>4fa2A (A:) observed residues (from ATOM records)
erptfyrqelnktiwevperyqnlspvgsgaygsvcaafdtktglrvavkklsrpfqsii
hakrtyrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnnivkcqklt
ddhvqfliyqilrglkyihsadiihrdlkpsnlavnedcelkildfglvatrwyrapeim
lnwmhynqtvdiwsvgcimaelltgrtlfpgtdhidqlklilrlvgtpgaellkkisses
arnyiqsltqmpkmnfanvfiganplavdllekmlvldsdkritaaqalahayfaqyhdp
ddepvadpydqsfesrdllidewksltydevisfvpppl