Chains and heterogens:
PDB Chain Sequences:
>1e49P (P:) mernklarqiidtclemtrlglnqgtaglvsvryqdgmlitptgipyeklteshivfidg ngkheegklpasewrfhmaayqsrpdanavvhnhavhctavsilnrsipaihymiaaagg nsipcapyatfgtrelsehvalalknrkatllqhhgliacevnlekalwlahevevlaql ylttlaitdpvpvlsdeeiavvlekf