• Title/Summary/Keyword: foreign protein

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Estimation of Physico-Chemical Characteristics of Domestic Aroma Rice and Foreign Aroma Rice (국내 육성 및 도입 향미자원의 이화학적 특성 평가)

  • Kim, Jeong-Soon;Ahn, Sang-Nag;Kang, Hee-Kyoung;Cho, Yang-Hee;Gwag, Jae-Gyun;Lee, Sok-Young
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.53 no.2
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    • pp.203-216
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    • 2008
  • This study was conducted to provide the fundamental data based on the analysis of phsyco-chemical characteristics of domestic aroma rice and foreign aroma rice for breeding of aroma rice. The average amylose content of domestic aroma rice and widely cultured domestic traditional rice were 18.1% and 19.0% respectively. The Indica and the Japonica types were 25.6% and 25.0%. In the domestic rice of Tongil and Japonica type, the average protein content were 7.6% and 6.4% respectively. And the average protein content of foreign Indica and Japonica type were 7.6% and 7.0% respectively. And the average protein content of widely cultured domestic traditional rice was 5.6%. The Japonica type of rice shown a low protein content compared with Indica type of rice, and the foreign Indica types of rice exhibited a wide range of protein contents. The average alkali digestive value (ADV) of Tongil type of the domestic aroma rice was about 5.0 and the value of Japonica type was about 6.0. The average ADV of foreign Indica and Japonica type were 4.3 and 5.1 respectively. Also the average ADV of widely cultured domestic aroma rice was about 6.0. The foreign aroma rice were distributed a variable range of ADV value and lower than the both domestic aroma rice and widely cultivated domestic rice. In the whole aspect of the amylogram, the highest viscosity, the lowest viscosity and the last viscosity of the total resources, in domestic aroma rice were clearly lower with the next order, Japonica type of foreign aroma rice, Indica type of foreign aroma rice, Japonica type of domestic aroma rice, widely cultured domestic traditional rice, and Tongil type of domestic aroma rice. It shown the difference aspect of amylograms according to the eco-type of the domestic and foreign aroma and the general rice, and it was distinguishable in difference of the aspect of the amylogram of the endosperm of rice as non-glutinous rice, waxy rice, and middle-waxy rice.

Foreign Body Granulomas after the Use of Dermal Fillers: Pathophysiology, Clinical Appearance, Histologic Features, and Treatment

  • Lee, Jeong Min;Kim, Yu Jin
    • Archives of Plastic Surgery
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    • v.42 no.2
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    • pp.232-239
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    • 2015
  • A foreign body granuloma is a non-allergic chronic inflammatory reaction that is mainly composed of multinucleated giant cells. Foreign body granulomas may occur after the administration of any dermal filler. Factors such as the volume of the injection, impurities present in the fillers, and the physical properties of fillers affect granuloma formation. The formation of granulomas involves five phases: protein adsorption, macrophage adhesion, macrophage fusion, and crosstalk. The clinical and pathologic features of granulomas vary depending on the type of filler that causes them. Foreign body granulomas can be treated effectively with intralesional corticosteroid injections. Surgical excisions of granulomas tend to be incomplete because granulomas have ill-defined borders and moreover, surgical excisions may leave scars and deformities.

A Quality Comparative Study on the Tomato Product in Korean Markets (I) - An Analytical Report on the Nutritive Ingredients and the Standardization of Duality of Tomato Katchup Marketed - (시판(市販) 도마도 가공품(加工品)의 품질(品質) 비교연구(比較硏究)(I) - 도마도 켓찹을 중심(中心)으로 -)

  • Rho, Sook-Nyung
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.8 no.1
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    • pp.9-14
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    • 1979
  • The consumption of catchup is increasing due to the raising of income level and food industry and westernization of dietary life followed by economic growth. In this paper I picked up three kinds of food produced by two foreign food companies and three kinds of food by two domestic companies. The average results by experimentation on the nutritive ingredients and the standard quality was as follows; A. Nutritve ingredients; 1) Water content a) Domestic 68.3% b) Foreign 69.1% 2) Protein content a) Domestic 2.2 g b) Foreign 2.1 g 3) Fat content a) Domestic 0.1 g b) Foreign 0.1 g 4) Carbohydrate content a) Domestic 25.1 g b) Foreign 24.6 g 5) Mineral content (Ash) a) Domestic 4.4 g b) Foreign 3.9 g 6) Calcium content a) Domestic 33.5 mg b) Foreign 24.2 mg 7) Phosphorus content a) Domestic 16.1 mg b) Foreign 24.2 mg 8) Vitamin C content a) Domestic 14.6mg b) Foreign 16.0 mg B. Standard quality 1) Remains after evaporation a) Domestic 41.7% b) Foreign 38.4% 2) Free mineral acid content a) Domestic none b) Foreign none 3) Tar chromatophore a) Domestic $trace(Acid)^+$ b) Foreign none 4) Heavy metalic $elements^*$ 5) Sodium chloride content a) Domestic 3.3% b) Foreign 3.3% 6) pH level a) Domestic 3.83 b) Foreign 3.76 + The tar chromatophore elements could not be accurately measured by chromatography. * The heavy metalic elements were both under safety levels in the domestic and foreign products.

