>1um2A (A:) observed residues (from ATOM records)
sfakgtnvlmadgsiecienievgnkvmgkdgrpreviklprgretmysvvqkspellkf
tcnatnelvvrtprsvrrlsrtikgveyfevitfemgqkkapdgrivelvkevsksypis
egperanelvesyrkasnkayfewtieardlsllgshvrkatyqtyapilyendhffdym
qkskfhltiegpkvlayllglwigdglsdratfsvdsrdtslmervteyaeklnlcaeyk
drkepqvaktvnlyskenplwdaivglgflkdgvknipsflstdnigtretflaglidsd
gyvtdehgikatiktihtsvrdglvslarslglvvsvnaepisyaiymsggdvllnvlsk
cagskkfrpapaaafarecrgfyfelqelkeddyygitlsddsdhqfllanqvvvhn