Chains and heterogens:
PDB Chain Sequences:
>2x9pA (A:) mrgshhhhhhgshdlpclnleppkmlklspllralqdrgpihrvrtpagdeawlvtrhae lkqllhderigrthpdppsaaqyvrspfldllisdadaesgrrqhaetrrlltplfsarr vlemqpkveeaadtlldafiaqgppgdlhgeltvpfaltvlcevigvppqrraelttlla giaklddregavraqddlfgyvaglvehkraepgpdiisrlndgeltedrvahlamgllf agldsvasimdngvvllaahpdqraaaladpdvmaraveevlrtaraggsvlppryased mefggvtiragdlvlfdlglpnfderaftgpeefdaartpnphltfghgiwhcigaplar lelrtmftklftrlpelrpelpveqlrlkegqlsggfaelrvvw
>2x9pA (A:) shdlpclnleppkmlklspllralqdrgpihrvrtpagdeawlvtrhaelkqllhderig rthpdppsaaqyvrspfldllisdadaesgrrqhaetrrlltplfsarrvlemqpkveea adtlldafiaqgppgdlhgeltvpfaltvlcevigvppqrraelttllagiaklddrega vraqddlfgyvaglvehkraepgpdiisrlndgeltedrvahlamgllfagldsvasimd ngvvllaahpdqraaaladpdvmaraveevlrtaraggsvlppryasedmefggvtirag dlvlfdlglpnfderaftgpeefdaartpnphltfghgiwhcigaplarlelrtmftklf trlpelrpelpveqlrlfaelrvvw