摘要:
The present invention relates to an isolated Bacillus sp. strain having probiotic activity. More particularly, the present invention relates to an isolated Bacillus sp. 2-4 (KCCM11107P) strain having probiotic activity. Since the strain of the present invention functions as probiotics by having an antibacterial activity against various fish pathogenic bacteria, as well as secreting helpful enzymes such as protease, amylase, cellulose, and lipase to help the digestion and absorption of the feed, the strain of the present invention can be helpfully used as a feed additive for fish and crustaceans.
摘要:
The present invention relates to a novel Bacillus sp. strain having probiotic activity. More particularly, the present disclosure relates to a novel Bacillus sp. 2-4 (KCCM11107P) strain having probiotic activity. Since the strain of the present disclosure functions as probiotics by having an antibacterial activity against various fish pathogenic bacteria, as well as secreting helpful enzymes such as protease, amylase, cellulose, and lipase to help the digestion and absorption of the feed, the strain of the present disclosure can be helpfully used as a feed additive for fish and crustaceans.
摘要:
The present invention relates to expression vectors and methods for enhancing soluble expression and secretion of a heterologous protein, particularly a bulky folded active heterologous protein which has one or more transmembrane-like domains or intramolecular disulfide bonds by linking a leader peptide with acidic or basic pI and high hydrophilicity thereto; by substituting one or more amino acids within N-terminal of the heterologous protein with ones having acidic or neutral pI and high hydrophilicity; or reducing elevating GRNA value of a polynucleotide encoding the leader peptide having basic pI value and high hydrophilicity. The expression vector and the method may be used to produce of heterologous protein and to transduce of therapeutic proteins in a patient by preventing formation of insoluble inclusion body and by enhancing secretional efficiency of the heterologous protein into the periplasm or outside cell.
摘要:
The present invention relates to a method for improving secretion efficiency of a recombinant foreign protein using a polypeptide fragment containing N-region of a signal sequence (directional signal) or variants thereof with the controlled pI value and/or a secretional enhancer composed of a hydrophilic polypeptide with the controlled pI value. The method of the present invention can be not only useful for the production of a recombinant foreign protein by preventing precipitation of an insoluble precipitate and by increasing extracellular or extra-periplasmic secretion efficiency of a recombinant protein but also useful for the transduction of an effective therapeutic protein by increasing membrane permeability using a strong secretional enhancer.
摘要:
The present invention is drawn to a method for enhancing secretional efficiency of a heterologous protein using a secretional enhancer consisting of a modified signal sequence which comprises the N-region of a signal sequence and/or a hydrophobic fragment of the said signal sequence comprising the said N-region and/or the hydrophilic polypeptide. The method of the present invention can be used not only for production of recombinant heterologous proteins by inhibiting insoluble precipitation and enhancing secretional efficiency of the recombinant protein into the periplasm or the extracellular fluid and but also for transduction of therapeutic proteins by enhancing membrane-permeability of the recombinant protein using a strong secretional enhancer.
摘要:
The present invention relates to phytase enzyme, a gene encoding the enzyme, and a Citrobacter sp. producing the enzyme. Particularly, the present invention relates to the phytase enzyme produced from Citrobacter sp. having (a) molecular weight of 47 kDa, (b) optimal pH of 3.5-4.5, (c) optimal temperature of 45-55° C., (d) a substrates phytate, p-nitrophenyl phosphate, tetrasodium pyrophosphate, ATP or ADP, (e) Michaelis constant of 0.3-0.5 mM utilizing phytate as substrate, and (f) high resistance to protease such as pepsin, trypsin, papain, elastase or pancreatin. The present invention also relates to the gene coding the phytase enzyme and the Citrobacter braakii producing the enzyme. The phytase enzyme and the Citrobacter braakii producing the enzyme of the present invention can be used in manufacturing a feed of monogastrics as feed additive and in recovering a specific decomposition product of phytate at low price.
摘要:
The strain Bacillus sp. DS11 (KCTC 0231BP) is disclosed and a phytase produced by DS11 having the following characteristics: optimum temperature: 65° C.; optimum pH: 7.0; molecular weight: 43,000 dalton; isoelectric point: 5.6; and a specified N-terminal amino acid sequence. The bacterial strain DS11 or the phytase it produces can be used as an animal feed additive.
摘要:
A COG type LCD device and method are disclosed, which improve picture quality by minimizing driving voltage drop. The device according to an embodiment comprises an image area including a thin film transistor and a pixel electrode in a pixel region defined by gate and data lines crossing each other. A plurality of drive IC chips are formed using a COG (Chip On Glass) method in the periphery of the image display area. A LOG (Line On Glass) line is provided for cascading the plurality of drive IC chips to divide various signals inputted from an external driving circuit and to provide the divided signals to the respective drive IC chips. The LOG line includes analog and digital power lines. First and second switches are provided between the analog and digital power lines so as to temporarily short the analog and digital power lines.
摘要翻译:公开了一种COG型LCD装置和方法,其通过最小化驱动电压降来提高图像质量。 根据实施例的器件包括由彼此交叉的栅极和数据线限定的像素区域中的薄膜晶体管和像素电极的图像区域。 在图像显示区域的周围使用COG(玻璃上芯片)方法形成多个驱动IC芯片。 提供LOG(Line On Glass)线,用于级联多个驱动IC芯片以分割从外部驱动电路输入的各种信号,并将分频信号提供给相应的驱动IC芯片。 LOG线包括模拟和数字电源线。 第一和第二开关设置在模拟和数字电源线之间,以便暂时缩短模拟和数字电力线。
摘要:
This invention relates to a strain of E.coli JM83/pKP2 transformed by a plasmid and phytase produced therefrom, and more particularly, to the strain E.coli JM83/pKP2 transformed with a recombinant vector pKP1 or pKP2, so prepared by gene manipulation.