Company Filing History:
Years Active: 2017-2022
Title: Innovations and Contributions of Xiuling Shang
Introduction
Xiuling Shang is a prominent inventor based in Beijing, China. He has made significant contributions to the field of biotechnology, particularly in the production of amino acids and related compounds. With a total of three patents to his name, his work has implications for both industrial applications and scientific research.
Latest Patents
One of Xiuling Shang's latest patents is a method for modifying an amino acid attenuator and its use in production. This invention discloses a method for modifying an amino acid attenuator, which includes a class of amino acid attenuator mutants and engineered bacteria created based on these mutants. The invention aims to relieve the attenuation regulation of an amino acid operon gene, particularly focusing on operons such as histidine, tryptophan, phenylalanine, alanine, and threonine. This method can enhance the production of amino acids and their derivatives through fermentation by bacteria.
Another notable patent involves engineering bacteria that produce 1,5-pentanediamine through whole cell catalysis. This invention describes a strain with overexpression of a lysine decarboxylase gene and proper expression of a lysine-cadaverine antiporter gene. The method significantly improves the yield and production intensity of 1,5-pentanediamine, making it suitable for mass production and extending its applications.
Career Highlights
Xiuling Shang