Chains and heterogens:
PDB Chain Sequences:
>1ek1A (A:) rvaafdldgvlalpsiagafrrseealalprdfllgayqtefpegpteqlmkgkitfsqw vplmdesyrksskacganlpenfsisqifsqamaarsinrpmlqaaialkkkgfttcivt nnwlddgdkrdslaqmmcelsqhfdfliescqvgmikpepqiynflldtlkakpnevvfl ddfgsnlkpardmgmvtilvhntasalrelekvtgtqfpeaplpvpcnpndvshgyvtvk pgirlhfvemgsgpalclchgfpeswfswryqipalaqagfrvlaidmkgygdsssppei eeyamellckemvtfldklgipqavfighdwagvmvwnmalfypervravaslntpfmpp dpdvspmkvirsipvfnyqlyfqepgvaeaeleknmsrtfksffrasdetgfiavhkate iggilvntpedpnlskitteeeiefyiqqfkktgfrgplnwyrnternwkwsckglgrki lvpalmvtaekdivlrpemsknmekwipflkrghiedcghwtqiekptevnqilikwlqt e
>1ek1A (A:) rvaafdldgvlalpsigpteqlmkgkitfsqwvplqifsqamaarsinrpmlqaaialkk kgfttcivtnnwlddgdkrdslaqmmcelsqhfdfliescqvgmikpepqiynflldtlk akpnevvflddfgsnlkpardmgmvtilvhntasalrelekvtgtqfpeaplpvpcnpnd vshgyvtvkpgirlhfvemgsgpalclchgfpeswfswryqipalaqagfrvlaidmkgy gdsssppeieeyamellckemvtfldklgipqavfighdwagvmvwnmalfypervrava slntpfmppdpdvspmkvirsipvfnyqlyfqepgvaeaeleknmsrtfksffrasdetg fiavhkateiggilvntpedpnlskitteeeiefyiqqfkktgfrgplnwyrnternwkw sckglgrkilvpalmvtaekdivlrpemsknmekwipflkrghiedcghwtqiekptevn qilikwlqte
>1ek1B (B:) rvaafdldgvlalpsiagafrrseealalprdfllgayqtefpegpteqlmkgkitfsqw vplmdesyrksskacganlpenfsisqifsqamaarsinrpmlqaaialkkkgfttcivt nnwlddgdkrdslaqmmcelsqhfdfliescqvgmikpepqiynflldtlkakpnevvfl ddfgsnlkpardmgmvtilvhntasalrelekvtgtqfpeaplpvpcnpndvshgyvtvk pgirlhfvemgsgpalclchgfpeswfswryqipalaqagfrvlaidmkgygdsssppei eeyamellckemvtfldklgipqavfighdwagvmvwnmalfypervravaslntpfmpp dpdvspmkvirsipvfnyqlyfqepgvaeaeleknmsrtfksffrasdetgfiavhkate iggilvntpedpnlskitteeeiefyiqqfkktgfrgplnwyrnternwkwsckglgrki lvpalmvtaekdivlrpemsknmekwipflkrghiedcghwtqiekptevnqilikwlqt e