>4LUP_1|Chains A, B[auth C]|RNA polymerase sigma factor|Escherichia coli (562)
MSEQLTDQVLVERVQKGDQKAFNLLVVRYQHKVASLVSRYVPSGDVPDVVQEAFIKAYRALDSFRGDSAFYTWLYRIAVNTAKNYLVAQGRRLELVPRGSHHHHHH
>4LUP_2|Chains C[auth B], D|region 2 of sigmaE of E. coli|null
TGTCAAA