>2a7qA (A:) observed residues (from ATOM records)
rikkisiegniaagkstfvnilkqlcedwevvpepvarwcnvqstnggnvlqmmyekper
wsftfqtyaclsriraqlaslngklkdaekpvlffersvysdryifasnlyesecmnete
wtiyqdwhdwmnnqfgqsleldgiiylqatpetclhriylrgrneeqgipleyleklhyk
heswllhrtlktnfdylqevpiltldvnedfkdkyeslvekvkeflstl