>2fstX (X:) observed residues (from ATOM records)
rptfyrqelnktiwevperyqnlspvggsvcaafdtktglrvavkklsrpfqsiihakrt
yrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnqkltddhvqfliyq
ilrglkyihsadiihrdlkpsnlavnedcelkildatrwyrapeimlnwmhynqtvdiws
vgcimaelltgrtlfpgtdhidqlklilrlvgtpgaellkkissesarnyiqsltqmpkm
nfanvfiganplavdllekmlvldsdkritaaqalahayfaqyhdpddepvadpydqsle
srdllidewksltydevisfvppp