Chains and heterogens:
PDB Chain Sequences:
>1g77A (A:) gglrrrdlpadpltlferwlsqaceakladptamvvatvdehgqpyqrivllkhydekgm vfytnlgsrkahqiennprvsllfpwhtlerqvmvigkaerlstlevmkyfhsrprdsqi gawvskqssrisargileskflelkqkfqqgevplpsfwggfrvsleqiefwqggehrlh drflyqrendawkidrlap