• Title/Summary/Keyword: Protein patterns

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Proteomics-Driven Identification of SCO4677-Dependent Proteins in Streptomyces lividans and Streptomyces coelicolor

  • Choi, Si-Sun;Kim, Seon-Hye;Kim, Eung-Soo
    • Journal of Microbiology and Biotechnology
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    • v.20 no.3
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    • pp.480-484
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    • 2010
  • AfsR2 is a global regulatory protein that stimulates antibiotic biosynthesis in both Streptomyces lividans and S. coelicolor. Previously, various afsR2-dependent genes including a putative abaA-like regulatory gene, SCO4677, were identified through comparative DNA microarray analysis. To further identify the putative SCO4677-dependent proteins, the comparative proteomics-driven approach was applied to the SCO4677-overexpressing strains of S. lividans and S. coelicolor along with the wild-type strains. The 2D gel electrophoresis gave approximately 277 protein spots for S. lividans and 207 protein spots for S. coelicolor, showing different protein expression patterns between the SCO4677-overexpressing strains and the wild-type strains. Further MALDI-TOF analysis revealed that only 18 proteins exhibited similar expression patterns in both S. lividans and S. coelicolor, suggesting that the SCO4677 could encode an abaA-like regulator that controls a few cross-species common proteins as well as many species-specific proteins in Streptomyces species.

Studies on the Differentiation of Protein Patterns from Saccharomyces species by Isoelectric Focusing in Polyacrylamide Gels (Saccharomyces 종의 등전점 전기영동에 의한 단백질 분획상 차이에 관한 연구)

  • 김종진;한면수;최상규
    • Korean Journal of Microbiology
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    • v.29 no.3
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    • pp.179-183
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    • 1991
  • The whole proteins from 10 different Saccharomyces species were separated by isoelectric focusing, which was carried out in pH gradient polyacrylamide gels with the carrier ampholytes of various pH ranges. About 25 protein bands were found in the gel using pH 3.0-10.0 carrier ampholytes. In gel using pH 4.0-7.0 carrier ampholytes, the protein band of pI 6.3 was found in Sacch. cerevisiae NCYC 478, ATCC 26787, Sacch. rosei and Sacch. uvarum, but it was absent in Sacch. cerevisiae ATCC 24903, ATCC 42949, ATCC 36029, Sacch. steineri var hara, Sacch. bayanus, and Sacch. diastaticus.

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Detection and Identification of Vibrio Species Using Whole-Cell Protein Pattern Analysis

  • Lee, Chae-Yoon;Hong, Yeun;Ryu, Jio;Kim, Young-Rok;Oh, Sang-Suk;Lee, Soon-Ho;Hwang, In-Gyun;Kim, Hae-Yeong
    • Journal of Microbiology and Biotechnology
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    • v.22 no.8
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    • pp.1107-1112
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    • 2012
  • Outbreaks of foodborne diseases associated with Vibrio species such as V. parahaemolyticus, V. vulnificus, and V. cholerae frequently occur in countries having a dietary habit of raw seafood consumption. For rapid identification of different Vibrio species involved in foodborne diseases, whole-cell protein pattern analysis for 13 type strains of 12 Vibrio species was performed using SDS-PAGE analysis. Pathogenic Vibrio species such as V. parahaemolyticus, V. vulnificus, V. cholerae, V. alginolyticus, V. fluvialis, and V. mimicus were included in the 12 Vibrio species used in this study. Each of the 12 Vibrio species showed clearly specific band patterns of its own. Two different strains of V. parahaemolyticus showed two different SDS-PAGE whole-cell protein patterns, giving the possibility of categorizing isolated strains in the same V. parahaemolyticus species into two subgroups. The 36 Vibrio isolates collected from sushi restaurants in Busan were all identified as V. parahaemolyticus by comparing their protein patterns with those of Vibrio type strains. The identified isolates were categorized into two different subgroups of V. parahaemolyticus. The whole-cell protein pattern analysis by SDS-PAGE can be used as a specific, rapid, and simple identification method for Vibrio spp. involved in foodborne diseases at the subspecies level.

