>1exrA (A:) SEQRES residues aeqlteeqiaefkeafalfdkdgdgtittkelgtvmrslgqnpteaelqdminevdadgn gtidfpeflslmarkmkeqdseeelieafkvfdrdgnglisaaelrhvmtnlgekltdde vdemireadidgdghinyeefvrmmvsk