Chains and heterogens:
PDB Chain Sequences:
>3b1uA (A:) gplgspefmaqgtlirvtpeqpthavcvlgtltqldicssapedctsfsinaspgvvvdi ahsppakkkstgsstwpldpgvevtltmkaasgstgdqkvqisyygpktppvkallylta veislcaditrtgkvkptravkdqrtwtwgpcgqgaillvncdrdnlessamdceddevl dsedlqdmslmtlstktpkdfftnhtlvlhvarsemdkvrvfqatrgklsskcsvvlgpk wpshylmvpggkhnmdfyvealafpdtdfpglitltislldtsnlelpeavvfqdsvvfr vapwimtpntqppqevyacsifenedflksvttlamkakcklticpeeenmddqwmqdem eigyiqaphktlpvvfdsprnrglkefpikrvmgpdfgyvtrgpqtggisgldsfgnlev sppvtvrgkeyplgrilfgdscypsndsrqmhqalqdflsaqqvqapvklysdwlsvghv deflsfvpapdrkgfrlllasprscyklfqeqqneghgeallfegikkkkqqkiknilsn ktlrehnsfvercidwnrellkrelglaesdiidipqlfklkefskaeaffpnmvnmlvl gkhlgipkpfgpvingrccleekvcslleplglqctfindfftyhirhgevhcgtnvrrk pfsfkwwnmvp
>3b1uA (A:) gtlirvtpeqpthavcvlgtltqldicssapetsfsinaspgvvvditwpldpgvevtlt mkaasgstgdqkvqisyygpktppvkallyltaveislcaditrtgkqrtwtwgpcgqga illvncdrdnlessamdceddevldsedlqdmslmtlstktpkdfftnhtlvlhvarsem dkvrvfqatcsvvlgpkwpshylmvpggkhnmdfyvealafpdtdfpglitltislldts nlelpeavvfqdsvvfrvapwimtpntqppqevyacsifenedflksvttlamkakcklt icpeeenmddqwmqdemeigyiqaphktlpvvfdsprnrglkefpikrvmgpdfgyvtrg pqtggisgldsfgnlevsppvtvrgkeyplgrilfgdscypsndsrqmhqalqdflsaqq vqapvklysdwlsvghvdeflsfvpapdrkgfrlllasprscyklfqeqqneghgeallf egikkkkqqkiknilsnktlrehnsfvercidwnrellkrelglaesdiidipqlfklke fskaeaffpnmvnmlvlgkhlgipkpfgpvingrccleekvcslleplglqctfindfft yhirhgevhcgtnvrrkpfsfkwwnmvp