Chains and heterogens:
PDB Chain Sequences:
>2z91A (A:) qllesgpdlvkpsqslsltctvtgysitsgynwhwirqfpgnklewmgyihyrgttnynt slksrisitrdssknqfflqlnsvttedtatyycacddfysdywgqgtivtvssakttpp svyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytlss svtvpsstwpsetvtcnvahpasstkvdkkivprdcts
>2z91A (A:) qllesgpdlvkpsqslsltctvtgysitsgynwhwirqfpgnklewmgyihyrgttnynt slksrisitrdssknqfflqlnsvttedtatyycacddfysdywgqgtivtvssakttpp svyplapgsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytlsssvtvps stwpsetvtcnvahpasstkvdkkivp
>2z91B (B:) elvmtqtpaimsaspgekvtmtcsasssvssvhwyqqksgtspkrwiydtsklpsgvpgr fsgsgsgtsysltissmeaedaatyycqqwssnpptfgagtklevkradaaptvsifpps seqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstltl tkdeyerhnsytceathktstspivksfnrnec
>2z91B (B:) elvmtqtpaimsaspgekvtmtcsasssvssvhwyqqksgtspkrwiydtsklpsgvpgr fsgsgsgtsysltissmeaedaatyycqqwssnpptfgagtklevkradaaptvsifpps seqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstltl tkdeyerhnsytceathktstspivksfnrn
>2z91C (C:) qllesgpdlvkpsqslsltctvtgysitsgynwhwirqfpgnklewmgyihyrgttnynt slksrisitrdssknqfflqlnsvttedtatyycacddfysdywgqgtivtvssakttpp svyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytlss svtvpsstwpsetvtcnvahpasstkvdkkivprdcts
>2z91C (C:) qllesgpdlvkpsqslsltctvtgysitsgynwhwirqfpgnklewmgyihyrgttnynt slksrisitrdssknqfflqlnsvttedtatyycacddfysdywgqgtivtvssakttpp svyplapgmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytlsssvtvpwp setvtcnvahpasstkvdkkivp
>2z91D (D:) elvmtqtpaimsaspgekvtmtcsasssvssvhwyqqksgtspkrwiydtsklpsgvpgr fsgsgsgtsysltissmeaedaatyycqqwssnpptfgagtklevkradaaptvsifpps seqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstltl tkdeyerhnsytceathktstspivksfnrnec
>2z91D (D:) elvmtqtpaimsaspgekvtmtcsasssvssvhwyqqksgtspkrwiydtsklpsgvpgr fsgsgsgtsysltissmeaedaatyycqqwssnpptfgagtklevkradaaptvsifpps seqltsggasvvcflnnfypkdinvkwkidgrqngvlnswtdqdskdstysmsstltltk deyerhnsytceathktspivksfnrne