Chains and heterogens:
PDB Chain Sequences:
>1bib_ (-) kdntvplkliallangefhsgeqlgetlgmsraainkhiqtlrdwgvdvftvpgkgyslp epiqllnakqilgqldggsvavlpvidstnqylldrigelksgdaciaeyqqagrgrrgr kwfspfganlylsmfwrleqgpaaaiglslvigivmaevlrklgadkvrvkwpndlylqd rklagilveltgktgdaaqivigaginmamrrveesvvnqgwitlqeaginldrntlaam lirelraalelfeqeglapylsrwekldnfinrpvkliigdkeifgisrgidkqgallle qdgiikpwmggeislr
>1bib_ (-) kdntvplkliallangefhsgeqlgetlgmsraainkhiqtlrdwgvdvftvpgkgyslp epiqllnakqilgqldggsvavlpvidstnqylldrigelksgdaciaeyqqagrgrspf ganlylsmfwrleqpaaaiglslvigivmaevlrklgadkvrvkwpndlylqdrklagil veltgaaqivigaginmamwitlqeaginldrntlaamlirelraalelfeqeglapyls rwekldnfinrpvkliigdkeifgisrgidkqgallleqdgiikpwmggeislr