• 제목/요약/키워드: Restriction sites

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Babesia equi ema-l 5' intergenic 뉴클레오타이드의 프로모터 위치 확인: I. PCR 증폭 및 제한효소지도 (Identification of promoter sites in Babesia equi ema-l 5' intergenic nucleotide: I. PCR amplification and restriction mapping)

  • 곽동미
    • 한국동물위생학회지
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    • 제27권1호
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    • pp.103-109
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    • 2004
  • Babesia equi ema-1 5' intergenic(IG) nucleotide was PCR amplified and analyzed for restriction sites in order to identify a promoter region in this IG nucleotide sequence. B equi ema-1 5' IG specific primers identified a 1268 bp PCR product. The sequence had restriction sites for 34 restriction enzymes when analyzed by a computer program. Among them, 26 enzymes had only one restriction site, but the others had more than one sites. When four restriction enzymes (Bgll , HindⅢ, Kpn1 and BamH1) were treated to digest the 1268 bp nucleotide, they had restriction sites as expected by the computer program. Information of restriction sites in the 1268 bp IG nucleotide will be applied to select restriction enzymes for cloning the IG nucleotide to a vector.

Bacillus thuringiensis serovar israelensis 4Q1로부터 분리된 plasmid 제한효소지도 작성 (Restriction endonuclease maps of three plasmids from bacillus thuringiensis serovar israelensis 4Q1)

  • ;이영근;강석권
    • 미생물학회지
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    • 제23권2호
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    • pp.122-128
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    • 1985
  • Bacillus thuringiensis serovar israelensis 4Q1 contains 8 different covalently closed-circular (CCC) plasmids of molecular weight 204, 267, 109, 103, 16, 7.6, 6.4, and 5.0kb. The three smallest plasmids, designated pBti6, and pBti8 may prove to be useful as cloning vectors because of thier size and ease of isolation. The three plasmids were incubated separately with 9 different restriction enzymes and 7 of the enzymes tested cleaved one or more of the plasmids. Plasmid pBti6 has a single site for Bg1 II, Pst I and Pvu II, two sites for Bc1 I and Eco RI, and five sites for Hind III. Plasmid pBti7 has a single site for Bam HI and Pst I, two sites for Hind III, and three sites for PvuII. Plasmic pBti8 has a single site for Bam HI, BelI and Hind III, two sites for Eco RI, and three sites for Bgl II and Pvu II. Composite restriction enzyme maps for pBti6, pBti7 and pBti8 were constructed. The sites of restriction enzyme cleavage were determined by single, double and partial digests of the plasmid DNA. All the restriction sites were aligned relative to the single Bgl II(pBti6), Pst I(pBti7) or Hind III(pBti8) site, respectively.

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'Restriction-PCR' - a Superior Replacement for Restriction Endonucleases in DNA Cloning Applications

  • Klimkait, Thomas
    • BMB Reports
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    • 제33권2호
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    • pp.162-165
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    • 2000
  • Polymerase chain reaction (PCR) is well established as an indispensable tool of molecular biology; and yet a limitation for cloning applications continues to be that products often require subsequent restriction to be that products often require subsequent restriction digests, blunt-end ligation, or the use of special linear vectors. Here a rapid, PCR-based system is described for the simple, restriction enzyme-free generation of synthetic, 'restriction-like' DNA fragments with staggered ends. Any 3'- or 5'-protruding terminus, but also non-palindromic overhangs with an unrestricted single strand length are specifically created. With longer overhangs, "Restriction-PCR" does not even require a ligation step prior to transformation. Thereby the technique presents a powerful tool e.g. for a successive, authentic reconstitution of sub-fragments of long genes with no need to manipulate the sequence or to introduce restriction sites. Since restriction enzyme-free and thereby devoid the limitations of partial DNA digests, "Restriction-PCR" allows a straight one-step generation and cloning of difficult DNA fragments that internally carry additional sites for specific sequence insertions or deletions can be precisely engineered into genes of interest. With these properties "Restriction-PCR" has the potential to add significant speed and versatility to a wide variety of DNA cloning applications.