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Phosphorylation of the Nucleocapsid Protein of Bovine Coronavirus Expressed with a Recombinant Baculovirus Vector

  • Yoo, dongwan;Graham-J.Cox
    • Journal of Microbiology and Biotechnology
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    • v.2 no.2
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    • pp.122-128
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    • 1992
  • Post-translational modifications of the nucleocapsid protein of bovine coronavirus (Quebec strain) were investigated. Coronavirions were radiolabelled in vivo with inorganic $[^{32}P]$orthophosphate and analysed by SDS-PAGE, followed by autoradiography. A single polypeptide with a migration rate of 55 KDa was identified by metabolic phosphate labelling, demonstrating that the nucleocapsid protein of bovine coronavirus was a phosphoprotein. A gene encoding the nucleocapsid protein was inserted immediately downstream from the polyhedrin promoter of Autographa californica nuclear polyhedrosis baculovirus. Spodoptera frugiperda cells infected with this recombinant baculovirus synthesized a 55 KDa polypeptide, as demonstrated by immunoprecipitation with anti-nucleocapsid monoclonal antibody. The recombinant nucleocapsid protein synthesized in Spodoptera cells could also be labelled by $[^{32}P]$orthophosphate. Phosphoamino acid analysis showed that both serine and threonine residues were phosphorylated in authentic, as well as in recombinant nucleocapsid proteins, with a relative phosphorylation ratio of 7:3. Our studies demonstrated that the nucleocapsid protein of bovine coronavirus was a serine and threonine-phosphorylated protein and that Spodoptera insect cells were able to properly phosphorylate the relevant foreign proteins.

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Nonstructural Protein 5B of Hepatitis C Virus

  • Lee, Jong-Ho;Nam, In Young;Myung, Heejoon
    • Molecules and Cells
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    • v.21 no.3
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    • pp.330-336
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    • 2006
  • Since its identification in 1989, hepatitis C virus has been the subject of extensive research. The biology of the virus and the development of antiviral drugs are closely related. The RNA polymerase activity of nonstructural protein 5B was first demonstrated in 1996. NS5B is believed to localize to the perinuclear region, forming a replicase complex with other viral proteins. It has a typical polymerase structure with thumb, palm, and finger domains encircling the active site. A de novo replication initiation mechanism has been suggested. To date, many small molecule inhibitors are known including nucleoside analogues, non-nucleoside analogues, and pyrophosphate mimics. NS5B interacts with other viral proteins such as core, NS3, 4A, 4B, and 5A. The helicase activity of NS3 seems necessary for RNA strand unwinding during replication, with other nonstructural proteins performing modulatory roles. Cellular proteins interacting with NS5B include VAMP-associated proteins, heIF4AII, hPLIC1, nucleolin, PRK2, ${\alpha}$-actinin, and p68 helicase. The interactions of NS5B with these proteins might play roles in cellular trafficking, signal transduction, and RNA polymerization, as well as the regulation of replication/translation processes.

Polymorphic Characterization of Pharmaceutical Solids, Donepezil Hydrochloride, by 13C CP/MAS Solid-State Nuclear Magnetic Resonance Spectroscopy

  • Park, Tae-Joon;Ko, Dong-Hyun;Kim, Young-Ju;Kim, Yon-Gae
    • Bulletin of the Korean Chemical Society
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    • v.30 no.9
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    • pp.2007-2010
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    • 2009
  • Donepezil hydrochloride is a reversible acetylcholinesterase inhibitor that is used in the treatment of Alzheimer’s disease to improve the cognitive performance. It shows different crystalline forms including hydrates. Therefore, it is very important to confirm the polymorphic forms in the formulations of pharmaceutical materials because polymorphs of the same drug often exhibit significant differences in solubility, bioavailability, processability and physical/chemical stability. In this paper, four different forms of donepezil hydrochloride were prepared and characterized using X-ray powder diffraction, Fourier transform infrared, and solid-state nuclear magnetic resonance (NMR) spectroscopy. This study showed that solid-state NMR spectroscopy is a powerful technique for obtaining structural information and the polymorphology of pharmaceutical solids.

