Chains and heterogens:
PDB Chain Sequences:
>1gfn_ (-) aeiynkdgnkvdlygkavglhyfskgngensyggngdmtyarlgfkgetqinsdltgygq weynfqgnnsegadaqtgnktrlafaglkyadvgsfdygrnygvvydalpefggdtaysd dffvgrvggvatyrnsnffglvdglnfavqylgknerdtarrsngdgvggsisyeyegfg ivgaygaadrtnlqeaqplgngkkaeqwatglkydanniylaanygetrnatpitnkftn tsgfanktqdvllvaqyqfdfglrpsiaytkskakdvegigdvdlvnyfevgatyyfnkn mstyvdyiinqidsdnklgvgsddtvavgivyqf
>1gfn_ (-) aeiynkdgnkvdlygkavglhyfskgngensyggngdmtyarlgfkgetqinsdltgygq weynfqgnnsegadaqtgnktrlafaglkyadvgsfdygrnygvvydalpysddffvgrv ggvatyrnsnffglvdglnfavqylgknerdtarrsngdgvggsisyeyegfgivgayga adrtnlqeaqplgngkkaeqwatglkydanniylaanygetrnatpitnkftntsgfank tqdvllvaqyqfdfglrpsiaytkskakdvegigdvdlvnyfevgatyyfnknmstyvdy iinqidsdnklgvgsddtvavgivyqf