NOVEL O-PHOSPHOSERINE EXPORT PROTEIN AND THE METHOD OF PRODUCING O-PHOSPHOSERINE USING THE SAME

摘要

The present invention relates to a novel isolated polypeptide having the ability to export O-phosphoserine (OPS) that is a precursor of L-cysteine, a vector comprising the polynucleotide, an OPS-producing microorganism having enhanced activity of the polypeptide, a method of producing OPS using the microorganism, and a method for preparing cysteine or its derivatives, which comprises reacting OPS, produced by the above method, with a sulfide in the presence of O-phosphoserine sulfhydrylase (OPSS) or a microorganism that expresses OPSS.

主权项

1. A method for producing O-phosphoserine (OPS), comprising culturing an O-phosphoserine-producing microorganism having enhanced activity of a polypeptide that has an amino acid sequence of SEQ ID NO: 1 or 2 and has O-phosphoserine exporting activity.