Chains and heterogens:
PDB Chain Sequences:
>1gp2A (A:) lsaedkaaverskmidrnlredgekaarevkllllgagesgkstivkqmkiiheagysee eckqykavvysntiqsiiaiiramgrlkidfgdaaraddarqlfvlagaaeegfmtaela gvikrlwkdsgvqacfnrsreyqlndsaayylndldriaqpnyiptqqdvlrtrvkttgi vethftfkdlhfkmfdvggqrserkkwihcfegvtaiifcvalsdydlvlaedeemnrmh esmklfdsicnnkwftdtsiilflnkkdlfeekikksplticypeyagsntyeeaaayiq cqfedlnkrkdtkeiythftcatdtknvqfvfdavtdviiknnl
>1gp2B (B:) seldqlrqeaeqlknqirdarkacadatlsqitnnidpvgriqmrtrrtlrghlakiyam hwgtdsrllvsasqdgkliiwdsyttnkvhaiplrsswvmtcayapsgnyvacggldnic siynlktregnvrvsrelaghtgylsccrflddnqivtssgdttcalwdietgqqtttft ghtgdvmslslapdtrlfvsgacdasaklwdvregmcrqtftghesdinaicffpngnaf atgsddatcrlfdlradqelmtyshdniicgitsvsfsksgrlllagyddfncnvwdalk adragvlaghdnrvsclgvtddgmavatgswdsflkiwn
>1gp2G (G:) siaqarklveqlkmeanidrikvskaaadlmayceahakedplltpvpasenpf