Chains and heterogens:
PDB Chain Sequences:
>1p7kA (A:) elqmtqspaslsasvgetvtitcraseniysylawyqqkqgkspqllvynaktlaegvps rfsgsgsgtqfslkinslqpedfgsyycqhhygtpltfgagtklelkradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrnec
>1p7kB (B:) qvkllesgpelvkpgasvkmsckasgytftsyvmhwvkqkpgqglewigyinpyndgtky nekfkgkatltsdkssstaymelssltsedsavyycvrggyrpyyamdywgqgtsvtvss akttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsd lytlsssvtvpsstwpsetvtcnvahpasstkvdkkivprdcts
>1p7kB (B:) qvkllesgpelvkpgasvkmsckasgytftsyvmhwvkqkpgqglewigyinpyndgtky nekfkgkatltsdkssstaymelssltsedsavyycvrggyrpyyamdywgqgtsvtvss akttppsvyplapgsnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdlytl sssvtvpsstwpsetvtcnvahpasstkvdkkivprd
>1p7kH (H:) qvkllesgpelvkpgasvkmsckasgytftsyvmhwvkqkpgqglewigyinpyndgtky nekfkgkatltsdkssstaymelssltsedsavyycvrggyrpyyamdywgqgtsvtvss akttppsvyplapgsaaqtnsmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsd lytlsssvtvpsstwpsetvtcnvahpasstkvdkkivprdcts
>1p7kH (H:) qvkllesgpelvkpgasvkmsckasgytftsyvmhwvkqkpgqglewigyinpyndgtky nekfkgkatltsdkssstaymelssltsedsavyycvrggyrpyyamdywgqgtsvtvss akttppsvyplapgsaansmvtlgclvkgyfpepvtvtwnsgslssgvhtfpavlqsdly tlsssvtvpsstwpsetvtcnvahpasstkvdkkivprdc
>1p7kL (L:) elqmtqspaslsasvgetvtitcraseniysylawyqqkqgkspqllvynaktlaegvps rfsgsgsgtqfslkinslqpedfgsyycqhhygtpltfgagtklelkradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrnec
>1p7kL (L:) elqmtqspaslsasvgetvtitcraseniysylawyqqkqgkspqllvynaktlaegvps rfsgsgsgtqfslkinslqpedfgsyycqhhygtpltfgagtklelkradaaptvsifpp sseqltsggasvvcflnnfypkdinvkwkidgserqngvlnswtdqdskdstysmsstlt ltkdeyerhnsytceathktstspivksfnrne