>2d4wB (B:) observed residues (from ATOM records)
adyvlaidqgttssraivfdhsgeiystgqlehdqifpragwvehnpeqiwnnvrevvgl
altrgnlthediaavgitnqretavvwdkttgkpvynaivwqdtrtqkivdelggdegae
kyksivglplatyfsgpkikwildnvegarekaekgdllfgntdtwvlwnmtggteggvh
vtdvtnasrtmlmdldtlswrediaadmgiplsmlpdirsssevyghgrprglvpgvpia
gilgdqqaatfgqacfevgqakntygtgnflllntgtekvmskngllttvcykigdapav
yalegsiavtgslvqwlrdnlgmfedapdvewlagkvqdnggayfvpafsglfapywrpd
argalvgltryvnrnhiaraaleatafqsrevvdamnadsgvdltelrvdggmvanellm
qfqadqlgvdvvrpkvaettalgaayaagiavgfwkgeqdvidnwaedkrwspsmesger
erlyrnwkkavtktmewvdedve