>4ka3A (A:) observed residues (from ATOM records)
erptfyrqelnktiwevperyqnlspvgsgaygsvcaafdtktghrvavkklsrpfqsii
hakrtyrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnnivkcqklt
ddhvqfliyqilrglkyihsadiihrdlkpsnlavnedcelkildfglaatrwyrapeim
lnwmhynqtvdiwsvgcimaelltgrtlfpgtdhidqlklilrlvgtpgaellkkisses
arnyiqslaqmpkmnfanvfiganplavdllekmlvldsdkritaaqalahayfaqyhdp
ddepvadpydqsfesrdllidewksltydevisfvpppld