>6txrD (D:) observed residues (from ATOM records)
pkpkivlvgsgmiggvmatlivqknlgdvvmfdvvknmpqgkaldtshsnvmaysnckvt
gsnsyddlkgadvvivtagftkanrddllplnnkimieigghiknlcpnafiivvtnpvd
vmvqllfehsgvpknkiiglggvldtsrlkyyisqklnvcprdvnalivgahgnkmvllk
ryitvggiplqefinnkkitdeevegifdrtvntaleivnllaspyvapaaaiiemaesy
lkdikkvlvcstllegqyghsnifggtplviggtgveqvielqlnaeektkfdeavaetk
rmkali