Chains and heterogens:
PDB Chain Sequences:
>1gfqA (A:) aeiynkdgnkvdlygkavglhyfskgngensyggngdmtyarlgfkgetqinsdltgygq weynfqgnnsegadaqtgnktclafaglkyadvgsfdygrnygvvydalgytdmlpefgg dtaysddffvgrvggvatyrnsnffglvdglnfavqylgknerdtarrsngdgvggsisy eyegfgivgaygaadrtnlqeaqplgngkkaeqwatglkydanniylaanygetrnatpi tnkftntsgfanktqdvllvaqyqfdfglrpsiaytkskakdvegigdvdlvnyfevgat yyfnknmstyvdyiinqidsdnklgvgsddtvavgivyqf