Chains and heterogens:
PDB Chain Sequences:
>3fua_ (-) mernklarqiidtclemtrlglnqgtagnvsvryqdgmlitptgipyeklteshivfidg ngkheegklpssewrfhmaayqsrpdanavvhnhavhctavsilnrsipaihymiaaagg nsipcapyatfgtrelsehvalalknrkatllqhhgliacevnlekalwlahevevlaql ylttlaitdpvpvlsdeeiavvlekf