Chains and heterogens:
PDB Chain Sequences:
>1gycA (A:) aigpaaslvvanapvspdgflrdaivvngvfpsplitgkkgdrfqlnvvdtltnhtmlks tsihwhgffqagtnwadgpafvnqcpiasghsflydfhvpdqagtfwyhshlstqycdgl rgpfvvydpkdphasrydvdnestvitltdwyhtaarlgprfplgadatlinglgrsast ptaalavinvqhgkryrfrlvsiscdpnytfsidghnltvievdginsqpllvdsiqifa aqrysfvlnanqtvgnywiranpnfgtvgfagginsailryqgapvaeptttqttsvipl ietnlhplarmpvpgsptpggvdkalnlafnfngtnffinnasftpptvpvllqilsgaq taqdllpagsvyplpahstieitlpatalapgaphpfhlhghafavvrsagsttynyndp ifrdvvstgtpaagdnvtirfqtdnpgpwflhchidfhleagfaivfaedvadvkaanpv pkawsdlcpiydglseanq