entry_id,entity code 0,residue number 0,residue name 0,entity code 1,residue number 1,residue name 1,entity code 2,residue number 2,residue name 2,entity code 3,residue number 3,residue name 3,entity code 4,residue number 4,residue name 4
pdb28sr,1,1,G,1,28,C,,,,,,,,,
pdb28sr,1,2,G,1,27,C,,,,,,,,,
pdb28sr,1,3,C,1,26,G,,,,,,,,,
pdb28sr,1,4,G,1,25,C,,,,,,,,,
pdb28sr,1,10,U,1,19,A,,,,,,,,,
pdb28sr,1,11,C,1,18,G,,,,,,,,,
pdb28sr,1,12,C,1,17,G,,,,,,,,,