Optical detection of protein patterns using 1,3-bisdicyanovinylindane (1,3-bisdicyanovinylindane을 이용한 단백질 패터닝의 광학적 감지)

  • Park, Young-Min;Lee, Ji-Hye;Lee, Chang-Soo;Son, Young-A
    • Textile Coloration and Finishing
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    • v.19 no.4
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    • pp.32-37
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    • 2007
  • In this study, we have obtained the protein patterns using the membrane patterning of soft-lithography technique. The rapid detection of protein including bovine serum albumin (BSA) was resulted from the interaction with 1,3-bisdicyanovinylindane. For the proof of the interaction between BSA and dye, the UV-vis absorption spectra of BSA and dye were observed at 278 nm and 580 nm, respectively. As expected, the absorption spectrum of the interaction between BSA and dye was observed at 584nm. The absorption spectrum of the interaction was red-shifted. In addition, the optical images of the selectively reacted protein patterns showed the distinctive change of patterned color at different pH conditions. Because the dye has negative charges, the charge of BSA at different pH conditions could influence the interaction behavior between dye and BSA. Therefore, in the case of pH 7, the selectively patterned protein substrates obtained deep blue color pattern caused by electrostatic interaction between negative charges of the dye and positive charges of the BSA. However, in the case of pH 10, selectively patterned protein substrates obtained light blue color pattern because the electrostatic interaction was relatively lower than pH 7 due to the change of overall charge distribution of BSA.

Evaluation of Information Representation Goodness-of-fit According to Protein Visualization Pattern (단백질 가시화 형태에 따른 정보표현적합도 평가)

  • Byeon, Jaehee;Choi, Yoo-Joo;Suh, Jung-Keun
    • Journal of Internet Computing and Services
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    • v.16 no.2
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    • pp.117-125
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    • 2015
  • The information about protein structure gives the clues for the function of protein. It is needed for the improvement for the efficacy and fast development of protein drugs. So, the studies visualizing the structure of protein effectively increase. Most studies of visualization focus on the structural prediction for protein or the improvement on the rendering speed. However, studies of information delivery depending on the form of protein visualization are very limited. The major objective of this study is to analyze the information representation goodness-of-fit for the patterns of the hybrid visualization with primary and secondary structures of protein. Those hybrid visualizations included the patterns which updated current representative visualization services, Chimera, PDB and Cn3D. Information factor to analyze information representation goodness-of-fit is assorted by protein primary structure, secondary protein structure, the location of amino acid and ratio information about protein secondary structure, based on the result of subject-analysis. Subject is the group of experts who are involved in protein drug development over 5 years. The result of this study shows the meaningful difference in the information representation goodness-of-fit by the patterns of hybrid visualization and proves the difference in the information by the pattern of visualization.

Changes of Protein Bodies in Endosperm Cells during Embryo Development of Ginseng (Panax ginseng C.A. Meyer) Seeds - Seeds with Red Seed Coat and Indehiscent Seeds - (인삼(Panax ginseng C.A. Meyer) 종자의 배발달에 따른 배유세포의 단백과립 변화 - 홍숙 및 미개갑 종자 -)

  • 유성철
    • Journal of Plant Biology
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    • v.35 no.1
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    • pp.45-51
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    • 1992
  • The changes of protein bodies in endosperm cells of both seeds with red seed coat and indehiscent seeds of Panax ginseng C.A. Meyer have been investigated in relation to the embryo development. In the early stage of seeds with red seed coat, spherical spherosomes were distributed in endosperm cells. Protein bodies were formed from vacuoles containing the storage protein. Cell organelles were hardly observed in the cytoplasm. In the late stage of the seed with red seed coat, the endosperm was filled with spherosomes and protein bodies. The protein bodies consisted of amorphous inclusions with high electron density or proteinaceous matrix with even electron density. In the seed of in dehiscence, the protein body in endosperm cells contained globoids and protein crystalloids. The globoid of protein body had a electron dense materials. Umbiliform layer was formed between embryo and endosperm. The deformation patterns of endosperm cell wall and the cellulose microfibril were observed in endosperm cells near the umbiliform layer. Umbiliform layer consisted of lipid body and autolyzed cell debris. The protein body of endosperm cell near the umbiliform layer showed various degenerative patterns, and so electron density of proteinaceous matrix was gradually decreased.reased.

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Antibody Layer Fabrication for Protein Chip to Detect E. coli O157:H7, Using Microcontact Printing Technique

  • KIM HUN-SOO;BAE YOUNG-MIN;KIM YOUNG-KEE;OH BYUNG-KEUN;CHOI JEONG-WOO
    • Journal of Microbiology and Biotechnology
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    • v.16 no.1
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    • pp.141-144
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    • 2006
  • An antibody layer was fabricated to detect Escherichia coli O157:H7. The micropattern of 16-mercaptohexadecanoic acid (16-MHDA) as alkylthiolate was formed on the gold surface by using the PDMS stamp with microcontact printing $({\mu}CP)$ techniques. In order to form antibody patterns on the template, protein G was chemically bound to the 16-MHDA patterns, and antibody was adsorbed on a self-assembled protein G layer. The formation of the 16-MHDA micropattern, self-assembled protein G layer and antibody pattern on Au substrate was confirmed by surface plasmon resonance (SPR) spectroscopy. Finally, the micropatterning method was applied to fabricate the antibody probe for detection of E. coli O157:H7, and monitoring of antigen by using this probe was successfully achieved.

