>1ch3A (A:) SEQRES residues mvlsegewqlvlhvwakveadvaghgqdilirlfkshpetlekfdrfkhlkteaemkase dlkkhgvtvltalgailkkkghheaelkpwaqshatkhkipikylefiseaiihvlhsrh pgnfgadaqgamnkalelfrkdiaakykelgyqg