Chains and heterogens:
PDB Chain Sequences:
>2trcB (B:) mseldqlrqeaeqlknqirdarkacadatlsqitnnidpvgriqmrtrrtlrghlakiya mhwgtdsrlllsasqdgkliiwdsyttnkvhaiplrsswvmtcayapsgnyvacggldni csiynlktregnvrvsrelaghtgylsccrflddnqivtssgdttcalwdietgqqtttf tghtgdvmslslapdtrlfvsgacdasaklwdvregmcrqtftghesdinaicffpngna fatgsddatcrlfdlradqelmtyshdniicgitsvsfsksgrlllagyddfncnvwdal kadragvlaghdnrvsclgvtddgmavatgswdsflkiwn
>2trcG (G:) mpviniedltekdklkmevdqlkkevtlermlvskcceefrdyveersgedplvkgiped knpfkelk
>2trcP (P:) egqathtgpkgvindwrkfklesedgdsippskkeilrqmsspqsrddkdskermsrkms iqeyelihqdkedegclrkyrrqcmqdmhqklsfgprygfvyeletgeqfletiekeqkv ttivvniyedgvrgcdalnssleclaaeypmvkfckirasntgagdrfssdvlptllvyk ggelisnfisvaeqfaedffaadvesflneygllper