>3p7cA (A:) observed residues (from ATOM records)
rptfyrqelnktiwevperyqnlspvgsgsvcaafdtktghrvavkklsrpfqsiihakr
tyrelrllkhmkhenviglldvftparsleefndvylvthlmgadlnnivkcqkltddhv
qfliyqilrglkyihsadiihrdlkpsnlavnedcelkildfgatrwyrapeimlnwmhy
nqtvdiwsvgcimaelltgrtlfpgtdhidqlklilrlvgtpgaellkkissesarnyiq
slaqmpkmnfanvfiganplavdllekmlvldsdkritaaqalahayfaqyhdpddepva
dpydqsfesrdllidewksltydevisfvppp