Chains and heterogens:
PDB Chain Sequences:
>2xxdA (A:) smsyswtgalitpcspeeeklpinplsnsllryhnkvycttsksasqrakkvtfdrtqvl dahydsvlkdiklaaskvsarlltleeacqltpphsarskygfgakevrslsgravnhik svwkdlledpqtpipttimaknevfcvdpakggkkparlivypdlgvrvcekmalyditq klpqavmgasygfqyspaqrveyllkawaekkdpmgfsydtrcfdstvterdirteesiy qacslpeeartaihslterlyvggpmfnskgqtcgyrrcrasgvlttsmgntitcyvkal aackaagivaptmlvcgddlvvisesqgteedernlrafteamtrysappgdpprpeydl elitscssnvsvalgprgrrryyltrdpttplaraawetvrhspinswlgniiqyaptiw vrmvlmthffsilmvqdtldqnlnfemygsvysvnpldlpaiierlhgldafsmhtyshh eltrvasalrklgapplrvwksraravraslisrggkaavcgrylfnwavktklkltplp earlldlsswftvgagggdifhs