Abstract:
본 발명은 재조합 대장균을 이용한 파필리오신의 대량 생산방법에 관한 것이다. 본 발명의 재조합 대장균을 이용한 파필리오신의 대량 생산방법은 호랑나비( Papilio
xuthus ) 유충 유래의 파필리오신 유전자를 갖는 형질전환된 재조합 대장균을 제조하는 단계와, 상기의 형질전환체인 재조합 대장균을 배양한 후, 이를 불용성 재조합 융합단백질로 발현한 후 분리 및 정제하여 파필리오신을 생산하는 단계를 포함하여 구성된다. 본 발명에 의해, 재조합된 파필리오신은 그람음성 세균 및 그람양성 세균 등의 각종 박테리아에 대하여 높은 항균활성을 나타내므로 천연 항생제로 유용하게 이용될 수 있다.
Abstract:
The present invention relates to a transgenic silkworm having hSCF recombinant protein. A method for preparing the transgenic silkworm having hSCF recombinant protein of the present invention comprises the steps of: introducing a dHsp70 promoter and a 3xP3 promoter to a transfer vector in order to prepare an expression vector for silkworm transformation; and micro-injecting the expression vector for the silkworm transformation into a silkworm egg and preparing a transduced transgenic silkworm. By the present invention, the transgenic silkworm, which is capable of mass producing stem cell factors (hSCF) which are useful to the human body at low costs, is provided. [Reference numerals] (1) Not transformed silkworm larva after 5 days;(2) Transformed silkworm larva after 5 days
Abstract:
PURPOSE: An antibacterial dental membrane is provided to ensure alkaline phosphatase activity in osteoblast, and to improve bond generation in a lesion. CONSTITUTION: A dental membrane contains 0.01-10 wt% of 4-hexylresorcinol, and 90-99.99 wt% of silk proteins. The silk protein is silk fibroin. A method for manufacturing the dental membrane comprises: a step of dissolving the silk fibroin in an ethanol solution containing a salt, and removing the salt and ethanol to prepare a silk fibroin solution; a step of dissolving 4-hexylresorcinol in ethanol and preparing 4-hexylresorcinol ethanol solution; a step of mixing the silk fibroin solution and the 4-hexylresorcinol ethanol solution, and comprising a dental membrane composition; and a step of pouring the dental membrane composition into a container and drying. [Reference numerals] (AA) Control group without applying a membrane; (BB) Experimental group with applying the membrane of the present invention composed of 3% hexylresorcinol and remaining amount of silk fibroin(an arrow indicates a remaining dental membrane);
Abstract:
PURPOSE: A papiliocin 2 gene isolated from a Papilio xuthus larva, an antipeptide using the same, and a method for producing a large amount of recombinant papiliocin 2 are provided to ensure antibacterial activity against gram-negative bacteria, Candida albicans, and resistant bacteria(MEREC). CONSTITUTION: A gene of antibacterial peptide papiliocin 2 is denoted by sequence number 7 and is isolated from Papilio xuthus larva. A recombinant antibacterial peptide papiliocin 2 is denoted by sequence number 9. A recombinant expression vector, pET32-Papiliocin2 contains the recombinant antibacterial peptide papiliocin 2. A recombinant E.col BL21(DE3)-(pET32-Papiliocin2) is formed by transforming with the recombinant expression vector pET32-Papiliocin2. A method for producing a large amount of the recombinant antibacterial peptide pailiocin 2 comprises: a step of preparing the recombinant antibacterial peptide papiliocin 2(sequence number 9); a step of preparing the recombinant E.coli by the recombinant expression vector containing the recombinant antibacterial peptide papiliocin 2; and a step of culturing the recombinant E.coli and isolating and purifying a water soluble recombinant fusion protein.
Abstract:
PURPOSE: A HSP70 promoter for transforming silkworm, a primer for amplifying the same, and an expression vector containing the promoter are provided to express green fluorescent genes in silkworm eggs and larvae, and to early determine transformation. CONSTITUTION: A HSP70 promoter for transforming silkworm is denoted by sequence number 1, and is isolated in a silkworm. A primer for amplifying the promoter has sequences of sequence numbers 2 and 3. An expression vector for transforming silkworm contains the HSP70 promoter. A method for preparing a silkworm transformant comprises: a step of treating a dormant silkworm egg with hydrochloric acid at 25 deg. C for 1 hour; a step of transducing green fluorescent gene at downstream of the HSP70 promoter(sequence number 1) and cloning fused vector to prepare the expression vector; and a step of microinjecting the expression vector to the silkworm egg.
Abstract translation:目的:提供用于转化蚕的HSP70启动子,其扩增引物和含有启动子的表达载体,以在蚕卵和幼虫中表达绿色荧光基因,并早期确定转化。 构成:用于转化蚕的HSP70启动子由序列号1表示,并在蚕中分离。 用于扩增启动子的引物具有序列号2和3的序列。转化蚕的表达载体含有HSP70启动子。 制备蚕转化体的方法包括:用25℃的盐酸处理休眠蚕卵的步骤。 C 1小时; 在HSP70启动子(序列号1)的下游转染绿色荧光基因并克隆融合载体以制备表达载体的步骤; 以及向蚕卵显微注射表达载体的步骤。
Abstract:
PURPOSE: A silkworm egg for transformation for producing green fluorescence silk and a transformant from the same are provided to stably and cheaply produce useful materials. CONSTITUTION: A silkworm egg for transformation is prepared by acid treatment of an egg of dormant state at 25 Deg. C. for one hour. A method for preparing a silkworm transformant comprises: a step of preparing the silkworm egg; a step of cloning a cassette vector to a basic vector in which a red fluorescent gene is introduced at 3XP promoter downstream and preparing a delivery system for silkworm transformation; and a step of microinjection of the delivery system to the silkworm egg. [Reference numerals] (AA) Hatching rate(%); (BB, DD) Untreated; (CC, EE) Micro-injection
Abstract:
본 발명은 실크 나노섬유 막의 생분해 속도를 조절하는 방법 및 그로부터 제조되는 실크 나노섬유 막에 대한 것이다. 보다 구체적으로 실크 나노섬유 막의 제조 공정 중, 방사된 섬유막을 불용화 처리하는 과정에서 생분해 속도를 조절할 수 있음을 발견하고 이를 제공하고자 한다. 본 발명에 의하면 실크 나노섬유 막의 생분해 속도를 향상시킬 수 있어 조직공학 분야에서 그 응용 범위를 확장할 수 있다. 즉, 본 발명은 실크 나노섬유 막으로부터 제조되는 생분해성 지지체를 제공한다. 실크, 나노섬유, 생분해성, 지지체, 조직공학, 알코올, 재결정, 불용화, 에탄올, 프로판올