>4atmA (A:) observed residues (from ATOM records)
raqekvlqklgkadetkdeqfeeyvqnfkrqeaegtrlqrelrgylaaikgmqeasmklt
eslhevyepdwygredvkmvgekcdvlwedfhqklvdeslltldtylgqfpdiknriakr
srklvdydsarhhlealqsskrkdesriskaeeefqkaqkvfeefnvdlqeelpslwsrr
vgfyvntfknvssleakfhkeiavlchklyevmtklgdqha