Chains and heterogens:
PDB Chain Sequences:
>3drbA (A:) mpfsnshnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtg vdnpghpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggdd ldpnyvlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmt eaeqqqliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvism qkggnmkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklp nlgkhekfsevlkrlrlqkrgtggvdtaavggvfdvsnadrlgfsevelvqmvvdgvkll iemeqrleqgqaiddlmpaqk
>3drbA (A:) shnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtgvdnpg hpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggddldpny vlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmteaeqq qliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvismqkggn mkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklpnlgkh ekfsevlkrlrlqkrgtggvdtaavggvfdvsnadrlgfsevelvqmvvdgvklliemeq rleqgqaiddlmpaqk
>3drbB (B:) mpfsnshnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtg vdnpghpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggdd ldpnyvlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmt eaeqqqliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvism qkggnmkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklp nlgkhekfsevlkrlrlqkrgtggvdtaavggvfdvsnadrlgfsevelvqmvvdgvkll iemeqrleqgqaiddlmpaqk
>3drbB (B:) shnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtgvdnpg hpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggddldpny vlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmteaeqq qliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvismqkggn mkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklpnlgkh ekfsevlkrlrlqkrgtggvdtaavggvfdvsnadrlgfsevelvqmvvdgvklliemeq rleqgqaiddlmpaqk