>6f18A (A:) observed residues (from ATOM records)
vlsegewqlvlhvwakveadvaghgqdilirlfkshpetlekfdrfkhlkteaemkased
lkkvgvtaltalgailkkkghheaelkplaqshatkhkipikylefiseaiihvlhsrhp
gdfgadaqgamnkalelfrkdiaakykelgyqgg