Chains and heterogens:
PDB Chain Sequences:
>1otkA (A:) hgnqltaytlrlgdnclvlsqrlgewcghapeleidlalanigldllgqarnflsyaael agegdedtlaftrderqfsnlllveqpngnfadtiarqyfidawhvalftrlmesrdpql aaisakaikearyhlrfsrgwlerlgngtdvsgqkmqqainklwrftaelfdadeidial seegiavdprtlraaweaevfagineatlnvpqeqayrtggkkglhtehlgpmlaemqyl qrvlpgqqw
>1otkA (A:) hgnqltaytlrlgdnclvlsqrlgewcghapeleidlalanigldllgqarnflsyaael agegdedtlaftrderqfsnlllveqpngnfadtiarqyfidawhvalftrlmesrdpql aaisakaikearyhlrfsrgwlerlgngtdvsgqkmqqainklwrftaelfdadeidial seegiavdprtlraaweaevfagineatlnvpqeqayrtggkkglhtehlgpmlaemqyl qrvl
>1otkB (B:) hgnqltaytlrlgdnclvlsqrlgewcghapeleidlalanigldllgqarnflsyaael agegdedtlaftrderqfsnlllveqpngnfadtiarqyfidawhvalftrlmesrdpql aaisakaikearyhlrfsrgwlerlgngtdvsgqkmqqainklwrftaelfdadeidial seegiavdprtlraaweaevfagineatlnvpqeqayrtggkkglhtehlgpmlaemqyl qrvlpgqqw
>1otkB (B:) hgnqltaytlrlgdnclvlsqrlgewcghapeleidlalanigldllgqarnflsyaael agegdedtlaftrderqfsnlllveqpngnfadtiarqyfidawhvalftrlmesrdpql aaisakaikearyhlrfsrgwlerlgngtdvsgqkmqqainklwrftaelfdadeidial seegiavdprtlraaweaevfagineatlnvpqeqayrtggkkglhtehlgpmlaemqyl qrvl