Chains and heterogens:
PDB Chain Sequences:
>1gkzA (A:) vrltptmmlysgrsqdgshllksgrylqqelpvriahrikgfrslpfiigcnptilhvhe lyirafqkltdfppikdqadeaqycqlvrqllddhkdvvtllaeglresrkhiedeklvr yfldktltsrlgirmlathhlalhedkpdfvgiictrlspkkiiekwvdfarrlcehkyg naprvringhvaarfpfipmpldyilpellknamratmeshldtpynvpdvvitianndv dliirisdrgggiahkdldrvmdyhfttaeastqdprisplfghldmhsggqsgpmhgfg fglptsrayaeylggslqlqslqgigtdvylrlrhidgree
>1gkzA (A:) vrltptmmlysgrsqdgshllksgrylqqelpvriahrikgfrslpfiigcnptilhvhe lyirafqkltdfppikdqadeaqycqlvrqllddhkdvvtllaeglresrkhiedeklvr yfldktltsrlgirmlathhlalhedkpdfvgiictrlspkkiiekwvdfarrlcehkyg naprvringhvaarfpfipmpldyilpellknamratmeshldtpynvpdvvitianndv dliirisdrgggiahkdldrvmdyhfttapmhgfgfglptsrayaeylggslqlqslqgi gtdvylrlrhidgree