>5xakA (A:) observed residues (from ATOM records) glfltlegldgsgkttqarrlaafleaqgrpvlltrepggglpevrsllltqelspeaey llfsadraehvrkvilpglaagkvvisdryldsslayqgygrglplpwlrevareatrgl kprltflldlppeaagleffrrvregylalaraepgrfvvldatlpeeeiaraiqahlrp l