>1exbA (A:) observed residues (from ATOM records)
lqfyrnlgksglrvsclglgtwvtfggqitdemaehlmtlaydnginlfdtaevyaagka
evvlgniikkkgwrrsslvittkifwggkaeterglsrkhiieglkaslerlqleyvdvv
fanrpdpntpmeetvramthvinqgmamywgtsrwssmeimeaysvarqfnlippiceqa
eyhmfqrekvevqlpelfhkigvgamtwsplacgivsgkydsgippysraslkgyqwlkd
kilseegrrqqaklkelqaiaerlgctlpqlaiawclrnegvssvllgasnaeqlmenig
aiqvlpklsssivheidsilgnkpys