Chains and heterogens:
PDB Chain Sequences:
>1g51A (A:) mrrthyagslrethvgeevvlegwvnrrrdlgglifldlrdreglvqlvahpaspayata ervrpewvvrakglvrlrpepnprlatgrvevelsalevlaeaktppfpvdagwrgeeek easeelrlkyryldlrrrrmqenlrlrhrvikaiwdfldregfvqvetpfltkstpegar dflvpyrhepglfyalpqspqlfkqmlmvagldryfqiarcfrdedlradrqpdftqldl emsfvevedvlelnerlmahvfrealgvelplpfprlsyeeamerygsdkpdlrfglelk evgplfrqsgfrvfqeaesvkalalpkalsrkevaeleevakrhkaqglawarveeggfs ggvakflepvreallqatearpgdtllfvagprkvaatalgavrlraadllglkregfrf lwvvdfpllewdeeeeawtymhhpftsphpedlpllekdpgrvralaydlvlngvevggg sirihdprlqarvfrllgigeeeqrekfgfflealeygapphggiawgldrllalmtgsp sireviafpknkegkdpltgapspvpeeqlrelglmvvrp
>1g51B (B:) mrrthyagslrethvgeevvlegwvnrrrdlgglifldlrdreglvqlvahpaspayata ervrpewvvrakglvrlrpepnprlatgrvevelsalevlaeaktppfpvdagwrgeeek easeelrlkyryldlrrrrmqenlrlrhrvikaiwdfldregfvqvetpfltkstpegar dflvpyrhepglfyalpqspqlfkqmlmvagldryfqiarcfrdedlradrqpdftqldl emsfvevedvlelnerlmahvfrealgvelplpfprlsyeeamerygsdkpdlrfglelk evgplfrqsgfrvfqeaesvkalalpkalsrkevaeleevakrhkaqglawarveeggfs ggvakflepvreallqatearpgdtllfvagprkvaatalgavrlraadllglkregfrf lwvvdfpllewdeeeeawtymhhpftsphpedlpllekdpgrvralaydlvlngvevggg sirihdprlqarvfrllgigeeeqrekfgfflealeygapphggiawgldrllalmtgsp sireviafpknkegkdpltgapspvpeeqlrelglmvvrp