Korea Research Institute of Bioscience and Biotechnology

Jung Oh Ahn

Hong Weon Lee

Eun Gyo Lee

Joon Ki Jung

Hyeok Won Lee

Chun Sug Kim

Eui Sung Choi

Min Jeong Jang

Chun Suk Kim

Myoung Soo Park

Ji Yeon Hong

Gyu Yeon Park

Hee Suk Lee

Woo Young Jeon

Hong-Weon Lee

Hee-Ju Ko

Sun-Joo Park

Joo Hwan Lee

The present invention relates to a method for producing a medium chain diamine and, more specifically, to a method for producing a medium chain diamine from an alcohol or alkane derived from a fatty acid, by culturing a recombinant microorganism from which a fatty aldehyde dehydrogenase gene in a &#x3c9;-oxidative metabolic pathway and a &#x3b2;-oxidative metabolic pathway related gene have been deleted, and also into which a &#x3c9;-transaminase gene has been introduced. The recombinant microorganism disclosed in the present invention can prevent the additional oxidation and &#x3b2;-oxidation metabolism of fatty aldehyde and can produce a medium chain diamine with a high yield by introducing an amine group to the terminus thereof.

Method for producing medium chain diamine

The present invention relates to a method for producing medium chain diol and, more particularly to recombinant microorganisms in which fatty alcohol dehydrogenase and/or fatty alcohol oxidase genes on a &#x3c9;-oxidative metabolism pathway are deleted, the fatty aldehyde dehydrogenase genes are optionally deleted, and &#x3b2;-oxidative metabolism pathway-related genes are deleted, and to a method for producing medium chain diol from fatty acid-derived alcohol or alkane by culturing the recombinant microorganisms. The recombinant microorganisms of the present invention can produce a high yield of medium chain diol by preventing further oxidation and &#x3b2;-oxidative metabolism of fatty alcohols.

Method for producing medium chain diol

The present invention relates to a method for preparing a recombinant microorganism simultaneously comprising genes encoding enzymes used in the biosynthesis pathway of 6-aminocaproic acid, which is a precursor of caprolactam, biosynthesizing 6-aminocaproic acid from the microorganism, and producing the same so as to synthesize caprolactam.

Biological synthesis of 6-aminocaproic acid and transgenic microorganism therefor

Disclosed herein are a-derived auto-inducible NPS promoter; a recombinant expression vector carrying the promoter and a nucleotide sequence, the sequence being operably linked to the promoter and coding for a recombinant protein; a host cell transformed or transfected with the recombinant expression vector; and a method for producing a recombinant protein, comprising culturing the host cell to express the recombinant protein and isolating the protein. The NPS promoter allows a recombinant protein of interest to be produced on a large scale without the need of any inducer.

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Disclosed are a-derived translation elongation factor (TEF) promoter, a recombinant expression vector carrying the promoter and a heterologous protein encoding base sequence operably linked to the promoter, and a host cell transfected or transformed with the recombinant expression vector. Also, a method is provided for producing a heterologous protein. The method comprises culturing the host cell to express the-derived TEF promoter and isolating the promoter from the culture. The TEF promoter can be utilized for the mass production of heterologous proteins without the need for inducers.

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Daejeon, South Korea

Jung Oh Ahn