Chains and heterogens:
PDB Chain Sequences:
>1crkA (A:) tvhekrklfppsadypdlrkhnncmaecltpaiyaklrdkltpngysldqciqtgvdnpg hpfiktvgmvagdeesyevfaeifdpvikarhngydprtmkhhtdldaskithgqfdery vlssrvrtgrsirglslppacsraerrevenvvvtalaglkgdlsgkyysltnmserdqq qliddhflfdkpvsplltcagmardwpdargiwhnndktflvwineedhtrvismekggn mkrvferfcrglkeverlikergwefmwnerlgyvltcpsnlgtglragvhvklprlskd prfpkilenlrlqkrgtggvdtaavadvydisnldrmgrsevelvqividgvnylvdcek klekgqdikvppplpqfgrk
>1crkB (B:) tvhekrklfppsadypdlrkhnncmaecltpaiyaklrdkltpngysldqciqtgvdnpg hpfiktvgmvagdeesyevfaeifdpvikarhngydprtmkhhtdldaskithgqfdery vlssrvrtgrsirglslppacsraerrevenvvvtalaglkgdlsgkyysltnmserdqq qliddhflfdkpvsplltcagmardwpdargiwhnndktflvwineedhtrvismekggn mkrvferfcrglkeverlikergwefmwnerlgyvltcpsnlgtglragvhvklprlskd prfpkilenlrlqkrgtggvdtaavadvydisnldrmgrsevelvqividgvnylvdcek klekgqdikvppplpqfgrk
>1crkC (C:) tvhekrklfppsadypdlrkhnncmaecltpaiyaklrdkltpngysldqciqtgvdnpg hpfiktvgmvagdeesyevfaeifdpvikarhngydprtmkhhtdldaskithgqfdery vlssrvrtgrsirglslppacsraerrevenvvvtalaglkgdlsgkyysltnmserdqq qliddhflfdkpvsplltcagmardwpdargiwhnndktflvwineedhtrvismekggn mkrvferfcrglkeverlikergwefmwnerlgyvltcpsnlgtglragvhvklprlskd prfpkilenlrlqkrgtggvdtaavadvydisnldrmgrsevelvqividgvnylvdcek klekgqdikvppplpqfgrk
>1crkD (D:) tvhekrklfppsadypdlrkhnncmaecltpaiyaklrdkltpngysldqciqtgvdnpg hpfiktvgmvagdeesyevfaeifdpvikarhngydprtmkhhtdldaskithgqfdery vlssrvrtgrsirglslppacsraerrevenvvvtalaglkgdlsgkyysltnmserdqq qliddhflfdkpvsplltcagmardwpdargiwhnndktflvwineedhtrvismekggn mkrvferfcrglkeverlikergwefmwnerlgyvltcpsnlgtglragvhvklprlskd prfpkilenlrlqkrgtggvdtaavadvydisnldrmgrsevelvqividgvnylvdcek klekgqdikvppplpqfgrk