Chains and heterogens:
PDB Chain Sequences:
>2gfkA (A:) aevplpqlraytvdaswlqpmaplqiadhtwqigtedltallvqtpdgavlldggmpqma shlldnmkargvtprdlrlillshahadhagpvaelkrrtgakvaanaesavllarggsd dlhfgdgityppanadrivmdgevitvggivftahfmaghtpgstawtwtdtrngkpvri ayadslsapgyqlqgnpryphliedyrrsfatvralpcdvlltphpgasnwdyaagarag akaltckayadaaeqkfdgqlaketagar
>2gfkA (A:) evplpqlraytvdaswlqpmaplqiadhtwqigtedltallvqtpdgavlldggmpqmas hlldnmkargvtprdlrlillshahadhagpvaelkrrtgakvaanaesavllarggsdd lhfgdgityppanadrivmdgevitvggivftahfmaghtpgstawtwtdtrngkpvria yadslsapgyqlqgnpryphliedyrrsfatvralpcdvlltphpgasnwdyaagaraga kaltckayadaaeqkfdgqlaketag
>2gfkB (B:) aevplpqlraytvdaswlqpmaplqiadhtwqigtedltallvqtpdgavlldggmpqma shlldnmkargvtprdlrlillshahadhagpvaelkrrtgakvaanaesavllarggsd dlhfgdgityppanadrivmdgevitvggivftahfmaghtpgstawtwtdtrngkpvri ayadslsapgyqlqgnpryphliedyrrsfatvralpcdvlltphpgasnwdyaagarag akaltckayadaaeqkfdgqlaketagar
>2gfkB (B:) evplpqlraytvdaswlqpmaplqiadhtwqigtedltallvqtpdgavlldggmpqmas hlldnmkargvtprdlrlillshahadhagpvaelkrrtgakvaanaesavllarggsdd lhfgdgityppanadrivmdgevitvggivftahfmaghtpgstawtwtdtrngkpvria yadslsapgyqlqgnpryphliedyrrsfatvralpcdvlltphpgasnwdyaagaraga kaltckayadaaeqkfdgqlaketag