Chains and heterogens:
PDB Chain Sequences:
>2chnA (A:) qnvslqpppqqlivqnktidlpavyqlnggeeanphavkvlkellsgkqsskkgmlisig ekgdksvrkysrqipdhkegyylsvnekeivlagndergtyyalqtfaqllkdgklpeve ikdypsvryrgvvegfygtpwshqarlsqlkfygknkmntyiygpkddpyhsapnwrlpy pdkeaaqlqelvavanenevdfvwaihpgqdikwnkedrdlllakfekmyqlgvrsfavf fddisgegtnpqkqaellnyidekfaqvkpdinqlvmcpteynkswsnpngnylttlgdk lnpsiqimwtgdrvisditrdgiswinerikrpayiwwnfpvsdyvrdhlllgpvygndt tiakemsgfvtnpmehaesskiaiysvasyawnpakydtwqtwkdairtilpsaaeelec famhnsdlgpnghgyrreesmdiqpaaerflkafkegknydkadfetlqytfermkesad illmntenkpliveitpwvhqfkltaemgeevlkmvegrnesyflrkynhvkalqqqmfy idqtsnqnpyqpgvktatrvikplidrtfatvvkffnqkfnahldattdymphkmisnve qiknlplqvkanrvlispanevvkwaagnsveieldaiypgeniqinfgkdapctwgrle istdakewktvdlkqkesrlsaglqkapvkfvrftnvsdeeqqvylrqfvltiekk
>2chnA (A:) slqpppqqlivqnktidlpavyqlnggeeanphavkvlkellgmlisigekgdksvrkys rqipdhkegyylsvnekeivlagndergtyyalqtfaqllkdgklpeveikdypsvryrg vvegfygtpwshqarlsqlkfygknkmntyiygpkddpyhsapnwrlpypdkeaaqlqel vavanenevdfvwaihpgqdikwnkedrdlllakfekmyqlgvrsfavffddisgegtnp qkqaellnyidekfaqvkpdinqlvmcpteynkswsnpngnylttlgdklnpsiqimwtg drvisditrdgiswinerikrpayiwwnfpvsdyvrdhlllgpvygndttiakemsgfvt npmehaesskiaiysvasyawnpakydtwqtwkdairtilpsaaeelecfamhnsdlgpn ghgyrreesmdiqpaaerflkafkegknydkadfetlqytfermkesadillmntenkpl iveitpwvhqfkltaemgeevlkmvegrnesyflrkynhvkalqqqmfyidqtsnqnpyq pgvktatrvikplidrtfatvvkffnqkfnahldattdymphkmnlplqvkanrvlispv eieldaiypgeniqinfrlsaglqkapvkfvrfqfvltiekk
>2chnB (B:) qnvslqpppqqlivqnktidlpavyqlnggeeanphavkvlkellsgkqsskkgmlisig ekgdksvrkysrqipdhkegyylsvnekeivlagndergtyyalqtfaqllkdgklpeve ikdypsvryrgvvegfygtpwshqarlsqlkfygknkmntyiygpkddpyhsapnwrlpy pdkeaaqlqelvavanenevdfvwaihpgqdikwnkedrdlllakfekmyqlgvrsfavf fddisgegtnpqkqaellnyidekfaqvkpdinqlvmcpteynkswsnpngnylttlgdk lnpsiqimwtgdrvisditrdgiswinerikrpayiwwnfpvsdyvrdhlllgpvygndt tiakemsgfvtnpmehaesskiaiysvasyawnpakydtwqtwkdairtilpsaaeelec famhnsdlgpnghgyrreesmdiqpaaerflkafkegknydkadfetlqytfermkesad illmntenkpliveitpwvhqfkltaemgeevlkmvegrnesyflrkynhvkalqqqmfy idqtsnqnpyqpgvktatrvikplidrtfatvvkffnqkfnahldattdymphkmisnve qiknlplqvkanrvlispanevvkwaagnsveieldaiypgeniqinfgkdapctwgrle istdakewktvdlkqkesrlsaglqkapvkfvrftnvsdeeqqvylrqfvltiekk
>2chnB (B:) lqpppqqlivqnktidlpavyqlnggeeanphavkvlkellgmlisigekgdksvrkysr qipdhkegyylsvnekeivlagndergtyyalqtfaqllkdgklpeveikdypsvryrgv vegfygtpwshqarlsqlkfygknkmntyiygpkddpyhsapnwrlpypdkeaaqlqelv avanenevdfvwaihpgqdikwnkedrdlllakfekmyqlgvrsfavffddisgegtnpq kqaellnyidekfaqvkpdinqlvmcpteynkswsnpngnylttlgdklnpsiqimwtgd rvisditrdgiswinerikrpayiwwnfpvsdyvrdhlllgpvygndttiakemsgfvtn pmehaesskiaiysvasyawnpakydtwqtwkdairtilpsaaeelecfamhnsdlgpng hgyrreesmdiqpaaerflkafkegknydkadfetlqytfermkesadillmntenkpli veitpwvhqfkltaemgeevlkmvegrnesyflrkynhvkalqqqmfyidqtsnqnpyqp gvktatrvikplidrtfatvvkffnqkfnahldattdymphkmnlplqvkanrvlispve ieldaiypgeniqinfrlsaglqkapvkfvrffvltiek