>1ZG5_1|Chains A[auth C], B[auth D], C[auth G], D[auth H]|5'-D(*CP*GP*TP*AP*CP*CP*CP*CP*TP*AP*TP*AP*GP*GP*GP*GP*TP*AP*CP*G)-3'|null CGTACCCCTATAGGGGTACG >1ZG5_2|Chains E[auth A], F[auth B], G[auth E], H[auth F]|Nitrate/nitrite response regulator protein narL|Escherichia coli (562) MRGSHHHHHHGSATTERDVNQLTPRERDILKLIAQGLPNKMIARRLDITESTVKVHVKHMLKKMKLKSRVEAAVWVHQERIF