Abstract:
본 발명은 캔디다 안타르크티카( Candida antarctica ) 유래의 리파제 B(CalB) 단백질 변이체에 관한 것으로서, 서열번호 1의 아미노산 서열로 표시되는 CalB 단백질의 274 위치 내지 289 위치의 아미노산 중 일부가 치환된, 서열번호 2 내지 8의 아미노산 서열로 표시되는 단백질로 이루어진 군에서 선택되는 본 발명에 따른 CalB 단백질 변이체는, 기존의 CalB 단백질보다 최대 35 배 증가된 효소 활성을 가지므로 리파제를 이용하는 산업에 유용하게 사용될 수 있다. 생명공학, 효소, 변이, 단백질, 활성
Abstract:
PURPOSE: A Candida Antarctica-derived lipase B(CalB) protein variant is provided to increase enzyme activity and to be used in the industry. CONSTITUTION: A CalB protein variant is selected from a protein of amino acid sequences 2-8 in which 274-289th amino acid is partially substituted in Candida Antarctica-derived lipase B(CalB) protein. A gene encoding CalB protein variant sequence is denoted by sequence number selected from sequence numbers 10-16. A recombinant vector containing the gene is prepared by inserting the gen into pK7 vector. A transformed cell which produces CalB protein variant is obtained by transforming a host cell with the recombinant vector. The host cells are Pichia pastoris.
Abstract:
본 발명은 신규 하이드록실아미노벤젠 뮤타아제, 이를 코딩하는 유전자 및 상기 하이드록실아미노벤젠 뮤타아제를 이용하여 다양한 아미노페놀 유도체를 제조하는 방법을 제공하며, 본 발명에 따른 하이드록실아미노벤젠 뮤타아제는 의약 중간체, 각종 기능성 화학 물질 또는 중간 물질로 사용될 수 있는 다양한 아미노페놀 유도체를 제조하는데 유용하게 사용될 수 있다.
Abstract:
The present invention relates to a novel hydroxylaminobenzene mutase and a gene coding the same, and a hydroxylaminobenzene mutase catalyzes reaction which rearranges a hydroxyl group in a hydroxylamino compound, thereby being expected to be used for manufacturing pharmaceutical intermediates, various kinds of functional chemical substances, or intermediates.
Abstract:
The present invention provides a novel esterase and a gene coding therefor. The present invention relates to a method of producing a novel esterase isolated from a metagenomic, the gene coding therefor; a recombinant vector comprising the gene; and a transformant transuded with the recombinant vector.
Abstract:
PURPOSE: A novel psychrophilic esterase is provided to ensure high activity at pH 8-10 and to be used in various industries. CONSTITUTION: A polypeptide with esterase activity is a polypeptide: which is encoded by a polynucleotide of sequence number 5; which is encoded by a polynucleotide hybridizable with a polynucleotide of sequence number 5 under a strict condition; or which has an amino acid sequence of sequence number 3. A method for preparing a recombinant esterase comprises: a step of preparing a recombinant expression vector containing the polynucleotide with esterase activity; a step of introducing the recombinant expression vector to a host cell to prepare a transformant; and a step of culturing the transformant to express the recombinant proteins and collecting the recombinant proteins.