Effects of the Proprioceptive Neuromuscular Facilitation Patterns Exercise and Protein Intake on Balance, Gait, and Lower Extremity Muscular Strength for Sarcopenia in the Elderly (고유수용성신경근촉진법 패턴 운동과 단백질 섭취가 근감소증 노인의 균형과 보행 및 다리 근력에 미치는 영향)

  • Park, Jae-Cheol;Lee, Dong-Kyu
    • PNF and Movement
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    • v.19 no.3
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    • pp.311-319
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    • 2021
  • Purpose: The study examined the effects of the proprioceptive neuromuscular facilitation pattern exercise and protein intake on balance, gait ability, and lower extremity muscular strength for sarcopenia in the elderly. Methods: A total of 30 elderly people (65~74years) with sarcopenia were recruited and randomized to Group I (n=10), Group II (n=10), and Group III (n=10). Their balance ability was measured using the functional reach test. Group I performed the proprioceptive neuromuscular facilitation pattern exercise and protein intake. Group II performed the proprioceptive neuromuscular facilitation pattern exercise. Group III performed protein intake. Their gait ability was measured using the Timed Up and Go test. Lower extremity muscular strength was measured using the Five Times Sit to Stand test. Results: As a result of comparison within groups, Group I and Group II showed a significant difference in balance, gait, and lower extremity muscular strength after the experiment (p<0.05), and Group I showed a more effectively significant difference than either Group II or Group III in balance, gait, and lower extremity muscular strength before and after the experiment (p<0.05). Conclusion: This study showed that the proprioceptive neuromuscular facilitation patterns exercise and protein intake was effective in balance, gait ability, and lower extremity muscular strength for sarcopenia in the elderly.

Serum Protein Concentrations and Electrophoretic Patterns by Categories of Small Opacity Profusions in Coal Workers' Pneumoconioses (탄광부 진폐증자의 흉부 방사선 사진상 소음영의 밀도에 따른 혈청 단백 농도 및 전기영동 분획상)

  • Hong, Jeong-Pyo;Chung, Ho-Keun
    • Journal of Preventive Medicine and Public Health
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    • v.24 no.1 s.33
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    • pp.1-7
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    • 1991
  • The concentrations of serum proteins fractions and their electrophoretical patterns were investigated in 135 patients with coal workers' pneumoconiosis who participated in confirmative examination for pneumoconiosis in December 1989. Their radiographical profusions were classified as 1/0 or more. Agarose film and phosphoric acid-sodium hydroxide buffer(pH 9.6) were used for electrophoresis. Concentration of each protein fractions and electrophoretical patterns seemd to be equivalent to reference values. Serum ${\alpha}_1$- and $\beta$-globulin concentrations, however, were significantly different (p<0.50) among categories of small opacity profusions and showed the lowest level in the group of category 1. Albumin concentratins decreased and ${\alpha}_2$- globulin concentrations increased significantly (p<0.05) in the group of complicated with pulmonary tuberculosis. $\gamma$-globulin concentrations were not varied by category of profusions nor by pulmonary tuberculosis complication.

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Electrophoretic Comparison of Mycelial Protein and Enzyme Patterns in Three Interspecies of Some Edible Fleshy Fungi (전기영동법(Disc)에 의한 고등균류의 몇개 종간에 있어서 단백질 및 효소의 비교)

  • 홍순우;박민철
    • Korean Journal of Microbiology
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    • v.12 no.3
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    • pp.138-146
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    • 1974
  • Taxonomic relations among three species of some edible fleshy fungi(Lentinus edodes, Pleurotus ostreatus, Flammulina velutipes) in the family Tricholomataceae were examined by using polyacrylamied gel disc electrophoresis. The soluble, crude extract of mycelium grown on potato sucrose broth was subjected to electrophoresis. Similarities in the protein bands for each isolated of one species were compared with those for others. In the banding patterns there was a closer relationship between isolates within one species than among isolates of different species. However, the isozyme patterns obtained from each isolate of Peurotus ostreatus (esterase, peroxidase, tyrosinase) were appeared to represent the degree of geographical variability within one species.

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