>3nz4A (A:) observed residues (from ATOM records)
srshvkdilglintfnevkkitvdgttpitvahvaalarrhdvkvaleaeqcrarvetcs
swvqrkaedgadiygvttgfgacssrrtnqlselqeslircllagvftkgcassvdelpa
tvtrsamllrlnsftygcsgirwevmealekllnsnvspkvplrgsvsasgdliplayia
glligkpsviarigddvevpapealsrvglrpfklqakeglalvngtsfatalastvmyd
anvllllvetlcgmfcevifgreefahplihkvkphpgqiesaellewllrsspfqdlsr
eyysidklkkpkqdryalrsspqwlaplvqtirdatttvetevnsandnpiidhandral
hganfqgsavgfymdyvriavaglgkllfaqftelmieyysnglpgnlslgpdlsvdygl
kgldiamaaysselqylanpvtthvhsaeqhnqdinslalisarktdealdilklmiash
ltamcqavdlrqleealvkvvenvvstladecglpndtkarllyvakavpvytylespcd
ptlplllglkqscfgsilalhketdtlvdrlaefekrlsdrlenemtavrvlyekvriqg
srflpfyrfvrdeldtgvmsarreqtpqedvqkvfdaiadgritvpllhclqgflg