Chains and heterogens:
PDB Chain Sequences:
>1ubtL (L:) ssysgpivvdpvtrieghlrievevengkvknayssstlfrgleiilkgrdprdaqhftq rtcgvctythalastrcvdnavgvhipknatyirnlvlgaqylhdhivhfyhlhaldfvd vtaalkadpakaakvassisprkttaadlkavqdklktfvetgqlgpftnayflgghpay yldpetnliatahylealrlqvkaaramavfgaknphtqftvvggvtcydaltpqriaef ealwketkafvdevyipdllvvaaaykdwtqyggtdnfitfgefpkdeydlnsrffkpgv vfkrdfknikpfdkmqieehvrhswyegaearhpwkgqtqpkytdlhgddryswmkapry mgepmetgplaqvliaysqghpkvkavtdavlaklgvgpealfstlgrtaargietavia eyvgvmlqeykdniakgdnvicapwempkqaegvgfvnaprgglshwiriedgkignfql vvpstwtlgprcdknklspveasligtpvadakrpveilrtvhsfdpciacgvh
>1ubtS (S:) lmgprrpsvvylhnaectgcsesvlrafepyidtlildtlsldyhetimaaagdaaeaal eqavnsphgfiavveggiptaangiygkvanhtmldicsrilpkaqaviaygtcatfggv qaakpnptgakgvndalkhlgvkainiagcppnpynlvgtivyylknkaapeldslnrpt mffgqtvheqcprlphfdagefapsfeseearkgwclyelgckgpvtmnncpkikfnqtn wpvdaghpcigcsepdfwdamtpfyqn