>3EZI_1|Chains A, B, C, D|Nitrate/nitrite sensor protein narX|Escherichia coli K12 (83333)
GSAHAINKAGSLRMQSYRLLAAVPLSEKDKPLIKEMEQTAFSAELTRAAERDGQLAQLQGLQDYWRNELIPALMRAQNRETVSADVSQFVAGLDQLVSGFDRTTEMR