Chains and heterogens:
PDB Chain Sequences:
>1c7qA (A:) maisfdysnalpfmqeneldylsefvkaahhmlherkgpgsdflgwvdwpirydknefsr ikqaaerirnhsdalvvigiggsylgaraaiealshtfhnqmndttqiyfagqnisstyi shlldvlegkdlsinvisksgtttepaiafrifrdymekkygkeearkriyvttdrtkga lkkladqegyetfvipdniggrysvltavgllpiavaglnidrmmegaasayhkynnpdl ltnesyqyaavrnilyrkgkaiellvnyepslhyvsewwkqlfgesegkdqkglfpasvd fttdlhsmgqyvqegrrnlietvlhvkkpqieltiqedpenidglnflagktldevnkka fqgtllahvdggvpnliveldemneytfgemvyffekacgisghllgvnpfdqpgveayk knmfallgkpgfedekaalmkrlsk
>1c7qA (A:) aisfdysnalpfmqeneldylsefvkaahhmlherkgpgsdflgwvdwpirydknefsri kqaaerirnhsdalvvigiggsylgaraaiealshtfhnqmndttqiyfagqnisstyis hlldvlegkdlsinvisksgtttepaiafrifrdymekkygkeearkriyvttdrtkgal kkladqegyetfvipdniggrysvltavgllpiavaglnidrmmegaasayhkynnpdll tnesyqyaavrnilyrkgkaiellvnyepslhyvsewwkqlfgesegkdqkglfpasvdf ttdlhsmgqyvqegrrnlietvlhvkkpqieltiqedpenidglnflagktldevnkkaf qgtllahvdggvpnliveldemneytfgemvyffekacgisghllgvnpfdqpgveaykk nmfallgkpgfedekaalmkrl