A Domain based Parallel Prediction of Protein-protein interactions (도메인 기반 병렬 단백질 상호작용 예측)

  • Kim Chul-hwan;Chung Yoojin
    • Proceedings of the Korean Information Science Society Conference
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    • 2005.07b
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    • pp.229-231
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    • 2005
  • 본 논문에서는. 단백질은 도메인으로 모듈화 되어 있으며, 단백질 간 상호작용이 도메인간 상호작용의 결과라는데 착안, SVM을 이용하여 도메인 기반 단백질 상호작용을 예측하는 시스템을 구성하였다. 하지만, SVM 을 통한 실험은 정확한 예측 결과뿐 아니라 빠른 처리속도를 요구하게 되었다. 따라서 SVM을 병렬화하여 빠른 처리시간을 가지는 Parallel SVM을 적용, 도메인을 기반으로 한 단백질 상호작용을 실험하였으며, 이를 통해 정확성과 처리 속도를 측정, 비교함으로써 도메인 기반 병렬 단백질 상호작용 예측을 검증해 본다.

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Drug-Drug interaction predicting deep learning model using CTET protein of drugs (CTET Protein 을 사용한 Drug-Drug interaction 예측 Deep Learning Model)

  • Seo, Jiwon;Ko, Younhee
    • Proceedings of the Korea Information Processing Society Conference
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    • 2022.11a
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    • pp.63-65
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    • 2022
  • DDI(Drug-Drug Interaction)는 병원에서 발생하는 약물이상반응의 30%를 유발하는 부작용이지만, 현실적으로 모든 약물쌍의 DDI 를 기존 in vivo, in vitro 방식으로 예측하는 것은 불가능하다. 그렇기에, 다양한 in silico 방식의 DDI 예측 모델이 연구되고 있다. 본 연구에서는, 단백질 네트워크 상에서 RWR(Random Walk with Restart) 알고리즘을 통해 약물과 직접적으로 상호작용하는 단백질과 간접적으로 상호작용하는 단백질의 정보를 사용하여 DDI 를 예측하는 모델을 개발하였다. 이 모델을 통하여 기존에 발견하지 못한 DDI 를 새롭게 발견하고, 신약 개발 시에도, 신약과 함께 복용 시 문제를 일으킬 수 있는 약물을 예측하여 약물 이상반응을 방지하고자 한다.

Genetic Mapping and Sequence Analysis of the Gene Encoding the Major Capsid Protein of Bacteriophage E3 (박테리오파지 E3의 Major Capsid Protein을 만드는 유전자의 Mapping 및 염기서열 분석)

  • Bae, Soo-Jin;Myung, Hee-Joon
    • Korean Journal of Microbiology
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    • v.35 no.4
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    • pp.266-269
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    • 1999
  • Bacteriophage E3 grows very rapidly and forms a large size plaque with a diameter of 1 cm. The promoter controlling the expression of the gene encoding the major capsid protein is thought to be most efficient. To find out this promoter, this gene was mapped in the genome according to the following procedure. The major capsid protein was purified from phage particle and the N-terminal amino acid sequence was revealed. Based on this sequence,a degernerate oligonucleotide probe was designed and used for screening of the genomic DNA fragments. From the DNA sequence of the selected clone, the gene encoding the major capsid protein was mapped at 70% of E3 genome. The expression of this gene was not sensitive to rifampicin which indicated the presence of E3's own RNA polymerase.

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Association of BAF53 with Mitotic Chromosomes

  • Lee, Kiwon;Shim, Jae Hwan;Kang, Mi Jin;Kim, Ji Hye;Ahn, Jong-Seong;Yoo, Soon Ji;Kim Kwon, Yunhee;Kwon, Hyockman
    • Molecules and Cells
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    • v.24 no.2
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    • pp.288-293
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    • 2007
  • The conversion of mitotic chromosome into interphase chromatin consists of at least two separate processes, the decondensation of the mitotic chromosome and the formation of the higher-order structure of interphase chromatin. Previously, we showed that depletion of BAF53 led to the expansion of chromosome territories and decompaction of the chromatin, suggesting that BAF53 plays an essential role in the formation of higher-order chromatin structure. We report here that BAF53 is associated with mitotic chromosomes during mitosis. Immunostaining with two different anti-BAF53 antibodies gave strong signals around the DNA of mitotic preparations of NIH3T3 cells and mouse embryo fibroblasts (MEFs). The immunofluorescent signals were located on the surface of mitotic chromosomes prepared by metaphase spread. BAF53 was also found in the mitotic chromosome fraction of sucrose gradients. Association of BAF53 with mitotic chromosomes would allow its rapid activation on the chromatin upon exit from mitosis.