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Pseudomonas putida에 내재하는 Plasmid pKU10의 제한지도 (Restriction Map of the R Plasmid pKU10 in Pseudomonas putida)

  • 전성희;임영복;심웅섭;이영록
    • 미생물학회지
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    • 제29권4호
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    • pp.226-229
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    • 1991
  • In our laboratory a R plasmid pKU10 was isolated from Pseudomonas and its characteristics were investigated. In this study, as a basic work to improve its utility as a cloning vehicle, restriction patterns of pKU10 were analyzed for other various restriction enzymes in addition to restriction evdonucleases previously examined. As a result, pKU10 DNA has two cleavage sites for ClaI and HpaI, and three sites for AvaI. The restriction map of pKU10 was supplemented with AvaI, ClaI, and HpaI. From the result of this experiment, the usefulness of PKU10 as a cloning vector in Pseudomonas will be enhanced by constructions of mini-plasmid or hybrid plasmids.

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The association between measurement sites of visceral adipose tissue and cardiovascular risk factors after caloric restriction in obese Korean women

  • Lee, Hye-Ok;Yim, Jung-Eun;Lee, Jeong-Sook;Kim, Young-Seol;Choue, Ryowon
    • Nutrition Research and Practice
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    • 제7권1호
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    • pp.43-48
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    • 2013
  • Quantities as well as distributions of adipose tissue (AT) are significantly related to cardiovascular disease (CVD) risk factors and can be altered with caloric restriction. This study investigated which cross-sectional slice location of AT is most strongly correlated with changes in CVD risk factors after caloric restriction in obese Korean women. Thirty-three obese pre-menopausal Korean women ($32.4{\pm}8.5$ yrs, BMI $27.1{\pm}2.3\;kg/m^2$) participated in a 12 weeks caloric restriction program. Subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) were measured using computed tomography (CT) scans at the sites of L2-L3, L3-L4, and L4-L5. Fasting serum levels of glucose, insulin, triglyceride, total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C), leptin and homeostasis model assessment-insulin resistance (HOMA-IR) were observed. Pearson's partial correlation coefficients were used to assess the relationship between AT measurement sites and changes in CVD risk factors after calorie restriction. When calories were reduced by 350 kcal/day for 12 weeks, body weight (-2.7%), body fat mass (-8.2%), and waist circumference (-5.8%) all decreased (P < 0.05). In addition, following caloric restriction, serum levels of glucose (-4.6%), TC (-6.2%), LDL-C (-5.3%), leptin (-17.6%) and HOMA-IR (-18.2%) decreased significantly (P < 0.05) as well. Changes in VAT at the level of L3-L4 were significantly greater than those at other abdominal sites, and these changes were correlated with changes in TC (P < 0.05), LDL-C (P < 0.001), SBP (P < 0.001) and HOMA-IR (P < 0.01). These results show that VAT at L3-L4 had a stronger correlation with CVD risk factors than with other AT measurement sites after caloric restriction.

제주특별자치도의 낚시 통제구역 설정에 관한 연구 (Studies on the setting a fishing restricted area of Jeju special self-governing province)

  • 구명성;김석종
    • 수산해양기술연구
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    • 제51권3호
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    • pp.441-447
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    • 2015
  • As a series of research plan, this study is to provide basic data necessary for the development of fishing industry which will contribute in establishing sound fishing culture in Jeju island through systematic management of fishing, protection of fishery resources and establishment of safety measures for fishermen in accordance with 'Fishing Management and Support Act'. To attain the proposed objective, this study conducted literature review and surveys on restriction standards of harmful substances generated from fishing equipment and baits, examined the current status of fishing management in popular fishing sites of other cities, and then reviewed and analyzed the fishing management and fishing-restriction zones in Jeju island. The survey on the opinions on the restriction criteria of fishing methods, tools and period, including the acceptable standards for harmful substances showed that general fishermen preferred 'alleviating the measure (44.8%)' to 'aggravating the measure (23.0%)'. Meanwhile, maritime police showed dominant opinion toward 'aggravating the restriction (52.2%)' over 'alleviating the measure (4.3%)'. Furthermore, fishing-related enterprise is favored 'aggravating the restriction (32.6%)' over 'alleviating the measure (27.9%)'. In the survey on the tolerance of fishing baits including criterion for content of certain substance in different types of bait, it showed 57.5% of general fishermen preferred alleviating restriction criteria while 20.7% of them favored tougher restriction. Whereas, 33.3% of maritime police group insisted such fishing baits should be more restricted while 16.7% answered it should be alleviated. 35.9% of fishing-related enterprise was in favor of alleviation while 14.3% preferred aggravation. Upon investigation on the status of fishing management in other cities and towns, it turned out that most of them had safety and convenience facilities, installed warning and guide signs in fishing sites, and set no fishing zones. The review of fishing management and restricted area showed that 10 sites required access restriction and 2 of 10 sites were considered to be partially restricted for weather and season. 82 fishing sites were regarded as unnecessary to be restricted and installation of safety facility and guide signs is necessary for the safety of fishermen.

