文摘
The membrane protein NosR, required for assembly and function of nitrous oxide reductase, is covalently flavinylated. Pseudomonas stutzeri lacks a flavinyl transferase (NosX) gene in the nos operon. NosR can be functionally flavinylated by the single flavinyl transferase present in the genome, the AbpE protein. A three-dimensional structure of apo-ApbE is presented.