>4aa4A (A:) observed residues (from ATOM records)
rptfyrqelnktiwevperyqnlspvgsgaygsvcaafdtktglrvavkklsrpfqsiih
akrtyrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnnivltddhvq
fliyqilrglkyihsadiihrdlkpsnlavnedcelkildfglarhtddemtgyvatrwy
rapeimlnwmhynqtvdiwsvgcimaelltgrtlfpgtdhidqlklilrlvgtpgaellk
kissesarnyiqsltqmpkmnfanvfiganplavdllekmlvldsdkritaaqalahayf
aqyhdpddepvadpydqsfesrdllidewksltydevisfvpppldq