Comparison in Restriction Profile Analysis of Vibrio furnissi, Vibrio fluvialis, and Vibrio parahaemolyicus Bacteriophage from Sea Product

  • Younghee Kim
    • 한국환경과학회지
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    • 제1권2호
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    • pp.99-103
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    • 1992
  • The bacteriophages lytic for Vibrio furnissi, Vibrio furniulis and Vibrio parahemolyticus were isolated from fish gills and shellfish. Nucleic acid of bacteriophage was prepared and restriction endonuclease profile was compared. All isolates contained deoxyribonucleic acid. V. fumissi bacteriophage from fish gills showed 2 bands with Bgl II, 1 with Pst, 3 with Hind III, 1 with Bm HI and 2 with EcoR I. V Puuialis phage represented 7 fragments with Bgl II, 1 with Pst, 4 with Hind III, and 2 with EcoR I. V parhemolyticn produced 13 sites with Hind III and 4 sites with EcoR I. The fragment types were varied depending on the phage isolation. All three phages were digested with Hind III and EcoR I with different sizes. V furnissi phage were digested with 5 different restriction enzymes. Key words: Bacteriophage, Vibrio furnissi, Vibrio fluvialis, Vibrio pnrahemolyticus, Deoxyribonucleic acid, Pst, Bam HI, Hind III, EcoR I, Bgl II.

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황색포도상구균에서 테트라사이클린 내성을 나타내는 플라스미드의 동정 (Characterization of Tetracycline Resistant Plasmid in Staphylococcus aureus by Restriction Enzyme Mapping)

  • 김기현;김종명;문경호
    • 약학회지
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    • 제36권3호
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    • pp.255-258
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    • 1992
  • The clinical isolate Staphylococcus aureus SA8 was resistant to tetracycline(Tc) and harboured a plasmid pKH1(24.82 kb). pKH1 was shown by curing and by transformation to specify resistance to Tc. The cleavage map of a pKH1 was determined by restricction enzyme mapping techniques. Cleavage map is given for BglII, EcoRI, HpaII, PvuII and SalI. Restriction endonuclease BamHI, BglI, BstEII, HpaI, PstI, and XhoI have no sites on this plasmid. HaeIII, XbaI, and HindIII have 5, 6, 14 sites, respectively.

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Comparison in Restriction Profile Analysis of Vibrio furnissi, Vibrio fluvialis, and Vibrio parahaemolyticus Bacteriophage from Sea Product

  • Kim, Young-Hee
    • Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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    • 제1권2호
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    • pp.99-103
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    • 1997
  • The bacteriophages lytic for Vibrio furnissi, Vibrio fluvialis and Vibrio parahaemolyticus were isolated from fish gills and shellfish. Nucleic acid of bacteriophages was prepared and restriction endonuclease profile was compared. All isolates contained deoxyribonucleic acid. V. furnissi bacteriophage from fish gills showed 2 bands with Bgl II, 1 with Pst, 3 with Hind III, I with Bam HI and 2 with EcoR 1. V fluvialis phage represented 7 fragments with Bgl II, 1 with Pst, 4 with Hind III, and 2 with EcoR 1. V. parahamolyticus produced 13 sites with Hind III and 4 sites with EcoR 1. The fragment types were varied depending on the phage isolation. All three phages were digested with Hind III and EcoR I with different sizes. V. furnissi phage were digested with 5 different restriction enzymes.

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유전자 재조합 대장균을 사용한 Alpha-interferon의 생산과 분비: 제 1 부. 발현벡터의 제작 (Extracellular Production of Alpha-Interferon by Recombinant Escherichia coli : Part I. Construction of Expression Vectors)

  • 노갑수;최차용
    • KSBB Journal
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    • 제5권1호
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    • pp.49-58
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    • 1990
  • 대장균으로부터 alpha interferon의 생산과 분비를 유도하기 위해 대장균의 lipoprotein promoter, lactose promoter 및 operator와 lipoprotein의 signal seqquence를 가지는 vector에 alpha-IFN유전자를 cloning하여 발현 vector pIF-III-B와 vector pIF-III-C를 제작하였다.

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