Chains and heterogens:
PDB Chain Sequences:
>1nzfA (A:) mkiaiinmgnnvinfktvpssetiylfkvisemglnvdiislkngvytksfdevdvndyd rlivvnssinffggkpnlailsaqkfmakykskiyylftairlpfsqswpnvknrpwayl yteeellikspikvisqginldiakaahkkvdnviefeyfpieqykihmndfqlskptkk tldviyggsfrsgqreskmveflfdtglnieffgnarekqfknpkypwtkapvftgkipm nmvseknsqaiaaliigdknyndnfitlrvwetmasdavmlideefdtkhriindarfyv nnraelidrvnelkhsdvlrkemlsiqhdilnktrakkaewqdafkkaidl