<i>N</i>-Carbamoyl-<scp>L</scp>-Cysteine as an Intermediate in the Bioconversion from<scp>D</scp>,<scp>L</scp>-2-Amino-<i>Δ</i><sup>2</sup>-Thiazoline-4-Carboxylic Acid to<scp>L</scp>-Cysteine by<i>Pseudomonas</i>sp. ON-4a
conversion of D,L-2-amino-Δ (2)-thiazoline-4-carboxylic acid (D,L-ATC) to L-cysteine with Pseudomonassp. ON-4a, an ATC-assimilating bacterium. Cysteine and N-carbamoylcysteine (NCC), but not S-carbamoylcysteine (SCC), were produced from D,L-ATC by a cell-free extract from the strain. These products were isolated from the reaction mixture and then identified as the L-form. Similar results were obtained