>2zstA (A:) SEQRES residues vlsegewqlvlhvwakveadvaghgqdilirlfkshpetlekfdrfkhlkteaemkased lkkhgvtvltalgailkkkghheaelkplaqshatkhkipikylefiseaiihvlhsrhp gdfgadaqgamnkalelfrkdiaakykelgyqg