Chains and heterogens:
PDB Chain Sequences:
>2fua_ (-) mernklarqiidtclemtrlglnqgtagnvsvryqdgmlitptgipyeklteshivfidg ngkheegklpssewrfhmaayqsrpdanavvhnhavhctavsilnrsipaihymiaaagg nsipcapyatfgtrelsehvalalknrkatllqhhgliacevnlekalwlahevevlaql ylttlaitdpvpvlsdeeiavvlekfktyg