Chains and heterogens:
PDB Chain Sequences:
>1gbg_ (-) qtggsfyepfnnyntglwqkadgysngnmfnctwrannvsmtslgemrlsltspsynkfd cgenrsvqtygyglyevnmkpaknvgivssfftytgptdgtpwdeidieflgkdttkvqf nyytngvgnhekivnlgfdaansyhtyafdwqpnsikwyvdgqlkhtattqipqtpgkim mnlwngagvdewlgsyngvtplyahynwvrytkr