Chains and heterogens:
PDB Chain Sequences:
>1bspA (A:) tqfdkqynsiikdiinngisdeefdvrtkwdsdgtpahtlsviskqmrfdnsevpilttk kvawktaikellwiwqlksndvndlnmmgvhiwdqwkqedgtighaygfqlgkknrslng ekvdqvdyllhqlknnpssrrhitmlwnpdeldamaltpcvyetqwyvkhgklhlevrar sndmalgnpfnvfqynvlqrmiaqvtgyelgeyifnigdchvytrhidnlkiqmereqfe apelwinpevkdfydftiddfklinykhgdkllfevav
>1bspA (A:) tqfdkqynsiikdiinngisdefdvrtkwdsdgtpahtlsviskqmrfdnsevpilttkk vawktaikellwiwqlksndvndlnmmgvhiwdqwkqedgtighaygfqlgkknrslnge kvdqvdyllhqlknnpssrrhitmlwnpdeldamaltpcvyetqwyvkhgklhlevrars ndmalgnpfnvfqynvlqrmiaqvtgyelgeyifnigdchvytrhidnlkiqmereqfea pelwinpevkdfydftiddfklinykhgdkllfevav
>1bspB (B:) tqfdkqynsiikdiinngisdeefdvrtkwdsdgtpahtlsviskqmrfdnsevpilttk kvawktaikellwiwqlksndvndlnmmgvhiwdqwkqedgtighaygfqlgkknrslng ekvdqvdyllhqlknnpssrrhitmlwnpdeldamaltpcvyetqwyvkhgklhlevrar sndmalgnpfnvfqynvlqrmiaqvtgyelgeyifnigdchvytrhidnlkiqmereqfe apelwinpevkdfydftiddfklinykhgdkllfevav