Chains and heterogens:
PDB Chain Sequences:
>1u16A (A:) masegdklmggrfvgstdpimeklnssiaydqrlsevdiqasiayakalekagiltktel ekilsglekiseewskgvfvvkqsdedihtanerrlkeligdiagklhtgrsrneqvvtd lklfmknslsiisthllqliktlveraaieidvilpgythlqkaqpirwsqfllshaval trdserlgevkkrinvlplgsgalagnpldidremlrselefasislnsmdaiserdfvv eflsvatlllihlskmaedliiystsefgfltlsdafstgsslmpqkknpdslelirska grvfgrlasilmvlkglpstynkdlqedkeavidvvdtltavlqvatgvistlqiskenm ekaltpemlatdlalylvrkgmpfrqahtasgkavhlaetkgiainnltledlksisplf ssdvsqvfnfvnsveqytalggtakssvttqieqlrelmkkqkeqahhhhhh
>1u16A (A:) stdpimeklnssiaydqrlsevdiqasiayakalekagiltktelekilsglekiseews kgvfvvkqsdedihtanerrlkeligdiagklhtgrsrneqvvtdlklfmknslsiisth llqliktlveraaieidvilpgythlqkaqpirwsqfllshavaltrdserlgevkkrin vlplgsgalagnpldidremlrselefasislnsmdaiserdfvveflsvatlllihlsk maedliiystsefgfltlsdafstgsslmpqkknpdslelirskagrvfgrlasilmvlk glpstynkdlqedkeavidvvdtltavlqvatgvistlqiskenmekaltpemlatdlal ylvrkgmpfrqahtasgkavhlaetkgiainnltledlksisplfssdvsqvfnfvnsve qytalggtakssvttqieqlrelmkkqke