Chains and heterogens:
PDB Chain Sequences:
>1bu8A (A:) kevcyghlgcfsndkpwagmlqrplkifpwspedidtrfllytnenpnnyqkisatepdt ikfsnfqldrktrfivhgfidkgedgwlldmckkmfqvekvncicvdwrrgsrteytqas yntrvvgaeiaflvqvlstemgyspenvhlighslgahvvgeagrrleghvgritgldpa epcfqglpeevrldpsdamfvdvihtdsapiipylgfgmsqkvghldffpnggkempgcq knilstivdingiwegtqnfvacnhlrsykyyassilnpdgflgypcssyekfqqndcfp cpeegcpkmghyadqfegktatveqtvylntgdsgnftrwrykvsvtlsgakklsgyilv alygnngnskqyeifkgslkpearhvrdidvdinvgeiqkvkflwnnkvinlfrptlgas qitvqsgvdgkeynfcssdtvredvlqslypc
>1bu8A (A:) kevcyghlgcfsndkpwagmlqrplkifpwspedidtrfllytnenpnnyqkisatepdt ikfsnfqldrktrfivhgfidkgedgwlldmckkmfqvekvncicvdwrrgsrteytqas yntrvvgaeiaflvqvlstemgyspenvhlighslgahvvgeagrrleghvgritgldpa epcfqglpeevrldpsdamfvdvihtdsapiipylgfgmsqkvghldffpnggkempgcq knilstivdingiwegtqnfvacnhlrsykyyassilnpdgflgypcssyekfqqndcfp cpeegcpkmghyadqfegktatveqtvylntgdsgnftrwrykvsvtlsgakklsgyilv alygnngnskqyeifkgslkpearhvrdidvdinvgeiqkvkflwnnrptlgasqitvqs gvdgkeynfcssdtvredvlqslypc