvlealkkakelnmlclglsgkgggmmnklcdhnlvvpsddtariqemhiliihtl cqiidesf