Chains and heterogens:
PDB Chain Sequences:
>1hxtA (A:) aeiynkdgnkvdlygkavglhyfskgngensyggngdmtyaalgfkgetqinsdltgygq weynfqgnnsegadaqtgnktalafaglkyadvgsfdygrnygvvydalgytnmlpqfgg dtaysddffvgavggvatyrnsnffglvdglnfavqylgknerdtarrsngdgvggsisy eyegfgivgaygaadrtnlqeaqplgngkkaeqwatglkydanniylaanygetrnatpi tnkftntsgfanktqdvllvaqyqfdfglrpsiaytkskakdvegigdvdlvnyfevgat yyfnknmstyvdyiinqidsdnklgvgsddtvavgivyqf