Chains and heterogens:
PDB Chain Sequences:
>3bsfA (A:) megvmgqvekrpistivfivamqkeaqplinrlrlveevntpfpkevtwimfkgmykdln inivcpgkdstlgvesvgtvpaslvtyasilaiqpdliinagtaggfkakgacisdvyvv stvafhdrripvpvldiygvgmrntfptpnlikelnlkvgrlstgdsmdmsphdeesita ndatvkdmegaavayvadifkvptilikgvtdivdgnrptseeflenlaavtakldeslt kvidfisgkclsdl
>3bsfA (A:) rpistivfivamqkeaqplinrlrlveevntpfpkevtwimfkgmykdlninivcpgkds tlgvesvgtvpaslvtyasilaiqpdliinagtaggfkakgacisdvyvvstvafhdrri pvpvldiygvgmrntfptpnlikelnlkvgrlstgdsmdmsphdeesitandatvkdmeg aavayvadifkvptilikgvtdivdgnrptseeflenlaavtakldesltkvidfisgkc lsdl
>3bsfB (B:) megvmgqvekrpistivfivamqkeaqplinrlrlveevntpfpkevtwimfkgmykdln inivcpgkdstlgvesvgtvpaslvtyasilaiqpdliinagtaggfkakgacisdvyvv stvafhdrripvpvldiygvgmrntfptpnlikelnlkvgrlstgdsmdmsphdeesita ndatvkdmegaavayvadifkvptilikgvtdivdgnrptseeflenlaavtakldeslt kvidfisgkclsdl
>3bsfB (B:) rpistivfivamqkeaqplinrlrlveevntpfpkevtwimfkgmykdlninivcpgkds tlgvesvgtvpaslvtyasilaiqpdliinagtaggfkakgacisdvyvvstvafhdrri pvpvldiygvgmrntfptpnlikelnlkvgrlstgdsmdmsphdeesitandatvkdmeg aavayvadifkvptilikgvtdivdgnrptseeflenlaavtakldesltkvidfisgkc lsdl