Chains and heterogens:
PDB Chain Sequences:
>3dreA (A:) mpfsnshnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtg vdnpghpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggdd ldpnyvlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmt eaeqqqliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvism qkggnmkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklp nlgkhekfsevlkrlrlqkrgtggvdtaavggvfdvsnadrlgfsevelvqmvvdgvkll iemeqrleqgqaiddlmpaqk
>3dreA (A:) snshnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtgvdn pghpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggddldp nyvlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmteae qqqliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvismqkg gnmkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklpnlg khekfsevlkrlrlqkrgtggvdtaavggvfdvsnadrlgfsevelvqmvvdgvklliem eqrleqgqaiddlmpaqk
>3dreB (B:) mpfsnshnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtg vdnpghpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggdd ldpnyvlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmt eaeqqqliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvism qkggnmkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklp nlgkhekfsevlkrlrlqkrgtggvdtaavggvfdvsnadrlgfsevelvqmvvdgvkll iemeqrleqgqaiddlmpaqk
>3dreB (B:) nshnalklrfpaedefpdlsahnnhmakvltpelyaelrakstpsgftlddviqtgvdnp ghpyimtvgcvagdeesyevfkdlfdpiiedrhggykpsdehktdlnpdnlqggddldpn yvlssrvrtgrsirgfclpphcsrgerraieklavealssldgdlagryyalksmteaeq qqliddhflfdkpvsplllasgmardwpdargiwhndnktflvwvneedhlrvismqkgg nmkevftrfctgltqietlfkskdyefmwnphlgyiltcpsnlgtglragvhiklpnlgk hekfsevlkrlrlqkrvggvfdvsnadrlgfsevelvqmvvdgvklliemeqrleqgqai ddlmpaqk