Abstract:
본 발명은 아시네토박토 종 SY-01의 입체선택적 기질 특이성을 갖는 리파제 변이체의 유전자 서열 및 이로부터 발현되는 단백질에 관한 것이다. 본 발명의 아시네토박토 종 SY-01 리파제로부터 돌연변이된 리파제는 활성이 우수하므로 상기 리파제 변이체 코딩 유전자를 포함하는 형질전환된 리파제를 생체 촉매로서 산업적으로 이용될 수 있다.
Abstract:
PURPOSE: A process for preparing Gallamine derivative is provided, thereby cheaply preparing the Gallamine derivative which is useful in synthesis of aminoglycoside antibiotics including isepamycin. CONSTITUTION: A process for preparing Gallamine derivative of the formula(4) comprises the steps of: introducing acetyl(-Ac) or benzyloxycarbonyl(-Cbz) into the amine group of 3,2',6'-NH2 of sisomicin or gentamicin to prepare a compound of the formula(1); reacting the amine group of 1-NH2 of the compound of the formula(1) with anhydride of acid represented by YOH or acid derivative thereof to prepare a compound of the formula(2); introducing acetyl(-Ac) or benzyloxycarbonyl(-Cbz) into the amine group of 3'-NH2 of the compound of the formula(2) to prepare a compound of the formula(3); and reacting the compound of the formula(3) under acid condition to remove purpurosamine or sisosamine ring to prepare the Gallamine derivative of the formula(4), wherein R1 and R2 are independently hydrogen or methyl; X is acetyl or benzyloxycarbonyl; Y is C1 to C10 alkylcarbonyl, or amino or hydroxy substituted C1 to C10 alkylcarbonyl.
Abstract:
PURPOSE: Provided are a gene coding lipase of Acinetobacter species SY-01 with stereoselective substrate specificity and a protein expressed therefrom. CONSTITUTION: A gene is characterized by coding amino acid sequence of lipase of Acinetobacter species SY-01, represented by the SEQ ID NO:2. A transformed Bacillus subtilis 168/pSYLipSM(1) (KCTC 10267BP) is obtained by transformation with a recombinant vector plasmid pSYLipSM(1) containing the gene coding the lipase of Acinetobacter species SY-01. The lipase of Acinetobacter species SY-01 is manufactured by the steps of culturing the transformed bacillus subtilis, and isolating and purifying expressed lipase of Acinetobacter species SY-01 from the cultured cell.
Abstract translation:目的:提供具有立体选择底物特异性的不动杆菌属SY-01的脂肪酶基因和由其表达的蛋白质。 构成:基因的特征在于编码由SEQ ID NO:2表示的不动杆菌属物种SY-01的脂肪酶的氨基酸序列。 通过用含有编码不动杆菌属SY-01的脂肪酶的基因的重组载体质粒pSYLipSM(1)转化获得转化的枯草芽孢杆菌168 / pSYLipSM(1)(KCTC 10267BP)。 通过培养转化的枯草芽孢杆菌并从培养的细胞中分离和纯化不动杆菌属SY-01的表达脂肪酶的步骤制造不动杆菌属物种SY-01的脂肪酶。
Abstract:
다공성탄소재료에 IrO을전해도금하여형성하고이에백금을도포하여다공성백금층을형성한가역연료전지산소전극및 이를포함하는가역연료전지, 그제조방법이개시된다. 해당가역연료전지산소전극에의하면, 가역연료전지산소전극에사용되는 IrO및백금로딩량을낮출수 있음에따라귀금속사용양을줄일수 있으면서도물과산소의물질전달을향상하여우수한가역연료전지성능(우수한연료전지성능및 물전기분해성능)을나타낼수 있다. 또한, 가역연료전지산소전극에적용시 양호한촉매활성을나타낼수 있으면서도탄소부식을줄일수 있다. 또한, 제조과정이매우종래와대비하여단순하며제조비용을크게절감할수 있다.
Abstract:
다공성탄소재료에 IrO을전해도금하여형성하고이에백금을도포하여다공성백금층을형성한가역연료전지산소전극및 이를포함하는가역연료전지, 그제조방법이개시된다. 해당가역연료전지산소전극에의하면, 가역연료전지산소전극에사용되는 IrO및백금로딩량을낮출수 있음에따라귀금속사용양을줄일수 있으면서도물과산소의물질전달을향상하여우수한가역연료전지성능(우수한연료전지성능및 물전기분해성능)을나타낼수 있다. 또한, 가역연료전지산소전극에적용시 양호한촉매활성을나타낼수 있으면서도탄소부식을줄일수 있다. 또한, 제조과정이매우종래와대비하여단순하며제조비용을크게절감할수 있다.
Abstract:
PURPOSE: A process for producing isepamicin is provided, thereby improving the production yield of isepamicin which is used as an antibiotics via garamine derivatives as an intermediate. CONSTITUTION: A process for producing isepamicin represented by the formula(8) comprises the steps of: introducing acetyl group(-Ac) or benzyloxycarbonyl group(-Cbz) to 3,2',6'-NH2 group of sisomicin or gentamicin to prepare a compound of the formula(1); binding of 1-NH2 group of a compound of the formula(1) with isoserine derivative of the formula(2) to prepare a compound of the formula(3); introducing acetyl group(-Ac) or benzyloxycarbonyl group(-Cbz) to 3'-NH2 group of the compound of the formula(3) to prepare a compound of the formula(4); reacting the compound of the formula(4) under acid condition to remove purpurosamine or sisosamine ring to prepare garamine derivative of the formula(5); reacting the garamine derivative of the formula(5) with glycosyl chloride of the formula(6) to prepare a compound of the formula(7); and reacting the compound of the formula(7) under palladium/carbon catalyst and hydrogen, wherein R1 and R2 are independently hydrogen or methyl; and X is acetyl group(-Ac) or benzyloxycarbonyl group(-Cbz).
Abstract:
본발명은 신균주 악시네토박터( Acinetobacter sp. ) SY-01 (상기 균주는 벌콜데리아 코코베네난스( Burkholderia cocovenenans ) SY-01로 기탁되었으나, 2002년 5월 1일자로 제출한 과학적 성질 및 분류학상의 위치 표시 등의 기록서를 통하여 분류학상의 위치가 Acinetobacter sp. SY-01로 수정되었음)과 이로부터 생산되는 입체선택적 기질특이성을 갖는 리파제에 관한 것으로, 더욱 상세하게는 항진균제의 원료로 사용되는 이트라코나졸의 중간체로서 라세믹 혼합물인 시스-2-(브로모메틸)-2-(2,4-디클로로 페닐)-1,3-디옥소란-4-메틸 아세테이트의 에스테르결합을 입체선택적으로 분해할 수 있는 리파제에 관한 것이다.