>6bu1A (A:) observed residues (from ATOM records)
drvsvgnlriarvlydfvnnealpgtdidpdsfwagvdkvvadltpqnqallnardelqa
qidkwhrrrviepidmdayrqflteigyllpepddftittsgvdaeitttagpqlvvpvl
narfalnaanarwgslydalygtdvipetdgaekgptynkvrgdkviayarkflddsvpl
ssgsfgdatgftvqdgqlvvalpdkstglanpgqfagytgaaesptsvllinhglhieil
idpesqvgttdragvkdvilesaittimdfedsvaavdaadkvlgyrnwlglnkgdlaar
vlnrdrnytapgggqftlpgrslmfvrnvghlmtndaivdtdgsevfegimdalftglia
ihglkasgplinsrtgsiyivkpkmhgpaevaftcelfsrvedvlglpqntmkigimdee
rrttvnlkacikaaadrvvfintgfldrtgdeihtsmeagpmvrkgtmksqpwilayedh
nvdaglaagfsgraqvgkgmwtmtelmadmvetkiaqpragastawvpsptaatlhalhy
hqvdvaavqqglagkrratieqlltiplakelawapdeireevdnncqsilgyvvrwvdq
gvgaskvpdihdvalmedratlrissqllanwlrhgvitsadvraslermaplvdrqnag
dvayrpmapnfddsiaflaaqelilsgaqqpngytepilhrrrrefkaraae