>2f20_A   240   2     
# si pdb  2f20_A      97.08   233     2.10  SCOP 2f20_A
# si pdb  2f20_B      96.67   232     2.10  SCOP 2f20_B
XCFHNSXSAKAIKVAARYGRQSDVVEIYQSILDEQYHVNAFTFPRYPIIT  
SSDEVQVFNWGLIPFWVRSEEDATEIRKXTLNARADTIFEKPSFREPIXK  
KRCIVPSTGYFEWRHEGANKIPYYIYVKDEPIFSXAGIYDRWLDKDTGEE  
HETFSIITTDTNSLTDYIDNTKHRXPAILTQEEEEKWLNPSLSKAEIASL  
LKPFDTEKXDAYVIRNDFLKKSPNDPTIVQRALEHHHHHH