Chains and heterogens:
PDB Chain Sequences:
>1z25A (A:) smkaivvinlvkinkkiipdkiyvyrlfndpeeelqkegysiyrlayenvgividpenli iattkeleyegefipegeisfselrndyqsklvlrllkengigeyelskllrkfrkpktf gdykvipsvemsvikhdedfylvihiihqiqsmktlwelvnkdpkeleeflmthkenlml kdiasplktvykpcfeeytkkpkldhnqeivkywynyhierywntpeaklefyrkfgqvd lkqpailakfaskikknknykiyllpqlvvptynaeqlesdvakeileytklmpeerkel lenilaevdsdiidkslseievekiaqelenkirvrddkgnsvpisqlnvqksqlllwtn ysrkypvilpyevpekfrkireipmfiildsglladiqnfatnefrelvksmyyslakky nslakkarstneiglpfldfrgkekvitedlnsdkgiievveqvssfmkgkelglafiaa rnklssekfeeikrrlfnlnvisqvvnedtlknkrdkydrnrldlfvrhnllfqvlsklg vkyyvldyrfnydyiigidvapmkrsegyiggsavmfdsqgyirkivpikigeqrgesvd mneffkemvdkfkefnikldnkkilllrdgritnneeeglkyisemfdievvtmdviknh pvrafanmkmyfnlggaiyliphklkqakgtpipiklakkriikngkvekqsitrqdvld ifiltrlnygsisadmrlpapvhyahkfanairnewkikeeflaegflyfv
>1z25A (A:) smkaivvinlvkinkkiipdkiyvyrlysiyrlayenvgividpenliiattkeleyege fipegeisfselrndyqsklvlrllkengigeyelskllrkfrkpktfgdykvipsvems vikhdedfylvihiihqiqsmktlwelvnkdpkeleeflmthkenlmlkdiasplktvyk pcfeeytkkpkldhnqeivkywynyhierywntpeaklefyrkfgqvdlkqpailakfas knykiyllpqlvvptynaeqlakeileytklmpeerkellenilaevdsdiidkslseie vekiaqelenkirvrddkgnsvpisqllwtnysrkypvilpyevpekfrkireipmfiil dsglladiqnfatnefrelvksmyyekvitedlnsdkgiievveqvssfmkgkelglafi aarnklssekfeeikrrlfnlnvisqvvnedtlknkrdkydrnrldlfvrhnllfqvlsk lgvkyyvldyrfnydyiigidvapmkrsegyiggsavmfdsqgyirkivpikigeqrges vdmneffkemvdkfkefnikldnkkilllrdgritnneeeglkyisemfdievvtmdvik nhpvrafanmkmyfnlggaiyliphklkqakgtpipiklakkriikngkvekqsitrqdv ldifiltrlnygsisadmrlpapvhyahkfanairnewkikeeflaegflyfv